DNA Sequencing Service
We offer a fast and reliable service, using ABI capillary sequencers, at competitive prices:
DNA: PCR, Plasmid, BAC/PAC/Cosmid
Colonies: Plasmid, BAC/PAC/Cosmid
Quality: service up to 900 bp (500 bp - PHRED 20 guaranteed, dependent upon concentration and quality of template and primers provided)
Turnover time: 2 working days. Submit samples till 2pm on Mondays or Wednesdays and we will email you results during following Wednesdays or Fridays respectively.
Results are provided in any of the following formats: ab1- trace, FASTA, text, PHRED-trace or PHRED generated . Ab1 files containing sequencing traces can be opened with Chromas - please download it here: http://www.technelysium.com.au/chromas.html.
Price: £10 for sequencing of purified DNA; £15 for sequencing of DNA from colonies
Primers: order specific primers (add £10/primer) or enclose your own: alternatively, use standard vector primers for free
Submission of samples for DNA sequencing:
Step 1: Contact details
Step 3: Fill in DNA Samples Submission Form and enclose it with samples or send by email to sales@york-bio.com.
- DNA (air-dried, or in 5 mM Tris-Cl pH 8-9) must be submitted in 96-well PCR plates, or 0.2 ml individual tubes or strips, labelled with name or code of template. A picture of purified plasmid or PCR product together with reference DNA (quantified DNA ladder) with legend is required for quality and quantity evaluation. Please enclose this with the samples.
- Custom primers
must be submitted in coloured 0.2 ml tubes. Standard primers are available free of charge. Non-standard sequencing primers can be synthesised at cost £10. Customers provide the primer sequence or authorise us to do primer design (free of charge).- Colonies
must be submitted in 0.2 ml individual tubes or strips, or 96-well PCR plates in freezing broth (LB, containing 20% glycerol) containing antibiotic. Simply inoculate a toothpicked colony into 100 µl of broth in sterile conditions.- Shipment: send your samples at ambient temperature in a zip-lock bag inside bubble-wrapped envelopes to Yorkshire Bioscience at ambient temperature with First Class Royal Mail or Express Courier.
- The following minimum volumes and concentrations are required:
Template
Conc., ng/µl
Min. vol, µl
Standard reaction count
Volume per extra reaction, µl
DNA, plasmid
100-150
20
5
3
DNA, PCR product
2-5 per every 100 bp
20
5
3
DNA, BAC/PAC/cosmid
> 500
20
5
3
Colony, plasmid
n/a
100
n/a
n/a
Colony, BAC/PAC/cosmid
n/a
100
n/a
n/a
Primer
1.5 pmol
20
10
1