Frequently Asked Questions About Our Products And Services
progress bar
progress bar

Frequently asked questions
Contact us
Subscribe to newsletter
w10.0.14 | c1.25.03.1
PROD | u7.5.14
  Quick Order  0
Ecom-Admin
  • Markets
  • Products
  • Company
  • Contact
  • EN
  • Oligonucleotide Synthesis
  • Gene Synthesis & Molecular Biology
  • Sanger Sequencing
  • Next Generation Sequencing
  • Genotyping & Gene Expression

Further Information:

>> EVOcard

>> Product FAQs

>> SALE %

Application Oligos

  • qPCR Probes
  • Ultimate Precision Probes
  • PCR Primer
  • SeqPrimer
  • Cloning Oligos
  • NGSgrade Oligos 2.0
  • NGSgrade Oligos
  • NGS UDI Primer Sets
>> Show more

Custom Oligos

  • Custom DNA Oligos
  • Salt-Free Oligos
  • Large Scale Oligos
  • Custom RNA Oligos
  • Special Requests
>> Show more

Oligo Tools

  • Oligo Analysis Tool
  • PCR Primer Design Tool
  • Sequencing Primer Design Tool
  • qPCR Assay Design Tool
  • siRNA Design Tool
  • Prepaid Oligo Coupons
  • Excel Order Forms
>> Show more

Benefit from more than 25 years of experience in oligonucleotide synthesis!

>> Show all products

Gene Synthesis

  • Standard Genes
  • Express Gene
  • Gene Synthesis Project
  • GENEius
>> Show more

GeneStrands

  • GeneStrands
  • Express GeneStrands

Molecular Biology Services

  • Plasmid Preparation
  • CRISPR/Cas9
>> Show more

Optimise your research and save time with high quality gene synthesis and molecular biology services.

>> Show all products

Sequencing Services

  • Mix2Seq Service
  • LightRun Services
  • TubeSeq Supreme
  • PlateSeq Supreme
  • Direct Colony Sequencing
  • Whole Plasmid Sequencing
  • Primer Walking Service
>> Show more

Prepaid Products

  • Mix2Seq Kits
  • LightRun Barcodes
  • Barcode Labels & Coupons
  • PlateSeq Kits
  • PlateSeq Kit Colony
  • ONT Prepaid Coupons
>> Show more

Additional Services

  • Free Barcode Labels
  • Sequencing Accessories
  • Sequencing Primers
  • Sample Shipment
>> Show more

Hiqh quality Sanger sequencing with highest flexibility for every sample type.

>> Show all products

Top 5 Products

  • INVIEW Resequencing
  • INVIEW Microbiome
  • INVIEW Transcriptome
  • INVIEW Metagenome
  • Amplicon sequencing
  • Bioinformatic services
  • Genome sequencing
>> Show more

Spotlight

  • INVIEW Exome
  • INVIEW Virus
  • INVIEW CRISPR Check
  • NGS Prepaid Coupons
  • Oncology Solutions
  • OLINK Explore 3072
  • Clinical Research Exome
  • Bacteria Hybrid Assembly
>> Show more

Oxford Nanopore Products

  • Whole Plasmid Sequencing
  • Linear / Clonal Amplicons
  • Bacterial Genome Sequencing
  • 16S Full-Length Microbiome
  • Complete ONT Portfolio
>> Show more

NGS from experts - ISO-certified, fully automated and easy to order online.

>> Show all products

Applied Genomic Services

  • DNA Barcoding
  • Cell Line Authentication
  • Mycoplasmacheck
  • Fragment Length Analysis
>> Show more

Genotyping services

  • SNP Genotyping
  • Copy Number Variation
  • Mikrosatellites/ STR/FLA/ IDAA
>> Show more

Gene Expression Services

  • Transcriptome analysis
  • Expression Arrays
  • Target Gene Expression
>> Show more

Cell line authentication, Mycoplasmacheck, Fragment length analysis & tailored projects.

>> Show all products
  • Pharma / Biotech
  • Agrigenomics
  • Consumer Genomics
  • Food & Environment
  • Diagnostic Kit Producer
  • Research / Biotech

Further Information:

>> Quality

>> Events

Synthesis Products

  • Industrial-grade NGS Oligos
  • Ultimate Precision Probes
  • Special Oligo Requests
  • Large Scale Oligos
  • Gene Synthesis
  • GeneStrands
  • Plasmid Preparation

Sequencing Services

  • Amplicon Sequencing
  • Exome Sequencing
  • Transcriptome Sequencing
  • Primer Walking Service

Favorite Content

  • NGS – Disease Diagnostics
  • Cancer Ecology
  • Personalised Cancer Therapy
  • Revolutionising human-like-protein production
  • The Microbiome Of Cancer
  • All about biomarker discovery

Our genomics solutions support you along your drug development chain of small and large molecules and in precision medicine.

>> Show all products

Plant Breeder

  • DNA marker discovery
  • Marker-assisted selection
  • GRAS-Di®
  • Microbiome and metagenomics

Animal Breeder

  • DNA Marker discovery
  • Pathogen screening
  • Parentage testing
  • Genomic selection
  • Marker-assisted selection

Favorite Content

  • Microarrays Accelerate Blue Biotechnology
  • How To Do NGS 50% Faster
  • NGS Portfolio

Benefit from our range of tailored, high throughput genotyping solutions to help you achieve your goals faster, for less.

