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| PBID | Uniprot | Name | Gene | Alternative | Organism | Uniprot Description |
| PB0232 | P02671 | Fibrinogen alpha chain | FGA | Fib2 | Homo_sapiens | Cleaved by the protease thrombin to yield monomers which, together with fibrinogen beta (FGB) and fibrinogen gamma (FGG), polymerize to form an insoluble fibrin matrix. Fibrin has a major function in hemostasis as one of the primary components of blood clots. In addition, functions during the early stages of wound repair to stabilize the lesion and guide cell migration during re-epithelialization. Was originally thought to be essential for platelet aggregation, based on in vitro studies using anticoagulated blood. However, subsequent studies have shown that it is not absolutely required for thrombus formation in vivo. Enhances expression of SELP in activated platelets via an ITGB3-dependent pathway. Maternal fibrinogen is essential for successful pregnancy. Fibrin deposition is also associated with infection, where it protects against IFNG-mediated hemorrhage. May also facilitate the immune response via both innate and T-cell mediated pathways. |
| Domains | Gene Ontology |
| PF00147 (Fibrinogen_C) PF08702 (Fib_alpha) PF12160 (Fibrinogen_aC) |
GO:0005102 (contributes to) signaling receptor binding
GO:0050839 (contributes to) cell adhesion molecule binding GO:0005198 (enables) structural molecule activity GO:0005201 (enables) extracellular matrix structural constituent GO:0005515 (enables) protein binding GO:0046872 (enables) metal ion binding GO:0002250 (involved in) adaptive immune response GO:0002376 (involved in) immune system process GO:0007160 (involved in) cell-matrix adhesion GO:0007596 (involved in) blood coagulation GO:0007599 (involved in) hemostasis GO:0030168 (involved in) platelet activation GO:0031639 (involved in) plasminogen activation GO:0034116 (involved in) positive regulation of heterotypic cell-cell adhesion GO:0042730 (involved in) fibrinolysis GO:0043152 (involved in) induction of bacterial agglutination GO:0045087 (involved in) innate immune response GO:0045907 (involved in) positive regulation of vasoconstriction GO:0045921 (involved in) positive regulation of exocytosis GO:0050714 (involved in) positive regulation of protein secretion GO:0051258 (involved in) protein polymerization GO:0051592 (involved in) response to calcium ion GO:0065003 (involved in) protein-containing complex assembly GO:0070374 (involved in) positive regulation of ERK1 and ERK2 cascade GO:0070527 (involved in) platelet aggregation GO:0072377 (involved in) blood coagulation, common pathway GO:0072378 (involved in) blood coagulation, fibrin clot formation GO:0090277 (involved in) positive regulation of peptide hormone secretion GO:1900026 (involved in) positive regulation of substrate adhesion-dependent cell spreading GO:1902042 (involved in) negative regulation of extrinsic apoptotic signaling pathway via death domain receptors GO:2000352 (involved in) negative regulation of endothelial cell apoptotic process GO:0005576 (located in) extracellular region GO:0005615 (located in) extracellular space GO:0005783 (located in) endoplasmic reticulum GO:0005788 (located in) endoplasmic reticulum lumen GO:0005886 (located in) plasma membrane GO:0009897 (located in) external side of plasma membrane GO:0009986 (located in) cell surface GO:0031091 (located in) platelet alpha granule GO:0031093 (located in) platelet alpha granule lumen GO:0062023 (located in) collagen-containing extracellular matrix GO:0070062 (located in) extracellular exosome GO:0072562 (located in) blood microparticle GO:0110165 (located in) cellular anatomical entity GO:1903561 (located in) extracellular vesicle GO:0005577 (part of) fibrinogen complex |
| External Links | Description |
| Intact | Open source database system and analysis tools for molecular interaction data. |
| Protein Atlas | An open access resource for human proteins |
| InterPro (new pfam) | InterPro provides functional analysis of proteins by classifying them into families and predicting domains and important sites. |