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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1992-12-3
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pubmed:abstractText |
The homology between antithrombin III (AT-III) of mouse, of man, and that of other species was investigated. Preliminary experiments showed that mouse AT-III inhibited human alpha-thrombin efficiently (second order rate constant [K2nd] 5.8 x 10(3) M-1 s-1) as compared to human AT-III (K2nd 6.7 x 10(3) M-1), but was not recognized on immunoblots by antibodies that recognized both human and rabbit AT-III. In order to compare AT-III from different species at the molecular level, a cDNA clone for murine AT-III was isolated from a lambda ZAP mouse liver cDNA library on the basis of hybridization to a rabbit AT-III cDNA probe. The 1509 bp murine AT-III cDNA consists of a 1398 bp open reading frame, preceded by a 15 bp 5' untranslated region, followed by a 75 bp 3' untranslated region. The deduced primary protein structure consists of a 32 amino acid signal sequence, with a mature portion of 433 residues. Mature murine AT-III is 89% identical to its human counterpart, 86% identical to bovine AT-III, and 82% identical to that of the rabbit. Constructs lacking the nucleotides encoding the signal sequence were engineered and expressed in a cell-free system. The resulting 47 kDa non-glycosylated translation product was capable of being cleaved by human alpha-thrombin, of forming SDS-stable complexes with the protease, and of binding to immobilized heparin. Isolation of the murine AT-III cDNA will make feasible molecularly defined experiments with murine AT-III in the mouse system.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0340-6245
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
7
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pubmed:volume |
68
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
291-6
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1440494-Amino Acid Sequence,
pubmed-meshheading:1440494-Animals,
pubmed-meshheading:1440494-Antithrombin III,
pubmed-meshheading:1440494-Base Sequence,
pubmed-meshheading:1440494-Cell-Free System,
pubmed-meshheading:1440494-Cloning, Molecular,
pubmed-meshheading:1440494-DNA,
pubmed-meshheading:1440494-Gene Library,
pubmed-meshheading:1440494-Mice,
pubmed-meshheading:1440494-Mice, Inbred CBA,
pubmed-meshheading:1440494-Mice, Transgenic,
pubmed-meshheading:1440494-Molecular Sequence Data,
pubmed-meshheading:1440494-Plasmids,
pubmed-meshheading:1440494-Protein Biosynthesis,
pubmed-meshheading:1440494-Sequence Homology, Amino Acid,
pubmed-meshheading:1440494-Species Specificity,
pubmed-meshheading:1440494-Transcription, Genetic
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pubmed:year |
1992
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pubmed:articleTitle |
Molecular cloning and cell-free expression of mouse antithrombin III.
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pubmed:affiliation |
Canadian Red Cross Society Blood Transfusion Service, McMaster University, Hamilton, Ontario.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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