RPCI - 13 Female Human BAC Library


The RPCI-13 Human Female BAC Library was constructed using improved cloning techniques developed by Kazutoyo Osoegawa.  The library was generated by Baohui Zhao in our laboratory.  Construction was funded by a grant from the National Human Genome Research Institute (NHGRI, NIH) (#1R01RG01165-03).  The library was generated according to the new NHGRI/DOE "Guidance on Human Subjects in Large-Scale DNA Sequencing".

Female blood was obtained via a double-blind selection protocol.  Female blood DNA was isolated form one randomly chosen donor (out of 10 female donors) and partially digested with a combination of EcoRI and EcoRI Methylase for library segments 1&2 or either MboI or DpnII for library segments 3&4.  Size selected DNA was cloned into the pBACe3.6 vector between the EcoRI sites for library segments 1&2 or the BamHI sites for library segments 3&4.  The ligation products were transformed into DH10B electrocompetent cells (BRL Life Technologies).  The library has been arrayed into 384-well microtiter dishes and also gridded onto 22x22cm nylon high density filters for screening by probe hybridization.

 

The RPCI-13 Female Human BAC Library :

Segment Cloning Vector Cloning Enzyme DNA Plate Numbers Total Plates Total Clones Empty Wells (Total)
1 pBACe3.6 EcoRI Female 1-240 240 89,284 2,326
2 pBACe3.6 EcoRI Female 241-480 240 88,770 2,240
3 pBACe3.6 Mbol/Dpnll Female 481-768 288 107,815 1,227
4 pBACe3.6 Dpnll Female 769-1056 288 108,811 1,121
Total Library       1-1056 1056 394,680 6,914

 

Segment

Empty Wells (%)

Non-Recombinant Clones (Total)

Non-Recombinant Clones (%)

Average Insert Size

Genomic Coverage

1 2.5 approx. 550 0.6 182 Kbp 5.4X
2 2.4 approx. 1,150 1.3 192 Kbp 5.7X
3 1.1 approx. 1,550 1.4 149 Kbp 5.3X
4 1.1 approx. 660 0.6 149 Kbp 5.4X
Total Library 1.7 approx. 3,910 1.0 166 Kbp 21.8X

click here for a legend of the previous tables.

The average insert size has been determined by Pulsed Field Gel Electrophoresis analysis of clones randomly chosen form plates from each segment.