>> Show all products

Sequencing Services

  • Genotyping
  • Epigenome Profiling
  • Microbiome Analysis
  • Shotgun Sequencing
  • Whole Genome Sequencing

Additional Services

  • Sample Collection Kits
  • Shipping
  • DNA Extraction
  • Laboratory Service
  • Biobanking

Favorite Content

  • Population Genetics
  • The End of Gene Doping
  • Home Genomics Testing
  • IVDR Compliance

Welcome to your full-service laboratory. Benefit from our end-to end solutions for sample collection kit logistics and genomic solutions.

>> Show all products

Food Testing

  • Food Authenticity
  • Meat Traceability
  • Pathogen Traceability
  • Cannabis and Hemp Testing

Environmental Testing

  • Non-targeted detection of organisms / species
  • Targeted detection of organisms / species
  • eDNA Tracker

Favorite Content

  • Determine the Source of Meat
  • Pine Nuts – Why Testing For Edibility Matters

DNA-based solutions to improve and support your analysis, monitoring and traceability across your value chain.

>> Show all products

Synthesis Products

  • Large Scale Oligos
  • Special Requests in Tubes
  • Special Requests in Plates

Quality Assurance

  • GLP
  • ISO 17025
  • ISO 13485

Favorite Content

  • Oligonucleotides For Diagnostics
  • The Future of RNA Applications

Our scalable and high-quality oligonucleotides synthesis offer makes us an ideal partner for your industry applications.

>> Show all products

Favorite Services

  • Custom DNA Oligos
  • TubeSeq Services Sanger
  • INVIEW Microbiome NGS
  • NGS Services
  • GeneStrands

Express Services

  • TubeSeq NightXpress
  • Mix2Seq NightXpress
  • Express Genes
  • Express GeneStrands

Favorite Content

  • Eurofins Genomics Goes Green
  • GENEius – Codon Usage Optimisation
  • 5 tips to speed up your qPCR

For your research project in academic, governmental and industrial environment we have the right genomic service.

>> Show all products

Corporate Information

  • About us
  • Career
  • Events
  • Press Releases
  • Collaborations
  • Blog
  • Newsletter
  • Quality Assurance
  • Lab closure times

Help

  • Video Tutorials
  • Ordering
  • Payment
  • Shipping & Delivery
  • Downloads
  • Data & Privacy
  • Material and Methods

Contact us

Eurofins Genomics
Germany GmbH
Anzinger Str. 7a
85560 Ebersberg
Germany

  • phone +49 7531 816068
  • e-mail support

Get in touch with us!

You need support or advice with your order? You don't find the perfect product or you like to get consultation regarding your results?

>> Get in touch

Find your product

Find your product

  • Sequencing Primer
  • PCR Primer
  • Mycoplasmacheck
  • SALE %
  • TubeSeq

Login to Eurofins

Please login with your email address and password!

>> Login

New at Eurofins Genomics?

Register a new account at Eurofins Genomics!

>> Register
Impersonating: Max Mustermann

Administration

  • Ecom Admin
  • Stop Impersonating

Welcome

Julian Schlossmacher

Login / Register

 
Email
Email can not be empty
Password:
Password can not be empty
Forgot password?
Create Account
No SSL
>> Logout >> My profile

Contact

Dr. Melvin Siliakus

+31 629 39 25 66 >> Send message

Account

  • Overview
  • Orders
  • Quotes
  • EVOcards
  • Preferences
  • DropBoxes
  • Sanger Kits & Barcodes
  • NGS Barcodes & Coupons
  • Sanger Samples & Primers
  • Oligo Coupons

Language

model-logo

New Website Navigation explained

>> Close
6

Last added items

0 Item(s)

Go to Cart

>> Go to cart X
 

Quick Order

X

Industrial-grade Products & Services

What are industrial-grade products? <<click here >>

Oligonucleotide Synthesis

  • Ultimate Precision Probes
  • NGSgrade Oligos in Tubes
  • NGSgrade Oligos in Plates
  • Request for Oligos in Tubes
  • Request for Oligos in Plates
  • Large Scale Oligos

Gene Synthesis & Molecular Biology

  • Gene Synthesis
  • GeneStrands
  • Express GeneStrands
  • Plasmid Preparation
  • Cloning Service

Next Generation Sequencing

  • Genome (Re-)Sequencing
  • Transcriptome Sequencing
  • Microbiome profiling
  • Exome Sequencing
  • Clinical Research Exome
  • Oncoprofiling
  • Liquid Biopsy Sample Sequencing
  • Ready-to-Load
  • Virus Sequencing
  • Amplicon Sequencing
  • Metagenome
  • ONT products
  • NGS Barcodes & UPS labels
  • Replacement samples
  • NGS Additional Services

Genotyping & Genexpression

  • Cell Line Authentication
  • Fragment Length Analysis
  • Mycoplasmacheck Barcodes
  • Cell Line Barcodes

Oligonucleotide Synthesis

Primers & Probes for qPCR Applications

  • PCR Primer in Tubes
  • PCR Primer NightXpress
  • PCR Primer in Plates
  • LocNA Primer
  • Dual Labeled Probes
  • MGB Probes
  • LocNA Probe
  • Molecular Beacons
  • LightCycler Probes
  • Probe based qPCR Assay
  • Ultimate Precision Probes

