cDNA
Library Construction |
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cDNA Library Construction
Bionexus offer the following custom cDNA library construction
services from nanogram quantities of mRNA (i.e. laser capture micro dissected
samples). In general, PCR based procedures are avoided to prevent PCR related
anomalies. Libraries are prepared in the vector of the customers choice
with over 90-95%
recombination efficiency.
Regular cDNA Library
- Starting with small quantities of mRNA (few nanograms!)
- Uni-directional or Non-directional
- >107 primary clones
- Average insert size >2.0 kb
- Turnaround time 2-4 weeks
Subtracted cDNA Library
High quality subtracted cDNA libraries for the identification of differentially
expressed genes.
- No PCR based subtraction (PCR amplification and restriction enzyme digestion
techniques result
into non-specific amplifications and smaller inserts)
- Q.C. by virtual northern blot analysis, library screening and PCR
- >2x106 primary clones
- Average insert size ~1.8kb
- Turnaround time 4-6 weeks
Normalized cDNA Library
The normalization process removes the redundant and multiple copied genes, such
as ribosomal and other house-keeping genes. This results in the equal representation
of low and high copy genes in the library.
- Both regular and normalized libraries (N0, N1, N2
) are provided
- Q.C. by virtual northern blot analysis, library screening, PCR and sequencing
- >106 primary clones
- < 90-95% recombinants
- Turnaround time 6-8 weeks
Full-length cDNA Library
The full length cDNA libraries are constructed by selectively capturing full-length
mRNA followed by synthesis of first and second strands.
- 1x107 primary clones
- >90-95% recombinants
- >60-70% full-length genes
- Q.C. by sequencing
- Turnaround time 6-8 weeks
Clones from all the libraries can be arrayed on nylon
membranes.
All communications for this Service will be held in the strictest confidence.
Contact Bionexus for a price
quotation and more information today.