Fibrinogen: Difference between revisions
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<StructureSection load='1n73' size='350' side='right' scene='' caption='Crystal structure of glycosylated fibrinogen fragment D. Subunit α (green and yellow), β (green and magenta), γ (pink and cyan) complex with the peptide ligand Gly-His-Arg-Pro-amide (red, wheat, blue, black) and Ca+2 ion (PDB code [[1n73]]) '> | <StructureSection load='1n73' size='350' side='right' scene='' caption='Crystal structure of glycosylated fibrinogen fragment D. Subunit α (green and yellow), β (green and magenta), γ (pink and cyan) complex with the peptide ligand Gly-His-Arg-Pro-amide (red, wheat, blue, black) and Ca+2 ion (PDB code [[1n73]]) '> | ||
== Function == | |||
'''Fibrinogen''' is a glycoprotein found in the blood that is converted into fibrin during blood coagulation. Fibrinogen is cleaved by another protein, [[thrombin]], exposing knobs A and B to form fibrin. <ref>PMID:16689770</ref> It is this fibrin that forms clots to prevent excessive bleeding from wounds sustained. Clotting factors, like factor XIII, are often linked to fibrin. <ref>PMID:18673233</ref> | '''Fibrinogen''' is a glycoprotein found in the blood that is converted into fibrin during blood coagulation. Fibrinogen is cleaved by another protein, [[thrombin]], exposing knobs A and B to form fibrin. <ref>PMID:16689770</ref> It is this fibrin that forms clots to prevent excessive bleeding from wounds sustained. Clotting factors, like factor XIII, are often linked to fibrin. <ref>PMID:18673233</ref> | ||
== Structural insights == | |||
Fibrinogen is composed of 2 copies each of 3 non-identical chains α, β, γ (<scene name='Fibrinogen/Fba/1'>Fba</scene>, <scene name='Fibrinogen/Fbb/1'>Fbb</scene>, <scene name='Fibrinogen/Fbg/1'>Fbg</scene>). | Fibrinogen is composed of 2 copies each of 3 non-identical chains α, β, γ (<scene name='Fibrinogen/Fba/1'>Fba</scene>, <scene name='Fibrinogen/Fbb/1'>Fbb</scene>, <scene name='Fibrinogen/Fbg/1'>Fbg</scene>). | ||
</StructureSection> | </StructureSection> | ||
Revision as of 23:41, 21 January 2016
FunctionFibrinogen is a glycoprotein found in the blood that is converted into fibrin during blood coagulation. Fibrinogen is cleaved by another protein, thrombin, exposing knobs A and B to form fibrin. [1] It is this fibrin that forms clots to prevent excessive bleeding from wounds sustained. Clotting factors, like factor XIII, are often linked to fibrin. [2] Structural insightsFibrinogen is composed of 2 copies each of 3 non-identical chains α, β, γ (, , ). |
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3D Structure of Fibrinogen3D Structure of Fibrinogen
Updated on 21-January-2016
ReferencesReferences
- ↑ Betts L, Merenbloom BK, Lord ST. The structure of fibrinogen fragment D with the 'A' knob peptide GPRVVE. J Thromb Haemost. 2006 May;4(5):1139-41. PMID:16689770 doi:10.1111/j.1538-7836.2006.01902.x
- ↑ Muszbek L, Bagoly Z, Bereczky Z, Katona E. The involvement of blood coagulation factor XIII in fibrinolysis and thrombosis. Cardiovasc Hematol Agents Med Chem. 2008 Jul;6(3):190-205. PMID:18673233