Oligos for Next Generation Sequencing

  • NGSgrade Oligos 2.0 Tubes
  • NGSgrade Oligos 2.0 Plate
  • NGSgrade Oligos in Tubes
  • NGS Oligos for NovaSeq
  • NGS Oligos for MiSeq
  • NGS UDI Primer Sets

Primers for Sanger Sequencing

  • SeqPrimer in Tubes
  • SeqPrimer NightXpress
  • SeqPrimer in Plates
  • Standard Primer

Oligos for Cloning Applications

  • Cloning Oligos
  • EXTREmer Oligos

Custom Oligos

  • Custom DNA Oligos in Tube
  • SaltFree Oligo NightXpress
  • Custom DNA Oligos in Plates
  • Custom RNA Oligos
  • O-Methyl-RNA / Chimerics
  • RNA qPCR Probes
  • siMAX siRNA
  • Special Oligos in Tubes

Oligo Tools

  • Oligo Analysis Tool
  • PCR Primer Design
  • SeqPrimer Design
  • qPCR Assay Design
  • siRNA Assay Design
  • Prepaid Oligo Coupons

Gene Synthesis & Molecular Biology

Synthetic genes

  • Gene Synthesis
  • Combinatorial libraries
  • Gene Synthesis Projects

GeneStrands

  • GeneStrands
  • Express GeneStrands

Molecular Biology Services

  • Plasmid Preparation
  • Site Directed Mutagenesis
  • DNA Cloning Service

Sanger Sequencing

Sanger Sequencing Services

  • TubeSeq Supreme
  • PlateSeq Supreme
  • Direct Colony Sequencing
  • Ready2Load Plate
  • Ready2Load Tube
  • Whole Plasmid Sequencing Tubes
  • Whole Plasmid Sequencing Plate
  • TubeSeq NightXpress
  • Primer Walking Service

Prepaid Products for Sanger Sequencing

  • Prepaid Barcodes & Coupons
  • Mix2Seq Kits
  • PlateSeq Kits
  • LightRun Barcodes
  • ONT Coupons

Additional Services

  • Tube & Plate Barcode Labels
  • Sequencing Accessories
  • Sample Shipment
  • Sequencing Primer Design

Next Generation Sequencing

Genome Sequencing

  • INVIEW Resequencing
  • NGSelect DNA
  • Whole Genome Sequencing
  • Bact. Whole Genome Seq (ONT)

Transcriptome Sequencing

  • INVIEW Transcriptome
  • NGSelect RNA

Metagenome / Microbiome

  • INVIEW Microbiome
  • INVIEW Metagenome

Exome Sequencing & Oncology Solutions

  • INVIEW Human Exome
  • Liquid Biopsy Samples
  • INVIEW Oncoprofiling
  • Clinical Research Exome

CRISPR & Prepaid NGS Coupons

  • INVIEW CRISPR Check
  • Redeem NGS Coupons
  • Order NGS Coupons

VIRUS

  • INVIEW Virus

Plasmid Sequencing

  • INVIEW Plasmid Verification
  • Whole Plasmid Sequencing (ONT) Tubes
  • Whole Plasmid Sequencing (ONT) Plate

Amplicon sequencing & Ready-to-Load

  • NGSelect Amplicon
  • NGSelect Ready-to-Load
  • Clonal Amplicons (ONT)

Oxford Nanopore projects (WGS, Amplicons, 16S)

  • ONT projects

ONT Lite

  • ONT Lite Whole Plasmid Sequencing
  • ONT Lite Clonal Amplicon Sequencing
  • ONT Lite Bacterial Genome Sequencing
  • ONT Lite Assembly Review

Additional Services

  • NGS Barcodes & UPS labels
  • NGS Additional Services
  • Sample Submission Guidelines
  • Prepaid NGS Coupons
  • Replacement samples
  • Request for Information

Genotyping & Gene Expression

Mycoplasmacheck

  • Mycoplasmacheck Barcodes
  • Mycoplasmacheck results

CLA & FLA

  • Cell line authentication Service (CLA)
  • Fragment length Analysis (FLA)
  • Cell line authentication barcodes

Others

  • Genotyping request form

EVOcard

Order / Refill EVOcard

Login / Register

 
Email
Email can not be empty
Password:
Password can not be empty
Forgot password?
Create Account
No SSL

 

  • Order Menu

    EVOcards

    • Order / Refill EVOcard

    Oligonucleotides & siRNA

    • (q)PCR Primer in Tubes
    • (q)PCR Primer in Plates
    • (q)PCR Primer NightXpress
    • SeqPrimer in Tubes
    • SeqPrimer in Plates
    • SeqPrimer NightXpress
    • Custom DNA Oligos in Tubes
    • Custom DNA Oligos in Plates
    • SaltFree Oligo NightXpress
    • NGSgrade Oligos in Tubes
    • Standard Primer
    • Standard Primer NightXpress
    • LocNA Primer
    • LocNA Probes
    • Dual Labeled Probes
    • MGB Probes
    • Probe based qPCR Assay
    • Cloning Oligos in Tubes
    • EXTREmer Oligos
    • Nano-Scale Plate Oligos
    • NGS UDI Primer Sets
    • Custom RNA Oligos
    • RNA qPCR Probes
    • siMAX siRNA
    • Large Scale Oligos
    • Special Oligo Requests
    • More...

