| molecular function |
|---|
| | GO:0032190 | | acrosin binding | | Interacting selectively and non-covalently with acrosin, a protein that is found in the acrosomes of sperm and possesses protease and carbohydrate binding activities. |
| | GO:0005539 | | glycosaminoglycan binding | | Interacting selectively and non-covalently with any glycan (polysaccharide) containing a substantial proportion of aminomonosaccharide residues. |
| | GO:0008201 | | heparin binding | | Interacting selectively and non-covalently with heparin, any member of a group of glycosaminoglycans found mainly as an intracellular component of mast cells and which consist predominantly of alternating alpha-(1->4)-linked D-galactose and N-acetyl-D-glucosamine-6-sulfate residues. |
| | GO:0030414 | | peptidase inhibitor activity | | Stops, prevents or reduces the activity of a peptidase, any enzyme that catalyzes the hydrolysis peptide bonds. |
| | GO:0031210 | | phosphatidylcholine binding | | Interacting selectively and non-covalently with phosphatidylcholine, a class of glycophospholipids in which a phosphatidyl group is esterified to the hydroxyl group of choline. |
| | GO:0002020 | | protease binding | | Interacting selectively and non-covalently with any protease or peptidase. |
| | GO:0005515 | | protein binding | | Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules). |
| | GO:0001972 | | retinoic acid binding | | Interacting selectively and non-covalently with retinoic acid, 3,7-dimethyl-9-(2,6,-trimethyl-1-cyclohexen-1-yl)-2,4,6,8-nonatetraenoic acid. |
| | GO:0004867 | | serine-type endopeptidase inhibitor activity | | Stops, prevents or reduces the activity of serine-type endopeptidases, enzymes that catalyze the hydrolysis of nonterminal peptide bonds in a polypeptide chain; a serine residue (and a histidine residue) are at the active center of the enzyme. |
| biological process |
|---|
| | GO:0007596 | | blood coagulation | | 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. |
| | GO:0007342 | | fusion of sperm to egg plasma membrane | | The binding and fusion of a sperm, having penetrated the zona pellucida, with the plasma membrane of the oocyte. Binding occurs at the posterior (post-acrosomal) region of the sperm head. |
| | GO:0006869 | | lipid transport | | The directed movement of lipids into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. Lipids are compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent. |
| | GO:0010951 | | negative regulation of endopeptidase activity | | Any process that decreases the frequency, rate or extent of endopeptidase activity, the endohydrolysis of peptide bonds within proteins. |
| | GO:0051346 | | negative regulation of hydrolase activity | | Any process that stops or reduces the rate of hydrolase activity, the catalysis of the hydrolysis of various bonds. |
| | GO:0010466 | | negative regulation of peptidase activity | | Any process that stops or reduces the rate of peptidase activity, the hydrolysis of peptide bonds within proteins. |
| | GO:0045861 | | negative regulation of proteolysis | | Any process that stops, prevents, or reduces the frequency, rate or extent of the hydrolysis of a peptide bond or bonds within a protein. |
| | GO:0007338 | | single fertilization | | The union of male and female gametes to form a zygote. |
| | GO:0007283 | | spermatogenesis | | The process of formation of spermatozoa, including spermatocytogenesis and spermiogenesis. |
| | GO:0006810 | | transport | | The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein. |
| cellular component |
|---|
| | GO:0002080 | | acrosomal membrane | | The membrane that surrounds the acrosomal lumen. The acrosome is a special type of lysosome in the head of a spermatozoon that contains acid hydrolases and is concerned with the breakdown of the outer membrane of the ovum during fertilization. |
| | GO:0009897 | | external side of plasma membrane | | The leaflet of the plasma membrane that faces away from the cytoplasm and any proteins embedded or anchored in it or attached to its surface. |
| | GO:0070062 | | extracellular exosome | | 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. |
| | GO:0005576 | | extracellular region | | 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. |
