The name of this superfamily has been modified since the most recent official CATH+ release (v4_4_0). At the point of the last release, this superfamily was named:

"
Trypsin-like serine proteases
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
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FunFam 71: Prothrombin

Please note: GO annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

There are 15 GO terms relating to "molecular function"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Serine-type endopeptidase activity GO:0004252
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).
4 P00734 (/IDA) P00735 (/IDA) P19221 (/IDA) P19221 (/IDA)
Protein binding GO:0005515
Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
4 P00734 (/IPI) P00735 (/IPI) P19221 (/IPI) P19221 (/IPI)
Lipopolysaccharide binding GO:0001530
Interacting selectively and non-covalently with lipopolysaccharide.
2 P19221 (/ISO) P19221 (/ISO)
Serine-type endopeptidase activity GO:0004252
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).
2 P19221 (/ISO) P19221 (/ISO)
Signaling receptor binding GO:0005102
Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
2 P19221 (/ISO) P19221 (/ISO)
Enzyme activator activity GO:0008047
Binds to and increases the activity of an enzyme.
2 P19221 (/IDA) P19221 (/IDA)
Heparin binding GO:0008201
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.
2 P19221 (/ISO) P19221 (/ISO)
Peptidase activity GO:0008233
Catalysis of the hydrolysis of a peptide bond. A peptide bond is a covalent bond formed when the carbon atom from the carboxyl group of one amino acid shares electrons with the nitrogen atom from the amino group of a second amino acid.
2 P19221 (/IMP) P19221 (/IMP)
Thrombospondin receptor activity GO:0070053
Combining with thrombospondin and transmitting the signal to initiate a change in cell activity.
2 P19221 (/ISO) P19221 (/ISO)
Lipopolysaccharide binding GO:0001530
Interacting selectively and non-covalently with lipopolysaccharide.
1 P00734 (/IDA)
Signaling receptor binding GO:0005102
Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
1 P00734 (/IPI)
Growth factor activity GO:0008083
The function that stimulates a cell to grow or proliferate. Most growth factors have other actions besides the induction of cell growth or proliferation.
1 P00734 (/TAS)
Heparin binding GO:0008201
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.
1 P00734 (/IDA)
Fibrinogen binding GO:0070051
Interacting selectively and non-covalently with fibrinogen, a highly soluble hexameric glycoprotein complex that is found in blood plasma and is converted to fibrin by thrombin in the coagulation cascade.
1 P00735 (/IPI)
Thrombospondin receptor activity GO:0070053
Combining with thrombospondin and transmitting the signal to initiate a change in cell activity.
1 P00734 (/IDA)

There are 68 GO terms relating to "biological process"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Platelet activation GO:0030168
A series of progressive, overlapping events triggered by exposure of the platelets to subendothelial tissue. These events include shape change, adhesiveness, aggregation, and release reactions. When carried through to completion, these events lead to the formation of a stable hemostatic plug.
3 P00734 (/IDA) P19221 (/IDA) P19221 (/IDA)
Positive regulation of protein phosphorylation GO:0001934
Any process that activates or increases the frequency, rate or extent of addition of phosphate groups to amino acids within a protein.
2 P19221 (/ISO) P19221 (/ISO)
Cell surface receptor signaling pathway GO:0007166
A series of molecular signals initiated by activation of a receptor on the surface of a cell. The pathway begins with binding of an extracellular ligand to a cell surface receptor, or for receptors that signal in the absence of a ligand, by ligand-withdrawal or the activity of a constitutively active receptor. The pathway ends with regulation of a downstream cellular process, e.g. transcription.
2 P19221 (/ISO) P19221 (/ISO)
Blood coagulation GO:0007596
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.
2 P19221 (/ISO) P19221 (/ISO)
Positive regulation of cell population proliferation GO:0008284
Any process that activates or increases the rate or extent of cell proliferation.
2 P19221 (/IGI) P19221 (/IGI)
Regulation of cell shape GO:0008360
Any process that modulates the surface configuration of a cell.
2 P19221 (/IGI) P19221 (/IGI)
Response to wounding GO:0009611
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 stimulus indicating damage to the organism.
2 P19221 (/ISO) P19221 (/ISO)
Regulation of gene expression GO:0010468
Any process that modulates the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
2 P19221 (/IDA) P19221 (/IDA)
Positive regulation of phosphatidylinositol 3-kinase signaling GO:0014068
Any process that activates or increases the frequency, rate or extent of signal transduction mediated by the phosphatidylinositol 3-kinase cascade.