    Custom DNA Sequencing

    • Mix2Seq Kits
    • LightRun Barcodes
    • Sequencing Primers
    • TubeSeq Service
    • SupremeRun Tube
    • Tube & Plate Barcode Labels
    • TubeSeq Labels & Coupons
    • SupremeRun Barcodes
    • Sequencing Accessories
    • PlateSeq Kits
    • SupremeRun 96
    • Primer Walking
    • PlateSeq Service
    • SupremeRun | Multiprimer
    • Sequencing Projects
    • Direct Colony Sequencing
    • Ready2Load Plate
    • More...

    Next Generation Sequencing

    • INVIEW Microbiome 3.0
    • NGSelect DNA
    • Barcode & UPS Labels
    • INVIEW Transcriptome
    • NGSelect RNA
    • Replacement samples
    • INVIEW Resequencing
    • NGSelect Amplicon
    • Sample Submission
    • INVIEW Human Exome
    • Redeem NGS Coupons
    • Request for Information
    • INVIEW CRISPR Check
    • SARS-CoV-2 RNA-Seq
    • More...
    • INVIEW Virus

    Gene Synthesis & Molecular Biology

    • New gene wizard
    • Plasmid Preparation
    • GeneStrands
    • Express Genes
    • DNA Cloning Service
    • Express GeneStrands
    • Gene Synthesis Project
    • Site Directed Mutagenesis
    • Combinatorial libraries
    • Synthetic genes
    • Corona Control Plasmids

    Genotyping & Gene Expression

    • Mycoplasmacheck
    • Cell Line Authentication 2.0
    • Fragment Length Analysis
    • Request for Information

0 Item(s)

Go to Cart

  • Other Languages
  • DNA & RNA
    Oligonucleotides
    • >

      Optimised Application Oligos

    • >
      Ultimate Precision Probes
    • >
      PCR Primers
    • >
      SeqPrimer
    • >
      Cloning Oligo
    • >
      EXTREmers
    • >
      NGSgrade Oligos
    • >

      qPCR Probes

    • >
      NGSgrade Oligos 2
    • >
      Custom DNA & RNA Oligos
    • >
      Custom DNA Oligos
    • >
      Large Scale Oligos
    • >
      Custom RNA Oligos
    • >
      siMAX siRNA
    • >
      Special Requests
    • >
      Salt Free Oligos
  • Custom DNA Sequencing
    • >

      Eurofins Services

    • >
      Mix2Seq
    • >
      Mix2Seq Kits
    • >
      TubeSeq Services
    • >
      TubeSeq Labels & Coupons
    • >
      PlateSeq Service
    • >
      PlateSeq Kits
    • >
      Direct Colony Sequencing
    • >
      Whole Plasmid Sequencing
    • >

      LightRun Services

    • >
      LightRun Barcodes
    • >
      GATC Services
    • >

      Additional Services

    • >
      Tube & Plate Barcode Labels
    • >
      Sequencing Primers
    • >
      Sequencing Accessories
    • >
      Sample Shipment
    • >
      Free Sample Pick-Up
    • >
      Shipping Options
  • Next Generation Sequencing
    • >

      NGS Built For You

    • >
      INVIEW Microbiome
    • >
      INVIEW Transcriptome
    • >
      INVIEW Exome
    • >
      INVIEW Metagenome
    • >
      INVIEW CRISPR Check
    • >
      INVIEW Virus
    • >
      NGS prepaid solutions
    • >
      INVIEW Plasmid Verification
    • >

      NGS Build Your Own

    • >
      NGSelect DNA
    • >
      NGSelect RNA
    • >
      NGSelect Amplicons
    • >
      NGSelect Ready2Load
    • >
      Human Whole Genome Sequencing
    • >
      WGS Select
    • >
      Bacteria Whole Genome Sequencing
    • >
      Amplicon sequencing
    • >
      Amplicon sequencing - full service
    • >

      Applications

  • Gene Synthesis / Molecular Biology
    • >

      Gene Synthesis

    • >
      Standard Genes
    • >
      Express Genes
    • >
      Complex Genes
    • >
      GeneStrands
    • >
      Express GeneStrands
    • >
      Combinatorial Libaries
    • >
      GENEius
      • >

        Molecular Biology Services

      • >
        Plasmid Preparation
      • >
        Site Directed Mutagenesis
      • >

        Applications

      • >
        CRISPR_Cas9
    • Genotyping & Gene Expression
      • >

        Service Platforms

      • >
        Illumina Array Platforms
      • >
        Affymetrix Array Platforms
      • >
        Fluidigm BioMark & EP1
      • >
        Roche LightCycler
      • >
        Sanger & NGS Sequencing
      • >

        Genotyping Services

      • >
        SNP Genotyping
      • >
        Microsatellites / STR / FLA / IDAA
      • >
        Sequencing Based Genotyping
      • >
        Genotyping by PCR
      • >
        Genome Wide Association
      • >
        Human Identification
      • >
        Copy Number Variation
      • >

        Gene Expression Services

      • >
        Transcriptome Analysis
      • >
        Expression Arrays
      • >
        Target Gene Expression
      • >
        miRNA / Small RNAs Analysis
      • >

        Applied Genomics Services

      • >
        Residual DNA Analysis
      • >
        DNA Barcoding
      • >
        Cell Line Authentication
      • >
        Mycoplasmacheck
    Header Image service-corner
     
     
    • Corporate Information
    • Quality Assurance
    • Contact Us
    • Deals & Promotions
    • Help Center
    • Product FAQs
      • DNA & RNA Oligonucleotides
      • Sanger Sequencing
      • Next Generation Sequencing
      • Gene Synthesis / Molecular Biology
      • Mycoplasmacheck
    • Lab closure times
    • Material and Methods
    • VEGA – The new Eurofins Genomics chatbot

     

    print content
    increase font
    decrease font

    Frequently Asked Questions About Our Products And Services

    The right answers to frequently asked questions

    Find the answers to all our products and services by clicking the links below.

