Annotations: 4AFS

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Trypsin-like serine proteases	8033466	3000114	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Trypsin_1	e4afsA1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel 2	F: Trypsin_1	ECOD (1.6)
B [auth C]	SH3_1	e4afsC1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: SH3_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.10.10	Mainly Beta	Beta Barrel	Thrombin, subunit H	Trypsin-like serine proteases	CATH (4.3.0)
B [auth C]	2.30.30.40	Mainly Beta	Roll	SH3 type barrels.	SH3 Domains	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00089	Trypsin (Trypsin)	Trypsin	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	CHYMASE	peptidase activity catalytic activity, acting on a protein serine hydrolase activity serine-type peptidase activity hydrolase activity serine-type endopeptidase activity catalytic activity endopeptidase activity binding peptide binding	regulation of systemic arterial blood pressure by renin-angiotensin regulation of systemic arterial blood pressure by hormone multicellular organismal process peptide hormone processing regulation of systemic arterial blood pressure mediated by a chemical signal system process cellular biosynthetic process signaling receptor ligand precursor processing protein maturation organic substance metabolic process circulatory system process proteolysis organic substance biosynthetic process amide metabolic process regulation of systemic arterial blood pressure by renin-angiotensin regulation of systemic arterial blood pressure by hormone multicellular organismal process peptide hormone processing regulation of systemic arterial blood pressure mediated by a chemical signal system process cellular biosynthetic process signaling receptor ligand precursor processing protein maturation organic substance metabolic process circulatory system process proteolysis organic substance biosynthetic process amide metabolic process protein metabolic process regulation of biological quality blood circulation organonitrogen compound metabolic process regulation of blood pressure regulation of hormone levels cellular metabolic process biological regulation regulation of systemic arterial blood pressure by circulatory renin-angiotensin primary metabolic process gene expression macromolecule biosynthetic process hormone metabolic process regulation of systemic arterial blood pressure endocrine process biosynthetic process regulation of angiotensin levels in blood protein processing metabolic process cellular process macromolecule metabolic process angiotensin maturation developmental process head development animal organ development brain development nervous system development multicellular organism development central nervous system development midbrain development anatomical structure development system development cellular response to stimulus response to organic substance response to stimulus homeostatic process response to monosaccharide response to carbohydrate carbohydrate homeostasis cellular response to hexose stimulus intracellular chemical homeostasis cellular response to monosaccharide stimulus cellular response to organic substance response to oxygen-containing compound cellular response to glucose stimulus intracellular glucose homeostasis cellular response to oxygen-containing compound response to hexose cellular response to carbohydrate stimulus cellular response to chemical stimulus cellular homeostasis chemical homeostasis response to glucose response to chemical glucose homeostasis organonitrogen compound catabolic process catabolic process protein catabolic process macromolecule catabolic process organic substance catabolic process cellular component organization cellular component disassembly extracellular matrix disassembly basement membrane disassembly extracellular matrix organization cellular component organization or biogenesis extracellular structure organization external encapsulating structure organization basement membrane organization cytokine precursor processing cytokine production regulation of defense response regulation of biological process regulation of response to external stimulus defense response regulation of inflammatory response response to external stimulus regulation of response to stimulus response to stress regulation of response to stress inflammatory response regulation of developmental process positive regulation of biological process angiogenesis regulation of vasculature development positive regulation of developmental process tube morphogenesis regulation of multicellular organismal process regulation of anatomical structure morphogenesis blood vessel development regulation of multicellular organismal development blood vessel morphogenesis tube development positive regulation of angiogenesis vasculature development circulatory system development anatomical structure morphogenesis positive regulation of vasculature development regulation of angiogenesis anatomical structure formation involved in morphogenesis positive regulation of multicellular organismal process	cell periphery extracellular matrix external encapsulating structure collagen-containing extracellular matrix cellular anatomical entity intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle intracellular organelle organelle intracellular membrane-bounded organelle intracellular vesicle endomembrane system cell periphery extracellular matrix external encapsulating structure collagen-containing extracellular matrix cellular anatomical entity intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle intracellular organelle organelle intracellular membrane-bounded organelle intracellular vesicle endomembrane system cytoplasmic vesicle secretory granule secretory vesicle vesicle intracellular non-membrane-bounded organelle cytoplasmic ribonucleoprotein granule supramolecular complex non-membrane-bounded organelle ribonucleoprotein granule extracellular region extracellular space
B [auth C]	FYNOMER	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR018114	Serine proteases, trypsin family, histidine active site	Active Site
A	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
A	IPR001314	Peptidase S1A, chymotrypsin family	Family
A	IPR033116	Serine proteases, trypsin family, serine active site	Active Site
A	IPR001254	Serine proteases, trypsin domain	Domain
A	IPR043504	Peptidase S1, PA clan, chymotrypsin-like fold	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P23946	pulmonary fibrosis hypertensive disorder atopic eczema ductal breast carcinoma in situ Hypertrophy, Left Ventricular idiopathic interstitial pneumonia osteosarcoma cutaneous lupus erythematosus invasive ductal breast carcinoma psoriasis

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.