Abstract:
:An alternative molecular biology strategy is needed to characterize cholinephosphotransferase (CPT) gene because of the complexity of the problem associated with the solubilization of the membrane-bound enzyme without denaturation. We have synthesized five heterologous oligonucleotide probes based on the published yeast CPT gene sequence. Each probe (24 to 30 mers) was used as either forward or reverse flanking primers in combination with lambda gt11 primers to amplify a segment of DNA from a guinea pig liver 5'cDNA library by polymerase chain reaction (PCR). We detected several clones of varied size (0.1 kb to 2.2 kb) by subjecting the PCR products to 1.2% agarose gel electrophoresis. Southern blot of a 0.7 kb PCR product did hybridize with a 32P-labeled internal probe. Slot blot hybridization of guinea pig liver total RNA with the 32P-labeled 0.7 kb PCR product yielded positive transcripts with intensities proportional to the concentration of RNA. Furthermore, a 0.1 kb clone was sequenced and the observed sequence shared 96% homology with the yeast CPT gene sequence.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Das SK,Beg O,Mukherjee Sdoi
10.1006/bbrc.1997.7862subject
Has Abstractpub_date
1997-12-18 00:00:00pages
504-8issue
2eissn
0006-291Xissn
1090-2104pii
S0006-291X(97)97862-1journal_volume
241pub_type
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