    Sanger Sequencing

    Products & Services

    How long are prepaid products valid?

    All prepaid barcode labels, kits, and coupon codes remain valid for five years from the date of ordering, after which they expire.

    You can opt to receive an email notification before any of your prepaid Sanger products expire by specifying it in your personal preferences.

    What are Tube Labels - when / why do I need it?

    Tube Labels are free barcode labels used for error free labelling and identification of your samples in tubes for all kind of Sequencing services. They allow fast processing your sequencing order. You can track the usage status, the usage date as well as the user of the lables under "May Sanger Kits & Labels".

    Tube Labels can be ordered online and are free of charge.

    When should I use primer barcodes?

    If you send your own primers for sequencing, use the yellow primer barcodes to identify them.

    An overview of which labels were used when and by whom can be found under "My Sanger Kits & Labels".

    Primer barcodes can be ordered online for free.

    .

    How long will my sequencing data be stored?

    We will keep your data 6 months after finishing your reads in your personal account. During this time, you can download and save your data.

     

    How long do you store samples and primers?

    For all services, DNA samples are stored for 4 weeks.

    Synthesised primers are stored for 4 weeks free of charge.

    Storage of synthesised primers for one year is available at additional cost.

    Enclosed primers are stored for 10 days free of charge.

    Storage of enclosed primers for 6 months is available at additional cost.

    During this time it is possible to use the DNA and primer for further reactions.

    Premixed samples (DNA mixed with the primer) and pre-cycled samples for the Ready2Load service will be discarded after the order is finished and the data submitted.

     

    Can I send shRNA constructs or other DNA templates with probable secondary structures?

    Yes, we accept templates with more difficult sequence structures. 

    Can you sequence phage or genomic DNA?

    Please contact our Customer Support to get the best recommendation for your request.

    When do I get my sequencing results?

    Overview of delivery times for the majority of our Sanger services:

     

    NightXpress services Data delivery next
    business day until
    Regular non-NightXpress
    services
    Data delivery next
    business day until
    Mix2Seq NXP 12 pm CET Mix2Seq 6 pm CET
    LightRun NXP 1 pm CET LightRun Tube 6 pm CET
    PlateSeq Mix NXP 1 pm CET PlateSeq Mix 6 pm CET
        LightRun 96 6 pm CET
        TubeSeq Supreme 6 pm CET
           
        PlateSeq DNA 6 pm CET
        PlateSeq PCR 6 pm CET

     
    Please note:


    Specified delivery times are mainly depending on sample arrival time in the lab.


    For many European cities we are providing coordinated pick-up and transport services using Eurofins DropBoxes ensuring on time delivery in the lab.


    However, these logistics services may also be subject to force majeure or unpredictable changes caused by e.g. strikes, accidents, storms, floods. In such events, Eurofins Genomics cannot guarantee the stated data delivery time and is not responsible for delays caused by logistics services.


    Additionally, our general terms and conditions (GTCs) apply.

     

     

     

    How to order

    How can I order your DNA sequencing service?

    Please use our online shop for every Sanger Sequencing product and service. In the order menu you find all links to the respective sequencing order pages. 

    You will find all necessary information regarding sample preparation for each sequencing service under in the sample submission tab of the respective service.

    Where should I send my sequencing samples?

    Eurofins Genomics has already installed hundreds of DropBoxes in Europe for free sample pick-up. Your nearest DropBox location with pick-up time is displayed in your account when you are logged in.

    In case there is no DropBox near you, you can of course send your samples by post or arrange for them to be delivered by another delivery company. Please send Sanger sequencing samples to the addresss which is shown to you during checkout.

     

     

    Can I order more than one read per sample?

    Yes, indepenent on the sample type, more reactions per sample can be specified. Just follow the instruction on the order page. 

    How many plates per order can I send?

    Up to 15 plates can be uploaded / specified at once and saved in you cart. There is no limitation on the number of plates per order you can checkout.

    Can I re-order sequencing runs?

    You can order new sequencing reactions from stored samples within 4 weeks no matter if you have sent the samples in tubes or plates. 

    If you have sent the samples in tube format, just use the same order page and type in the initials of the respective sample. The system prepopulates all stored samples with these initials.

    If you want to re-order reactions from a few samples originally sent in plates, you find the option "Re-Order from stored plates". Select the stored plate and specify the new reactions for the respective samples.

    Under "My samples & primers" you can check the expiration date of your samples and primers.

    Can I order additional services when using prepaid barcodes?

    With prepaid barcodes, you can order additional services such as primer synthesis DNA mini preparations. You will be billed separately for this.

