Molecular Cloning Fourth Edition, A Laboratory Manual, by Michael R. Green and Joseph Sambrook

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Verification of Cointegrates and Selection of Resolved BAC Clones

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Successful modification of the BAC is confirmed in two separate PCRs. The first reaction (5 cointegrate PCR) uses a forward 5 cointegrate primer (a sequence located upstream of the 5 end of the A-box) and a reverse 3 primer on the vector (175PA50AT) or within the reporter sequence or mutated region as appropriate. The second reaction (3 cointegrate PCR) uses a forward 5 primer on the recA gene (RecA1300S) and a reverse 3 cointegrate primer (a sequence located downstream from the 3 end of the B-box). Those colonies shown to be positive in PCR analysis are further tested for sensitivity to UV light. After the resolution, colonies that have lost the excised recombination vector including sacB and recA genes become UV light sensitive.


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(Limited time special offer.) Molecular Cloning Fourth Edition, A Laboratory Manual, by Michael R. Green and Joseph Sambrook
Molecular Cloning Fourth Edition, A Laboratory Manual, by Michael R. Green and Joseph Sambrook

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