2 P19221 (/IGI) P19221 (/IGI)
Platelet activation GO:0030168
A series of progressive, overlapping events triggered by exposure of the platelets to subendothelial tissue. These events include shape change, adhesiveness, aggregation, and release reactions. When carried through to completion, these events lead to the formation of a stable hemostatic plug.
2 P19221 (/ISO) P19221 (/ISO)
Positive regulation of blood coagulation GO:0030194
Any process that activates or increases the frequency, rate or extent of blood coagulation.
2 P00734 (/IDA) P00735 (/IDA)
Positive regulation of blood coagulation GO:0030194
Any process that activates or increases the frequency, rate or extent of blood coagulation.
2 P19221 (/ISO) P19221 (/ISO)
Positive regulation of cell growth GO:0030307
Any process that activates or increases the frequency, rate, extent or direction of cell growth.
2 P19221 (/IGI) P19221 (/IGI)
Positive regulation of collagen biosynthetic process GO:0032967
Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of collagen, any of a group of fibrous proteins of very high tensile strength that form the main component of connective tissue in animals.
2 P19221 (/ISO) P19221 (/ISO)
Fibrinolysis GO:0042730
A process that solubilizes fibrin in the bloodstream of a multicellular organism, chiefly by the proteolytic action of plasmin.
2 P19221 (/ISO) P19221 (/ISO)
Negative regulation of proteolysis GO:0045861
Any process that stops, prevents, or reduces the frequency, rate or extent of the hydrolysis of a peptide bond or bonds within a protein.
2 P19221 (/ISO) P19221 (/ISO)
Negative regulation of astrocyte differentiation GO:0048712
Any process that stops, prevents, or reduces the frequency, rate or extent of astrocyte differentiation.
2 P19221 (/ISO) P19221 (/ISO)
Positive regulation of release of sequestered calcium ion into cytosol GO:0051281
Any process that activates or increases the frequency, rate or extent of the release into the cytosolic compartment of calcium ions sequestered in the endoplasmic reticulum or mitochondria.
2 P19221 (/ISO) P19221 (/ISO)
Regulation of cytosolic calcium ion concentration GO:0051480
Any process involved in the maintenance of an internal steady state of calcium ions within the cytosol of a cell or between the cytosol and its surroundings.
2 P19221 (/ISO) P19221 (/ISO)
Cytolysis by host of symbiont cells GO:0051838
The killing by an organism of a cell in its symbiont organism by means of the rupture of cell membranes and the loss of cytoplasm. The symbiont is defined as the smaller of the organisms involved in a symbiotic interaction.
2 P19221 (/ISO) P19221 (/ISO)
Antimicrobial humoral immune response mediated by antimicrobial peptide GO:0061844
An immune response against microbes mediated by anti-microbial peptides in body fluid.
2 P19221 (/ISO) P19221 (/ISO)
Thrombin-activated receptor signaling pathway GO:0070493
The series of molecular signals generated as a consequence of a thrombin-activated receptor binding to one of its physiological ligands.
2 P19221 (/ISO) P19221 (/ISO)
Neutrophil mediated killing of gram-negative bacterium GO:0070945
The directed killing of a gram-negative bacterium by a neutrophil.
2 P19221 (/ISO) P19221 (/ISO)
Positive regulation of lipid kinase activity GO:0090218
Any process that increases the frequency, rate or extent of lipid kinase activity, the catalysis of the transfer of a phosphate group, usually from ATP, to a simple or complex lipid.
2 P19221 (/ISO) P19221 (/ISO)
Negative regulation of cytokine production involved in inflammatory response GO:1900016
Any process that stops, prevents or reduces the frequency, rate or extent of cytokine production involved in inflammatory response.
2 P19221 (/ISO) P19221 (/ISO)
Positive regulation of protein localization to nucleus GO:1900182
Any process that activates or increases the frequency, rate or extent of protein localization to nucleus.
2 P19221 (/ISO) P19221 (/ISO)
Positive regulation of phospholipase C-activating G protein-coupled receptor signaling pathway GO:1900738
Any process that activates or increases the frequency, rate or extent of phospholipase C-activating G protein-coupled receptor signaling pathway.
2 P19221 (/ISO) P19221 (/ISO)
Positive regulation of reactive oxygen species metabolic process GO:2000379
Any process that activates or increases the frequency, rate or extent of reactive oxygen species metabolic process.
2 P19221 (/ISO) P19221 (/ISO)
Positive regulation of protein phosphorylation GO:0001934
Any process that activates or increases the frequency, rate or extent of addition of phosphate groups to amino acids within a protein.