    Sample Preparation

    How should I send my sequencing samples?

    You will find all information about sample format, template and primer concentration as well as shipping information for each of our sequencing services in the respective "Sample Submission" tab.

    How should I determine the concentration of my samples?

    Please measure the OD with a spectrophotometer at 260 nm and 280 nm. The OD 260 values should be in the range of 0.05 to 0.8 to give reproducible and reliable results. The OD 260/280 ratio should be about 1.8. Values lower than 1.6 and higher than 2.0 indicate contaminants in the sample that interfere with the determination of the concentration and might inhibit the sequencing reaction.

    If possible, we recommend measuring the ODs at 230 nm and 320 nm, too. A high value at OD 320 indicates a contaminant. This should be ideally 0.0. The OD 230/260 ratio should be lower than 0.6.

    We also recommend ensuring the quality of your DNA by running your sample on an agarose gel.

    Which purification method should I use?

    For plasmids, we recommend the use of commercially available plasmid mini scale preparation kits employing spin columns. From our experience, repeating the washing step will improve the quality of the DNA and therefore improve the sequencing results. Please do not send DNA prepared with alkaline lysis methods or with the boiling method (Holmes and Quigley, 1981) without column purification. For PCR products please use commercially available PCR purification spin column kits.

    Can I send my DNA samples in Tris-EDTA (TE)?

    No, please don't.
    EDTA binds bivalent cations such as Mg2+ that are essential for the Taq polymerase. Your DNA is stable in double distilled water or Tris-HCl at room temperature for several days or even longer if it is dried down.

    Should I submit my DNA samples cooled?

    This is not necessary; DNA is stable in water at room temperature for several days. Just send your samples either in Tris-HCl, distilled water or air dried. Please, do not use EDTA as this will inhibit the Taq polymerase.

    Can I send unpurified PCR products or clones?

    Yes, for all sequencing services we offer template preparation and PCR product purification as an additional service.

    Which E.coli strain should I use?

    Successful isolation of plasmid DNA is possible from most E.coli strains, though the strain which is used can have a significant influence on the quality of the purified DNA. Host strains such as DH10b, DH5 alpha, XL10 Gold and TOP10 normally result in high quality DNA in combination with many commercially available plasmid DNA isolation kits and are therefore ideal for the propagation of plasmids to be sequenced. Lower quality DNA is derived from strains producing large amounts of carbohydrates, which are released during lysis and inhibit enzyme activity. Examples are HB101 and its derivatives such as TG1 and the JM100 series. Also strains with medium or high levels of endonuclease activity like HB101, JM101 or BL21 generate DNA of lower quality, hence a proteinase K treatment should be considered.

    Do I need to clean up my PCR product if there is only one band visible?

    Yes, primers and dNTPs must be removed from the product. The primers would produce a mixed sequence (5% contamination with a primer results in unreadable mixed sequences!) and the dNTPs would interfere with the dNTP/ddNTP concentration in the sequencing reaction. We recommend purification by using commercially available PCR spin column kits. Alternatively we can perform the PCR product purification for you as additional service.

    I see unspecific bands in my PCR reaction. Do I need to gel purify my product?

    If you want to employ one of the PCR primers in the sequencing reaction you must elute the product of interest from an agarose gel. Otherwise, a mixed sequence will be produced as the primer is most likely to bind both the specific and unspecific products. If you employ a specific nested primer in the sequencing reaction, it might work. However, producing only one product in the PCR reaction is the best guarantee for a good sequence. In almost all cases, improving the PCR conditions (specific primer design, higher annealing temperature and/or lower primer concentration) helps to avoid unspecific products.

    Primers & More

    Which standard primers do you offer?

    80 different standard primers are available for your DNA sequencing order. for free Under "My samples & primers" you see the list of standard primers.

    Can I send my own primers for sequencing ?

    Yes of course. Just specify your enclosed primers in your sequencing order with the primer name. The primers should be sent in a solution and concentration specified in the respective "Sample Submission" pages. Please use a primer barcode to identify your primer.

    Can you synthesise a primer for me? How do I order the synthesis?

    Yes, we can synthesise your sequencing primer in our oligo production. Just specify your primer for synthesis in your sequencing order with the respective name and sequence. 

    How should I send my primers and how much primer do you need?

    Please find information about primer format, primer concentration and primer shipment information for each of our sequencing services in the respective "Sample Submission" tabs.

    Can I pay for primer synthesis using barcodes?

    The primer synthesis along with Eurofins sequencing services can be payed with prepaid barcodes.

    Technical Questions

    What are IUPAC bases? Which results will I receive?

    DNA base call identification is based on the nomenclature system issued by the International Union of Pure and Applied Chemistry (IUPAC). At positions of ambiguity, the following IUPAC codes are used:

    G/T = K C/T = Y A/C/G = V
    A/G = R A/C = M C/T/G/ = B
    G/C = S A/G/T = D A/C/G/T = N
    A/T = W A/C/T = H

    What are Q20 (Q30 / Q40) bases?

    Eurofins Genomics is using a quality base calling software which examines the peaks around each base call to assign a quality score (Q) to each base call. Quality scores (Q) range from 4 to about 60, with higher values corresponding to higher quality. The quality scores are logarithmically linked to error probabilities, as shown in the following table:

    Quality ScoreProbability of a wrong base callAccuracy of a base call
    Q 10 1 in 10 90 %
    Q 20 1 in 100 99 %
    Q 30 1 in 1.000 99.9 %
    Q 40 1 in 10.000 99.99 %
    Q 50 1 in 100.000 99.999 %

    Which sequencing method do you use?