| | GO:0005615 | | extracellular space | | That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid. |
| | GO:0016020 | | membrane | | A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it. |
| | GO:0031091 | | platelet alpha granule | | A secretory organelle found in blood platelets, which is unique in that it exhibits further compartmentalization and acquires its protein content via two distinct mechanisms: (1) biosynthesis predominantly at the megakaryocyte (MK) level (with some vestigial platelet synthesis) (e.g. platelet factor 4) and (2) endocytosis and pinocytosis at both the MK and circulating platelet levels (e.g. fibrinogen (Fg) and IgG). |
| | GO:0031094 | | platelet dense tubular network | | A network of membrane-bounded compartments found in blood platelets, where they regulate platelet activation by sequestering or releasing calcium. The dense tubular network exists as thin elongated membranes in resting platelets, and undergoes a major ultrastructural change, to a rounded vesicular form, upon addition of thrombin. |
| | GO:0036029 | | protein C inhibitor-KLK3 complex | | A heterodimeric protein complex that contains protein C inhibitor (SERPINA5) and prostate-specific antigen (KLK3); formation of the complex inhibits the serine protease activity of prostate-specific antigen. |
| | GO:0036026 | | protein C inhibitor-PLAT complex | | A heterodimeric protein complex that contains protein C inhibitor (SERPINA5) and tissue-type plasminogen activator (PLAT); formation of the complex inhibits the serine protease activity of tissue-type plasminogen activator. |
| | GO:0036027 | | protein C inhibitor-PLAU complex | | A heterodimeric protein complex that contains protein C inhibitor (SERPINA5) and urokinase-type plasminogen activator (PLAU); formation of the complex inhibits the serine protease activity of urokinase-type plasminogen activator. |
| | GO:0036025 | | protein C inhibitor-TMPRSS11E complex | | A heterodimeric protein complex that contains protein C inhibitor (SERPINA5) and transmembrane protease serine 11E (TMPRSS11E); formation of the complex inhibits the serine protease activity of transmembrane protease serine 11E. |
| | GO:0036024 | | protein C inhibitor-TMPRSS7 complex | | A heterodimeric protein complex that contains protein C inhibitor (SERPINA5) and transmembrane protease serine 7 (TMPRSS7); formation of the complex inhibits the serine protease activity of transmembrane protease serine 7. |
| | GO:0097181 | | protein C inhibitor-coagulation factor V complex | | A heterodimeric protein complex that contains protein C inhibitor (SERPINA5) and coagulation factor V (F5); formation of the complex inhibits the serine protease activity of coagulation factor V. |
| | GO:0097183 | | protein C inhibitor-coagulation factor XI complex | | A heterodimeric protein complex that contains protein C inhibitor (SERPINA5) and coagulation factor XI (F11); formation of the complex inhibits the serine protease activity of coagulation factor XI. |
| | GO:0097182 | | protein C inhibitor-coagulation factor Xa complex | | A heterodimeric protein complex that contains protein C inhibitor (SERPINA5) and coagulation factor Xa (F10); formation of the complex inhibits the serine protease activity of coagulation factor Xa. |
| | GO:0036030 | | protein C inhibitor-plasma kallikrein complex | | A heterodimeric protein complex that contains protein C inhibitor (SERPINA5) and plasma kallikrein (KLK1B); formation of the complex inhibits the serine protease activity of plasma kallikrein. |
| | GO:0036028 | | protein C inhibitor-thrombin complex | | A heterodimeric protein complex that contains protein C inhibitor (SERPINA5) and thrombin (F2); formation of the complex inhibits the serine protease activity of thrombin. |
| | GO:0043234 | | protein complex | | A stable macromolecular complex composed (only) of two or more polypeptide subunits along with any covalently attached molecules (such as lipid anchors or oligosaccharide) or non-protein prosthetic groups (such as nucleotides or metal ions). Prosthetic group in this context refers to a tightly bound cofactor. The component polypeptide subunits may be identical. |
Description
