A coagulation factor XII that is encoded in the genome of human. [PRO:DNx, UniProtKB:P00748]
EC 3.4.21.38;
Hageman factor;
HAF
| Timeframe | Studies on this Protein(%) | All Drugs % |
|---|---|---|
| pre-1990 | 0 (0.00) | 18.7374 |
| 1990's | 0 (0.00) | 18.2507 |
| 2000's | 4 (66.67) | 29.6817 |
| 2010's | 0 (0.00) | 24.3611 |
| 2020's | 2 (33.33) | 2.80 |
This protein enables 4 target(s):
| Target | Category | Definition |
|---|---|---|
| serine-type endopeptidase activity | molecular function | Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine). [GOC:mah, https://www.ebi.ac.uk/merops/about/glossary.shtml#CATTYPE] |
| calcium ion binding | molecular function | Binding to a calcium ion (Ca2+). [GOC:ai] |
| protein binding | molecular function | Binding to a protein. [GOC:go_curators] |
| misfolded protein binding | molecular function | Binding to a misfolded protein. [GOC:ai] |
This protein is located in 5 target(s):
| Target | Category | Definition |
|---|---|---|
| extracellular region | cellular component | The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite. [GOC:go_curators] |
| extracellular space | cellular component | That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid. [ISBN:0198547684] |
| plasma membrane | cellular component | The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins. [ISBN:0716731363] |
| collagen-containing extracellular matrix | cellular component | An extracellular matrix consisting mainly of proteins (especially collagen) and glycosaminoglycans (mostly as proteoglycans) that provides not only essential physical scaffolding for the cellular constituents but can also initiate crucial biochemical and biomechanical cues required for tissue morphogenesis, differentiation and homeostasis. The components are secreted by cells in the vicinity and form a sheet underlying or overlying cells such as endothelial and epithelial cells. [GOC:BHF, GOC:rph, PMID:21123617] |
| extracellular exosome | cellular component | A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm. [GOC:BHF, GOC:mah, GOC:vesicles, PMID:15908444, PMID:17641064, PMID:19442504, PMID:19498381, PMID:22418571, PMID:24009894] |
This protein is active in 2 target(s):
| Target | Category | Definition |
|---|---|---|
| extracellular space | cellular component | That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid. [ISBN:0198547684] |
| rough endoplasmic reticulum | cellular component | The rough (or granular) endoplasmic reticulum (ER) has ribosomes adhering to the outer surface; the ribosomes are the site of translation of the mRNA for those proteins which are either to be retained within the cisternae (ER-resident proteins), the proteins of the lysosomes, or the proteins destined for export from the cell. Glycoproteins undergo their initial glycosylation within the cisternae. [ISBN:0198506732] |
This protein is involved in 13 target(s):
| Target | Category | Definition |
|---|---|---|
| plasma kallikrein-kinin cascade | biological process | A series of reactions that takes place outside the cell occurring in response to tissue damage and initiated within blood plasma by the action of activated Factor XII (Hageman Factor) on prekallikrein to convert it to plasma kallikrein, and the subsequent reaction of plasma kallikrein with high molecular weight kininogen. The ultimate product of the plasma kallikrein-kinin cascade is bradykinin, an agent known to induce smooth muscle contraction, vasoconstriction, and increased vascular permeability. [GOC:add, ISBN:0721601871, PMID:11842287, PMID:14501145] |
| Factor XII activation | biological process | Any process that activates Factor XII (Hageman factor). Factor XII is a protein synthesized by the liver that circulates in an inactive form until it encounters collagen or basement membrane or activated platelets (as occurs at the site of endothelial injury). Factor XII then undergoes a conformational change (becoming factor XIIa), exposing an active serine center that can subsequently cleave protein substrates and activate a variety of mediator systems. Factor XII is a participant in the clotting cascade as well as the kinin cascade. [GOC:jal, ISBN:0721601871] |
| blood coagulation, intrinsic pathway | biological process | A protein activation cascade that contributes to blood coagulation and consists of the interactions among high molecular weight kininogen, prekallikrein, and factor XII that lead to the activation of clotting factor X. [GOC:add, GOC:mah, GOC:pde] |
| positive regulation of plasminogen activation | biological process | Any process that increases the rate, frequency or extent of plasminogen activation. Plasminogen activation is the process in which plasminogen is processed to plasmin. [GOC:BHF, GOC:dph, GOC:tb] |
| protein processing | biological process | Any protein maturation process achieved by the cleavage of a peptide bond or bonds within a protein. Protein maturation is the process leading to the attainment of the full functional capacity of a protein. [GOC:curators, GOC:jl, GOC:jsg] |
| protein autoprocessing | biological process | Processing which a protein carries out itself. This involves actions such as the autolytic removal of residues to generate the mature form of the protein. [GOC:ai, PMID:9335337] |
| positive regulation of blood coagulation | biological process | Any process that activates or increases the frequency, rate or extent of blood coagulation. [GOC:mah] |
| zymogen activation | biological process | The proteolytic processing of an inactive enzyme to an active form. [GOC:hjd] |
| fibrinolysis | biological process | A process that solubilizes fibrin in the bloodstream of a multicellular organism, chiefly by the proteolytic action of plasmin. [GOC:jl, PMID:15842654] |
| innate immune response | biological process | Innate immune responses are defense responses mediated by germline encoded components that directly recognize components of potential pathogens. [GO_REF:0000022, GOC:add, GOC:ebc, GOC:mtg_sensu] |
| response to misfolded protein | biological process | Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a misfolded protein stimulus. [GOC:go_curators] |
| positive regulation of fibrinolysis | biological process | Any process that activates, maintains or increases the frequency, rate or extent of fibrinolysis, an ongoing process that solubilizes fibrin, resulting in the removal of small blood clots. [GOC:ai] |
| blood coagulation | biological process | The sequential process in which the multiple coagulation factors of the blood interact, ultimately resulting in the formation of an insoluble fibrin clot; it may be divided into three stages: stage 1, the formation of intrinsic and extrinsic prothrombin converting principle; stage 2, the formation of thrombin; stage 3, the formation of stable fibrin polymers. [PMID:30700128] |