Source:http://linkedlifedata.com/resource/pubmed/id/10229580
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1999-7-16
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pubmed:databankReference | |
pubmed:abstractText |
Bacterial family C DNA polymerases (DNA pol IIIs), the major chromosomal replicative enzymes, have been provisionally classified based on primary sequences and domain structures into three classes: class I (Escherichia coli DNA pol C-type), class II (Bacillus subtilis DNA pol C-type), and class III (cyanobacterial DNA pol C-type), respectively. We have sequenced the structural gene encoding the DNA pol C catalytic subunit of the thermophilic bacterium Thermus aquaticus. This gene, designated the Taq DNA pol C gene, contains a 3660-bp open reading frame which specifies a polypeptide of molecular weight of 137,388 daltons. Comparative sequence analyses revealed that Taq DNA pol C is a class I family C DNA polymerase. The Taq DNA pol C is most closely related to the Deinococcus radiodurans DNA pol C. Although a phylogenetic tree based on the class I family C DNA pols is still in the provisional stage, some important conclusion can be drawn. First, the high-G+C and the low-G+C Gram-positive bacteria are not monophyletic. Second, the low-G+C Gram-positive bacteria contain multigenes of family C DNA pols (classes I and II). Third, the cyanobacterial family C DNA pol, classified as class III because it is encoded by a split gene, forms a group with the high-G+C Gram-positive bacteria.
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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/Archaeal Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Bacterial Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/DNA polymerase C,
http://linkedlifedata.com/resource/pubmed/chemical/Nucleotidyltransferases,
http://linkedlifedata.com/resource/pubmed/chemical/Taq Polymerase
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0022-2844
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
48
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
756-69
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:10229580-Amino Acid Sequence,
pubmed-meshheading:10229580-Archaea,
pubmed-meshheading:10229580-Archaeal Proteins,
pubmed-meshheading:10229580-Bacterial Proteins,
pubmed-meshheading:10229580-Molecular Sequence Data,
pubmed-meshheading:10229580-Nucleotidyltransferases,
pubmed-meshheading:10229580-Phylogeny,
pubmed-meshheading:10229580-Sequence Analysis, DNA,
pubmed-meshheading:10229580-Sequence Homology, Amino Acid,
pubmed-meshheading:10229580-Taq Polymerase,
pubmed-meshheading:10229580-Thermus
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pubmed:year |
1999
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pubmed:articleTitle |
DNA polymerase C of the thermophilic bacterium Thermus aquaticus: classification and phylogenetic analysis of the family C DNA polymerases.
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pubmed:affiliation |
Department of Microbiology and Immunology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, U.S. Gov't, P.H.S.
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