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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
22
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pubmed:dateCreated |
1983-1-7
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pubmed:abstractText |
A pyrimidine dimer-DNA glycosylase has been purified 20,000-fold from Micrococcus luteus. The enzyme is a single polypeptide chain with Mr = 18,000 that acts specifically on pyrimidine dimers, preferring those in double-stranded DNA to those in single-stranded DNA. The glycosylase cleaves the 5' residue of a pyrimidine dimer generating an apyrimidinic site and a mixed pyrimidine/pyrimidine nucleotide dimer. Under conditions of substrate excess, dimers containing a 5'-thymine are preferred to those with a 5'-cytosine residue. The glycosylase has an associated apyrimidinic/apurinic (AP) endonuclease that prefers apyrimidinic sites at the site of glycosylase action to either apurinic or apyrimidinic residues. This endonuclease is a Class I AP endonuclease in that it cleaves 3' to the AP site generating a 3'-deoxyribose moiety and a 5'-phosphate.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/DNA, Viral,
http://linkedlifedata.com/resource/pubmed/chemical/DNA Glycosylases,
http://linkedlifedata.com/resource/pubmed/chemical/N-Glycosyl Hydrolases,
http://linkedlifedata.com/resource/pubmed/chemical/Pyrimidine Dimers,
http://linkedlifedata.com/resource/pubmed/chemical/deoxyribopyrimidine endonucleosidase
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pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0021-9258
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
25
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pubmed:volume |
257
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
13465-74
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:7142160-DNA, Viral,
pubmed-meshheading:7142160-DNA Glycosylases,
pubmed-meshheading:7142160-DNA Repair,
pubmed-meshheading:7142160-Kinetics,
pubmed-meshheading:7142160-Micrococcus,
pubmed-meshheading:7142160-Molecular Weight,
pubmed-meshheading:7142160-N-Glycosyl Hydrolases,
pubmed-meshheading:7142160-Pyrimidine Dimers,
pubmed-meshheading:7142160-Substrate Specificity,
pubmed-meshheading:7142160-Ultraviolet Rays
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pubmed:year |
1982
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pubmed:articleTitle |
Enzymatic repair of pyrimidine dimer-containing DNA. A 5' dimer DNA glycosylase: 3'-apyrimidinic endonuclease mechanism from Micrococcus luteus.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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