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 Home > Resources > Libraries
   CHORI-256: Galago (Ottolemur garnetti) BAC Library   

Background information

The CHORI-256 Galago (Otolemur garnetti, male) BAC Library has been generated by Doriana Misceo and Dr. Baoli Zhu, in Pieter de Jong’s laboratory at BACPAC Resources, Children’s Hospital Oakland Research Institute. The library preparation followed the general cloning approach developed in our laboratory Osoegawa et al., 1998. Kidney tissue was obtained from a male galago provided by the Department of Cell & Developmental Biology, Vanderbilt Medical School. The frozen kidney was ground into a powder, cells embedded in 0.5% InCert agarose then proteins were removed by a detergent/proteinaseK treatment. The resulting agarose-embedded high molecular weight DNA was partially digested with a combination of EcoRI restriction enzyme and EcoRI methylase then size fractionated by pulsed-field gel electrophoresis. DNA fragments from the appropriate size fraction were cloned into the pTARBAC2.1 vector between the two EcoRI sites. The ligation products were transformed into DH10B (T1 resistant) electro-competent cells (Invitrogen). The library has been arrayed into 576, 384-well microtiter dishes and has subsequently been gridded onto 12, 22x22cm nylon high-density filters for screening by probe hybridization. Each hybridization membrane represents over 18,000 distinct BAC clones, stamped in duplicate. The BAC library construction was funded by a grant from the NIH (#HG01165-06).

Data for CHORI-256 Galago BAC Library:

Segment

1

2

All

Vector

pTARBAC2.1

pTARBAC2.1

pTARBAC2.1

Restriction Enzyme

EcoRI/EcoRI Methylase

EcoRI/EcoRI Methylase

EcoRI/EcoRI Methylase

DNA Source

kidney

kidney

kidney

Plate Numbers

1-288

289-576

1-576

Plate Count

288

288

576

Empty Wells

N/A

N/A

N/A

Non-Recombinant Clones

N/A

N/A

N/A

Non-Insert Clones

Approx. 221 (0.2%)

Approx. 221 (0.2%)

Approx. 885 (0.4%)

Recombinant Clones

110371

110371

220299

Average Insert Size

176 Kbp

176 Kbp

176 Kbp

Genomic Coverage

5X

5X

10X


Click here for legend of the previous table.

No clones were found to be non-recombinant after analysis of CHORI-256 using overgo probes specific for the puc19 fragment.

Data on the CHORI-256 clone insert size distribution is currently not available for this library and will be posted as soon as available.

The library is available for individual clone orders distributed as agar-stab cultures in a fee structure described on our website "Ordering & Pricing Information" .

The BAC library has been gridded onto 22x22cm positively charged nylon filters for hybridization screening purposes. Each filter contains 36,864 colonies which represents 18,432 independent clones spotted in duplicate in a 4x4 clone array. Clones can be identified through screening by purchasing "high-density colony" hybridization filters or by utilizing our "fee for service" "Library Screening Services" . For questions about clones and hybridization membranes, please contact BACPAC Resources (BACPACorders@chori.org).

Please direct questions concerning this library to either Pieter J. de Jong.

The library is available to academic users on a cost recover basis, reimbursement of duplication costs (labor & materials). Dishes can only be obtained per complete library or per segment of the library. Individual clones identified after screening can be obtained as stab cultures "Ordering & Pricing Information" .

Shipping will be done by Federal Express and charged to the recipients account number. With respect to the scheduling of shipments of arrayed library copies, we would like to make you aware of our policy for array distribution.

Content Posted: Sept. 30, 2003
Content Revised: Sept. 14, 2007

 

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