1 P00734 (/IDA)
Proteolysis GO:0006508
The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
1 P00735 (/IDA)
Proteolysis GO:0006508
The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
1 P00734 (/TAS)
Endoplasmic reticulum to Golgi vesicle-mediated transport GO:0006888
The directed movement of substances from the endoplasmic reticulum (ER) to the Golgi, mediated by COP II vesicles. Small COP II coated vesicles form from the ER and then fuse directly with the cis-Golgi. Larger structures are transported along microtubules to the cis-Golgi.
1 P00734 (/TAS)
Cell surface receptor signaling pathway GO:0007166
A series of molecular signals initiated by activation of a receptor on the surface of a cell. The pathway begins with binding of an extracellular ligand to a cell surface receptor, or for receptors that signal in the absence of a ligand, by ligand-withdrawal or the activity of a constitutively active receptor. The pathway ends with regulation of a downstream cellular process, e.g. transcription.
1 P00734 (/IDA)
G protein-coupled receptor signaling pathway GO:0007186
A series of molecular signals that proceeds with an activated receptor promoting the exchange of GDP for GTP on the alpha-subunit of an associated heterotrimeric G-protein complex. The GTP-bound activated alpha-G-protein then dissociates from the beta- and gamma-subunits to further transmit the signal within the cell. The pathway begins with receptor-ligand interaction, or for basal GPCR signaling the pathway begins with the receptor activating its G protein in the absence of an agonist, and ends with regulation of a downstream cellular process, e.g. transcription. The pathway can start from the plasma membrane, Golgi or nuclear membrane (PMID:24568158 and PMID:16902576).
1 P00734 (/TAS)
Multicellular organism development GO:0007275
The biological process whose specific outcome is the progression of a multicellular organism over time from an initial condition (e.g. a zygote or a young adult) to a later condition (e.g. a multicellular animal or an aged adult).
1 P00734 (/TAS)
Blood coagulation GO:0007596
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.
1 P18292 (/IDA)
Blood coagulation GO:0007596
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.
1 P00734 (/TAS)
Blood coagulation, intrinsic pathway GO:0007597
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.
1 P00734 (/TAS)
Response to wounding GO:0009611
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 stimulus indicating damage to the organism.
1 P00734 (/IDA)
Negative regulation of platelet activation GO:0010544
Any process that decreases the rate or frequency of platelet activation. Platelet activation is a series of progressive, overlapping events triggered by exposure of the platelets to subendothelial tissue.
1 P00734 (/TAS)
Response to inactivity GO:0014854
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 an inactivity stimulus.
1 P18292 (/IEP)
Platelet activation GO:0030168
A series of progressive, overlapping events triggered by exposure of the platelets to subendothelial tissue. These events include shape change, adhesiveness, aggregation, and release reactions. When carried through to completion, these events lead to the formation of a stable hemostatic plug.
1 P00734 (/TAS)
Regulation of blood coagulation GO:0030193
Any process that modulates the frequency, rate or extent of blood coagulation.
1 P00734 (/TAS)
Positive regulation of blood coagulation GO:0030194
Any process that activates or increases the frequency, rate or extent of blood coagulation.
1 P18292 (/IMP)
Regulation of complement activation GO:0030449
Any process that modulates the frequency, rate or extent of complement activation.
1 P00734 (/TAS)
Positive regulation of collagen biosynthetic process GO:0032967
Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of collagen, any of a group of fibrous proteins of very high tensile strength that form the main component of connective tissue in animals.
1 P00734 (/IDA)
Fibrinolysis GO:0042730
A process that solubilizes fibrin in the bloodstream of a multicellular organism, chiefly by the proteolytic action of plasmin.
1 P00734 (/IDA)
Cellular protein metabolic process GO:0044267
The chemical reactions and pathways involving a specific protein, rather than of proteins in general, occurring at the level of an individual cell. Includes cellular protein modification.
1 P00734 (/TAS)
Negative regulation of proteolysis GO:0045861
Any process that stops, prevents, or reduces the frequency, rate or extent of the hydrolysis of a peptide bond or bonds within a protein.
1 P00734 (/IDA)
Positive regulation of receptor signaling pathway via JAK-STAT GO:0046427
Any process that activates or increases the frequency, rate or extent of the JAK-STAT signaling pathway activity.
1 P00734 (/NAS)
Negative regulation of astrocyte differentiation GO:0048712
Any process that stops, prevents, or reduces the frequency, rate or extent of astrocyte differentiation.
1 P00734 (/IDA)
Leukocyte migration GO:0050900
The movement of a leukocyte within or between different tissues and organs of the body.
1 P00734 (/TAS)
Protein polymerization GO:0051258
The process of creating protein polymers, compounds composed of a large number of component monomers; polymeric proteins may be made up of different or identical monomers. Polymerization occurs by the addition of extra monomers to an existing poly- or oligomeric protein.