    For all our Sanger Sequencing Services we are using the cycle sequencing technology (dideoxy chain termination / cycle sequencing) on ABI 3730XL sequencing machines.

    Could you explain the cycle sequencing technique?

    Cycle sequencing is a modification of the traditional Sanger sequencing method. The components are DNA, primer, heat resistant DNA polymerase, 4 dNTPs, 4 ddNTPs (dideoxy terminator nucleotides) fluorescently labelled with four different dyes and buffer containing Mg++ and K+. The single primer binds to the complementary DNA strand and is extended in a linear mode.
    This extension continues until by chance and depending on the complementary base a particular ddNTP is incorporated. Because of the latter's dideoxy-configuration the polymerase cannot add any other base to this fragment and the extension is terminated. Thus at the end of the selected number of cycles, numerous fragments with different lengths and one labelled nucleotide at the end are generated.

    Stoichiometric manipulation of the reaction components ensure that the fragments of every possible length starting from n+1 say 2000 bases are generated with n being the number of bases in the primer. The key difference between the traditional Sanger method and cycle sequencing is the employment of a thermo stable DNA polymerase. The advantage of using such a polymerase, is that the sequencing reaction can be repeated over and over again in the same tube by heating the mixture to denature the DNA and then allowing it to cool down to anneal the primers and polymerise new strands. Therefore less template DNA is needed than for conventional sequencing reactions.

    After a post sequencing reaction cleanup, the samples are electro kinetically injected into the array of 96-capillary sequencers. The negatively charged fragments migrate toward the anode by size, the smallest ones move fastest. Their tagged ddNTP terminators can be read as the fragment's base sequence. A laser beam excites these dye molecules as the fragments reach a detection window, producing fluorescent signals that are collected from all 96-capillaries at once, spectrally separated and focused onto a CCD (charge coupled device) camera. Sophisticated optical and electronic devices produce a colour readout that is translated with the help of sequence analysis software into a sequence.

    What is the quality report?

    The quality report is the trace file in *.pdf format in which the quality value of each single base is shown in colour code below each single peak. Different colours represent the four specified quality ranges.

    Are there special features regarding the standard DIN EN ISO 17025?

    Under the conditions listed below, only simplified test reports may be provided.

    Subject: Simplified test reports according to DIN EN ISO 170252018, (Section 7.8)

    Testing Laboratory (Accreditation): Eurofins Genomics Europe Applied Genomics GmbH (D-PL-13372, ) Eurofins Genomics Europe Sequencing GmbH (D-PL-17038)


    For accredited examinations at these two companies, test results may only be reported in simplified form, i. Requirements of the standard DIN EN ISO 17025: 2018 (section 7.8) are not fully applicable to this type of transfer of results.

    These results can therefore also be reported as short test reports, electronically generated result reports, Excel spreadsheets or as result files.

     

    If you have any questions, please contact the Customer Care Team.

    How can I view the .ab1 trace files

    There are many softwares on the market which you can use for testing or buying.

    For your convenience you can download and install our GATCViewer software for free.

    What does "DONE_QV_NOT_MET" mean?

    In order to ensure that the sequencing quality is not affected by a technical failure, an internal quality control is performed with each sequencing run. In addition to that, a sophisticated software is analysing each plate considering parameters like quality values (QV) and reading lengths.


    If you see "DONE_QV_NOT_MET" as a result of your sequencing reaction, it means that the internal quality control has passed, but some sample quality values have not been met. (e.g. sample or primer concentration or volume, sequence design or structure etc.).

    Whole Plasmid Sequencing

    How does whole plasmid sequencing compare to Sanger sequencing?

    There are pros and cons of every sequencing method. Sanger sequencing and Oxford Nanopore sequencing (ONT) are both methods for determining the sequence of nucleotides in a piece of DNA. Typically Sanger is consider the most accurate method for short-read sequencing and NGS is better for long-read sequencing.

    Overall, the choice between Sanger sequencing and ONT will depend on the specific needs of the application. Both methods have their strengths and limitations, and the appropriate method will depend on factors such as the length and quality of the DNA sample, the desired level of accuracy, and the cost and availability of the necessary equipment.

    What is the coverage?

    It really depends on the sample quality. We cannot guarantee the level of coverage at this time. A good sample submitted properly will typically yields hundreds or even thousands of sequencing reads. Consensus coverage depends on how many reads are full-length plasmids and how many, if any, degraded.

    A coverage exceeding approximately 20x indicates a highly accurate consensus sequence.

    A coverage below 20x can include inaccurate assembled plasmid sequences. The most common reasons for low quality coverage assemblies are listed in ‘Troubleshooting guide for failed samples’.

    Is there a minimum number of samples I must submit?

    Any number of samples is welcome. There are no minimums or limitations.

    Can you sequence my mixture of plasmids?

    You can send it and we can sequence it, but we cannot predict or promise the analysis outcome. The customer would take on the risk of these orders.

    Do you offer a prepaid solution for whole plasmid sequencing?

    Great news! Yes we do. All information about our prepaid solution can be found here >>

    Can I also sent amplicons and large insert DNA for the Whole Plasmid Sequencing service?

