Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
10
|
pubmed:dateCreated |
1981-7-20
|
pubmed:abstractText |
Ribonuclease P from the fission yeast Schizosaccharomyces pombe was partially purified using DEAE-cellulose and phosphocellulose column chromatography. The yeast RNase P enzyme cleaves Escherichia coli tRNATyr precursor to give tRNATyr containing its mature 5' end. The enzyme activity is inhibited after treatment with nucleases; this indicates the requirement of a nucleic acid component for activity. The enzyme purification was greatly facilitated by using a synthetically prepared radioactive ApApApCOH ligated to the 5'-terminal phosphate of E. coli tRNAfMet (ApApApCp-tRNA) substrate. (p denotes a [32P]phosphate group.) This substrate was cleaved by yeast RNase P to the mature tRNA and a tetranucleoside triphosphate ApApApCOH. The synthetic substrate allowed the utilization of a simple assay procedure measuring the trichloroacetic acid solubility of the ApApApC product, thus avoiding the more cumbersome gel electrophoric separation of reaction products.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Endonucleases,
http://linkedlifedata.com/resource/pubmed/chemical/Escherichia coli Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Micrococcal Nuclease,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Transfer,
http://linkedlifedata.com/resource/pubmed/chemical/Ribonuclease P,
http://linkedlifedata.com/resource/pubmed/chemical/Ribonucleases,
http://linkedlifedata.com/resource/pubmed/chemical/ribonuclease P, E coli
|
pubmed:status |
MEDLINE
|
pubmed:month |
May
|
pubmed:issn |
0021-9258
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
25
|
pubmed:volume |
256
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
5058-63
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:6262315-Ascomycota,
pubmed-meshheading:6262315-Base Sequence,
pubmed-meshheading:6262315-Endonucleases,
pubmed-meshheading:6262315-Escherichia coli Proteins,
pubmed-meshheading:6262315-Kinetics,
pubmed-meshheading:6262315-Micrococcal Nuclease,
pubmed-meshheading:6262315-RNA, Transfer,
pubmed-meshheading:6262315-Ribonuclease P,
pubmed-meshheading:6262315-Ribonucleases,
pubmed-meshheading:6262315-Schizosaccharomyces,
pubmed-meshheading:6262315-Substrate Specificity
|
pubmed:year |
1981
|
pubmed:articleTitle |
Partial purification of RNase P from Schizosaccharomyces pombe.
|
pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
|