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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2000-6-26
pubmed:abstractText
Isolation of the terminal portions of genomic DNA cloned in bacterial artificial chromosomes (BACs) is an important step in map-based cloning, and several methods have been developed. Here, we present a new method based on double-restriction-enzyme digestion followed by anchored PCR. BAC DNA was digested with two enzymes: NotI and one of four enzymes (EcoRV, HpaI, StuI, or XmnI) that produce blunt termini. After dephosphorylation, these digestions were ligated to NotI- and EcoRV-digested pMSK, a new cloning vector developed in this work that is derived from pBluescript SK(+). PCR products representing the left- and right-terminal sequences of BAC inserts were obtained using a primer complementary to pMSK and a primer complementary to sequences in either the left arm or the right arm of the BAC vector pBeloBAC11. We have tested this method with 15 different BAC clones, and PCR products representing both the left- and right-terminal sequences have been obtained from all 15 BAC clones. This method is simple, fast, reproducible, and uses the same set of primers for any restriction enzyme used. With some modifications, it can also be used for isolating the terminal portions of genomic DNA cloned in yeast artificial chromosomes and P1-derived artificial chromosomes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0831-2796
pubmed:author
pubmed:issnType
Print
pubmed:volume
43
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
412-5
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Isolation of large terminal sequences of BAC inserts based on double-restriction-enzyme digestion followed by anchored PCR.
pubmed:affiliation
Dept. of Plant Pathology and Microbiology, Texas Agricultural Experiment Station, The Texas A & M University System, Weslaco 78596, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't