Search results
Results from the WOW.Com Content Network
Thrombin (Factor IIa) (EC 3.4.21.5, fibrose, thrombase, thrombofort, topical, thrombin-C, tropostasin, activated blood-coagulation factor II, E thrombin, beta-thrombin, gamma-thrombin) is a serine protease, that converts fibrinogen into strands of insoluble fibrin, as well as catalyzing many other coagulation-related reactions.
This "tenase" complex activates more Factor X, which in turn forms new prothrombinase complexes with Factor Va. Factor Xa is the prime component of the prothrombinase complex which converts large amounts of prothrombin—the "thrombin burst". Each molecule of Factor Xa can generate 1000 molecules of thrombin.
Alexander Schmidt suggested that the conversion from fibrinogen to fibrin is the result of an enzymatic process, and labeled the hypothetical enzyme "thrombin" and its precursor "prothrombin". [ 59 ] [ 60 ] Arthus discovered in 1890 that calcium was essential in coagulation.
To initiate the transcription process in a cell's nucleus, DNA double helices are unwound and hydrogen bonds connecting compatible nucleic acids of DNA are broken to produce two unconnected single DNA strands. [1] One strand of the DNA template is used for transcription of the single-stranded primary transcript mRNA.
The prothrombinase complex catalyzes the conversion of prothrombin (factor II), an inactive zymogen, to thrombin (factor IIa), an active serine protease. The activation of thrombin is a critical reaction in the coagulation cascade , which functions to regulate hemostasis in the body.
2152 14066 Ensembl ENSG00000117525 ENSMUSG00000028128 UniProt P13726 P20352 RefSeq (mRNA) NM_001993 NM_001178096 NM_010171 RefSeq (protein) NP_001171567 NP_001984 NP_034301 Location (UCSC) Chr 1: 94.53 – 94.54 Mb Chr 3: 121.52 – 121.53 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Tissue factor, also called platelet tissue factor or Coagulation factor III, is a protein present ...
These platelets have thrombin receptors on their surfaces that bind serum thrombin molecules, [1] which in turn convert soluble fibrinogen in the serum into fibrin at the wound site. Fibrin forms long strands of tough insoluble protein that are bound to the platelets.
Factor XI (FXI) is produced by the liver and circulates as a homo-dimer in its inactive form. [9] The plasma half-life of FXI is approximately 52 hours. The zymogen factor is activated into factor XIa by factor XIIa (FXIIa), thrombin, and FXIa itself; due to its activation by FXIIa, FXI is a member of the "contact pathway" (which includes HMWK, prekallikrein, factor XII, factor XI, and factor IX).