    Unfortunately not. Currently, we can only accept plasmids. However, we do offer a special service for amplicons and large DNA inserts, which is available for your use. Learn more >>

    Can I send my samples without the free barcode?

    Unfortunately not. This barcode is required for our internal lab processes and is essential in ensuring that we can process your samples as efficiently as possible. Thank you for your cooperation!

    Can I use my local dropbox to ship samples for Whole Plasmid Sequencing?

    Yes of course.

    If you don't know if there is a dropbox close by, use our dropbox location page to find out.Please click here >>

    Will you also deliver the FASTQ data?

    Yes, FASTQ files are delivered for every project.

    Troubleshooting guide for failed samples

    There are several reasons why your sample might have failed:

    1. The starting material did not consist of circular DNA.
      In our library preparation protocol, circular DNA is required as the starting material. If linear DNA is provided, it will result in sample fragmentation and subsequently lead to poor or no results.

    2. Insufficient DNA concentration in prepared samples.
      The primary reason for this issue is the use of a Nanodrop device to measure DNA concentration. We strongly recommend employing a Qubit or a similar method instead.

    3. Presence of mixed plasmid species and/or fragmented genomic DNA or fragmented plasmids within the samples.
      You may detect signs of this failure mode through a wide range of read lengths reported in the raw read length histogram.
    4. Contaminants in your samples like Ethanol. For more info please click here: https://community.nanoporetech.com/contaminants

     

    To interpret your results you can also have a look at our troubleshooting guide. Click here >>

     

     

    Which buffer should I use to send my samples?

    Please send your samples in nuclease-free water or elution buffer.

    Please do not use a buffer containing EDTA.

     

    Will you repeat sequencing of my sample if the sequencing fails?

    For each run, we conduct multiple quality control (QC) measurements to assess the success of the library preparation and sequencing. If all the measurements indicate satisfactory results, we will not reprocess samples that have failed.

    What is the turnaround time for whole plasmid sequencing?

    We will sequence your plasmids typically within 1 business day.

     

    For plasmids > 25 kb please except a turnaround time of up to 5 business days.

    How about addressing the errors or positions with low confidence that I discovered in a homopolymer region or at a Dam or Dcm methylation site?

    The prevalent error modes in Oxford Nanopore sequencing include deletions within homopolymer stretches, errors occurring at the central position of the Dcm methylation site CCTGG or CCAGG, and errors at the Dam methylation site GATC.

     

    So please handle these regions with special care.

    Can I also send ssDNA molecules for the Whole Plasmid Sequencing Service?

    Unfortunately not. The protocol used for the high-throughput Whole Plasmid Sequencing service does not allow single-stranded DNA.

    But of course we can sequence your ssDNA molecules with our custom workflow. More information can be found here >>

    Are contaminations between samples possible (index hopping or carry-over contamination)

    • In order to offer our competitively priced product, we pool different samples on flow cell runs and re-use flow cells by washing them between runs. Both procedures are industry standard and performed according to the manufacturer’s specifications.  
    • Barcoding and pooling samples on a single flow cell reduces cost and maximizes usage efficiency of the pores. However, nanopore sequencing has a higher error rate compared to “traditional” short-read next-generation sequencing, which can lead to misreadings in the barcode sequence and incorrect sample assignment/de-multiplexing at a rate of up to 0.05%. This issue is known as index hopping. 
    • The flow cell washing procedure is very effective with only up to 0.1% of any previously loaded sample contaminating a subsequent run (known as carry-over contamination), nevertheless you might experience individual contaminating reads within your raw data.
    • However, for both index hopping and carry-over it is important to note that a contamination of this level is unlikely to impact the final sequence assembly as several fine-tuned sequence cleaning and filtering steps are applied, provided your sample meets our quality and quantity standards and therefore yields sufficient numbers of high-quality plasmid reads. It is important to note, that the issue is most prominent in low coverage assemblies (see ‘What is the coverage?’).
    • In the case that customer samples do not adhere to our sample specifications, the samples are sequenced on the customer’s own risk, and we cannot assume any liability for potential damages caused.
    • If you’re concerned about contaminations and most importantly about reads from your samples appearing in other customer’s raw data, we offer the possibility to use our premium ONT services which include usage of a dedicated full flow cell for individual customers (learn more >>).

     

    What kind of purification kits can you recomment for Whole Plasmid Sequencing?

    Here are a few kits:

    VWR Plasmid Miniprep Kit II

    QIAGEN Plasmid Plus Midi Kit 

    peqGOLD Plasmid Miniprep Kit II

    ZymoPURE II Pure Midiprep Kit 

     

    For really large plasmids different kits are required. For example ZymoPUREII or NucleoBond.

    Production Site
    • Europe
    • America
    • India
    • Japan
    Eurofins Genomics
    • Terms & Conditions
    • Sitemap
    • Imprint
    • Privacy
    • Licenses
    • Cookie Settings
    Contact
    General Customer Support
    phone +49 7531 816068
    Toll free phone number for
    Europe: 00800 200 100 20
    support-eu@genomics.eurofinseu.com

    Eurofins Genomics Europe Shared Services GmbH
    Anzinger Str. 7a
    85560 Ebersberg
    Germany

    /p>

    2025 - Eurofins Genomics

    VEGA Beta