1 P00735 (/IDA)
Positive regulation of release of sequestered calcium ion into cytosol GO:0051281
Any process that activates or increases the frequency, rate or extent of the release into the cytosolic compartment of calcium ions sequestered in the endoplasmic reticulum or mitochondria.
1 P00734 (/IDA)
Regulation of cytosolic calcium ion concentration GO:0051480
Any process involved in the maintenance of an internal steady state of calcium ions within the cytosol of a cell or between the cytosol and its surroundings.
1 P00734 (/IDA)
Cytolysis by host of symbiont cells GO:0051838
The killing by an organism of a cell in its symbiont organism by means of the rupture of cell membranes and the loss of cytoplasm. The symbiont is defined as the smaller of the organisms involved in a symbiotic interaction.
1 P00734 (/IDA)
Negative regulation of fibrinolysis GO:0051918
Any process that stops, prevents, or reduces the frequency, rate or extent of fibrinolysis, an ongoing process that solubilizes fibrin, resulting in the removal of small blood clots.
1 P00734 (/TAS)
Antimicrobial humoral immune response mediated by antimicrobial peptide GO:0061844
An immune response against microbes mediated by anti-microbial peptides in body fluid.
1 P00734 (/IDA)
Neutrophil mediated killing of gram-negative bacterium GO:0070945
The directed killing of a gram-negative bacterium by a neutrophil.
1 P00734 (/IDA)
Cellular response to mechanical stimulus GO:0071260
Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a mechanical stimulus.
1 P18292 (/IEP)
Positive regulation of lipid kinase activity GO:0090218
Any process that increases the frequency, rate or extent of lipid kinase activity, the catalysis of the transfer of a phosphate group, usually from ATP, to a simple or complex lipid.
1 P00734 (/IDA)
Response to thyroxine GO:0097068
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 thyroxine stimulus.
1 P18292 (/IEP)
Negative regulation of cytokine production involved in inflammatory response GO:1900016
Any process that stops, prevents or reduces the frequency, rate or extent of cytokine production involved in inflammatory response.
1 P00734 (/IDA)
Positive regulation of protein localization to nucleus GO:1900182
Any process that activates or increases the frequency, rate or extent of protein localization to nucleus.
1 P00734 (/IDA)
Positive regulation of phospholipase C-activating G protein-coupled receptor signaling pathway GO:1900738
Any process that activates or increases the frequency, rate or extent of phospholipase C-activating G protein-coupled receptor signaling pathway.
1 P00734 (/IDA)
Response to Thyroglobulin triiodothyronine GO:1904016
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 Thyroglobulin triiodothyronine stimulus.
1 P18292 (/IEP)
Response to thyrotropin-releasing hormone GO:1905225
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 thyrotropin-releasing hormone (TRH) stimulus. TRH increases the secretion of thyroid-stimulating hormone by the anterior pituitary.
1 P18292 (/IEP)
Positive regulation of reactive oxygen species metabolic process GO:2000379
Any process that activates or increases the frequency, rate or extent of reactive oxygen species metabolic process.
1 P00734 (/IDA)

There are 12 GO terms relating to "cellular component"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Extracellular space GO:0005615
That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.
2 P00734 (/IDA) P18292 (/IDA)
Extracellular space GO:0005615
That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.
2 P19221 (/ISO) P19221 (/ISO)
Collagen-containing extracellular matrix GO:0062023
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.
2 P19221 (/HDA) P19221 (/HDA)
Collagen-containing extracellular matrix GO:0062023
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.
2 P19221 (/ISO) P19221 (/ISO)
Extracellular region GO:0005576
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.
1 P00734 (/TAS)
Extracellular space GO:0005615
That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.
1 P00734 (/HDA)
Endoplasmic reticulum lumen GO:0005788
The volume enclosed by the membranes of the endoplasmic reticulum.
1 P00734 (/TAS)
Golgi lumen GO:0005796
The volume enclosed by the membranes of any cisterna or subcompartment of the Golgi apparatus, including the cis- and trans-Golgi networks.
1 P00734 (/TAS)
Plasma membrane GO:0005886
The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
1 P00734 (/TAS)
Collagen-containing extracellular matrix GO:0062023
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.
1 P18292 (/IDA)
Extracellular exosome GO:0070062
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.
1 P00734 (/HDA)
Blood microparticle GO:0072562
A phospholipid microvesicle that is derived from any of several cell types, such as platelets, blood cells, endothelial cells, or others, and contains membrane receptors as well as other proteins characteristic of the parental cell. Microparticles are heterogeneous in size, and are characterized as microvesicles free of nucleic acids.
1 P00734 (/HDA)
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