ID:ANT3_HUMAN DESCRIPTION: RecName: Full=Antithrombin-III; Short=ATIII; AltName: Full=Serpin C1; Flags: Precursor; FUNCTION: Most important serine protease inhibitor in plasma that regulates the blood coagulation cascade. AT-III inhibits thrombin, matriptase-3/TMPRSS7, as well as factors IXa, Xa and XIa. Its inhibitory activity is greatly enhanced in the presence of heparin. SUBUNIT: Forms protease inhibiting heterodimer with TMPRSS7. SUBCELLULAR LOCATION: Secreted, extracellular space. TISSUE SPECIFICITY: Found in plasma. PTM: Phosphorylation sites are present in the extracellular medium. MASS SPECTROMETRY: Mass=57863; Method=Electrospray; Range=33-464; Source=PubMed:7734359; MASS SPECTROMETRY: Mass=57911; Method=Electrospray; Range=33-464; Note=Variant Thr-414; Source=PubMed:7734359; DISEASE: Defects in SERPINC1 are the cause of antithrombin III deficiency (AT3D) [MIM:613118]. AT3D is an important risk factor for hereditary thrombophilia, a hemostatic disorder characterized by a tendency to recurrent thrombosis. AT3D is classified into 4 types. Type I: characterized by a 50% decrease in antigenic and functional levels. Type II: has defects affecting the thrombin- binding domain. Type III: alteration of the heparin-binding domain. Plasma AT-III antigen levels are normal in type II and III. Type IV: consists of miscellaneous group of unclassifiable mutations. SIMILARITY: Belongs to the serpin family. WEB RESOURCE: Name=Wikipedia; Note=Antithrombin entry; URL="http://en.wikipedia.org/wiki/Antithrombin"; WEB RESOURCE: Name=Antithrombin mutation database; URL="http://www1.imperial.ac.uk/medicine/about/divisions/is/haemo/coag/antithrombin/"; WEB RESOURCE: Name=GeneReviews; URL="http://www.ncbi.nlm.nih.gov/sites/GeneTests/lab/gene/SERPINC1"; WEB RESOURCE: Name=SeattleSNPs; URL="http://pga.gs.washington.edu/data/serpinc1/"; WEB RESOURCE: Name=SHMPD; Note=The Singapore human mutation and polymorphism database; URL="http://shmpd.bii.a-star.edu.sg/gene.php?genestart=A&genename=SERPINC1";
The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.
ModBase Predicted Comparative 3D Structure on P01008
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Orthologous Genes in Other Species
Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.