Annotations: 8H3S

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C	SCOP2B Superfamily	Trypsin-like serine proteases	8042115	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	PF00629	e8h3sA1	A: beta sandwiches	X: jelly-roll	H: Concanavalin A-like	T: Concanavalin A-like lectins/glucanases	F: PF00629	ECOD (1.6)
A	PF00431	e8h3sA2	A: beta sandwiches	X: jelly-roll	H: Spermadhesin, CUB domain (From Topology)	T: Spermadhesin, CUB domain	F: PF00431	ECOD (1.6)
A	PF15494	e8h3sA3	A: a+b complex topology	X: SRCR-like	H: SRCR-like (From Topology)	T: SRCR-like	F: PF15494	ECOD (1.6)
A	PF00057	e8h3sA4	A: few secondary structure elements	X: EGF-like	H: LDL receptor-like module (From Topology)	T: LDL receptor-like module	F: PF00057	ECOD (1.6)
B	PF00089	e8h3sB1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel 2	F: PF00089	ECOD (1.6)
C	PF00089	e8h3sC1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel 2	F: PF00089	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF15494	Scavenger receptor cysteine-rich domain (SRCR_2)	Scavenger receptor cysteine-rich domain	SRCR_2 is a scavenger receptor cysteine-rich domain family found largely on vertebrate sequences up-stream of the trypsin-like transmembrane serine protease, Spinesin.	Domain
A	PF00629	MAM domain, meprin/A5/mu (MAM)	MAM domain, meprin/A5/mu	An extracellular domain found in many receptors [1]. The MAM domain along with the associated Ig domain in type IIB receptor protein tyrosine phosphatases forms a structural unit (termed MIg) with a seamless interdomain interface. It plays a major ro ...	An extracellular domain found in many receptors [1]. The MAM domain along with the associated Ig domain in type IIB receptor protein tyrosine phosphatases forms a structural unit (termed MIg) with a seamless interdomain interface. It plays a major role in homodimerisation of the phosphatase ectoprotein and in cell adhesion [2,3]. MAM is a beta-sandwich consisting of two five-stranded antiparallel beta-sheets rotated away from each other by approx 25 degrees, and plays a similar role in meprin metalloproteinases [4].	Domain
A	PF00431	CUB domain (CUB)	CUB domain	-	Domain
A	PF00057	Low-density lipoprotein receptor domain class A (Ldl_recept_a)	Low-density lipoprotein receptor domain class A	-	Repeat
B	PF00089	Trypsin (Trypsin)	Trypsin	-	Domain
C	PF00089	Trypsin (Trypsin)	Trypsin	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Enteropeptidase non-catalytic heavy chain	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	organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process	membrane cellular anatomical entity cluster of actin-based cell projections brush border
B	Enteropeptidase catalytic light chain	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	organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process	membrane cellular anatomical entity cluster of actin-based cell projections brush border
C	Serine protease 1	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 cation binding ion binding binding metal ion binding small molecule binding	cellular component organization cellular component disassembly extracellular matrix disassembly extracellular matrix organization cellular process cellular component organization or biogenesis extracellular structure organization external encapsulating structure organization organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process cellular component organization cellular component disassembly extracellular matrix disassembly extracellular matrix organization cellular process cellular component organization or biogenesis extracellular structure organization external encapsulating structure organization organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process multicellular organismal process digestion	extracellular region extracellular space cellular anatomical entity blood microparticle cell periphery extracellular matrix external encapsulating structure collagen-containing extracellular matrix

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR017448	SRCR-like domain	Domain
A	IPR002172	Low-density lipoprotein (LDL) receptor class A repeat	Repeat
A	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
A	IPR001190	SRCR domain	Domain
A	IPR001314	Peptidase S1A, chymotrypsin family	Family
A	IPR033116	Serine proteases, trypsin family, serine active site	Active Site
A	IPR035914	Spermadhesin, CUB domain superfamily	Homologous Superfamily
A	IPR013320	Concanavalin A-like lectin/glucanase domain superfamily	Homologous Superfamily
A	IPR036772	SRCR-like domain superfamily	Homologous Superfamily
A	IPR001254	Serine proteases, trypsin domain	Domain
A	IPR000998	MAM domain	Domain
A	IPR023415	Low-density lipoprotein (LDL) receptor class A, conserved site	Conserved Site
A	IPR036055	LDL receptor-like superfamily	Homologous Superfamily
A	IPR036364	SEA domain superfamily	Homologous Superfamily
A	IPR000859	CUB domain	Domain
A	IPR011163	Peptidase S1A, enteropeptidase	Family
A	IPR000082	SEA domain	Domain
A	IPR043504	Peptidase S1, PA clan, chymotrypsin-like fold	Homologous Superfamily
A	IPR018114	Serine proteases, trypsin family, histidine active site	Active Site
B	IPR017448	SRCR-like domain	Domain
B	IPR002172	Low-density lipoprotein (LDL) receptor class A repeat	Repeat
B	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
B	IPR001190	SRCR domain	Domain
B	IPR001314	Peptidase S1A, chymotrypsin family	Family
B	IPR033116	Serine proteases, trypsin family, serine active site	Active Site
B	IPR035914	Spermadhesin, CUB domain superfamily	Homologous Superfamily
B	IPR013320	Concanavalin A-like lectin/glucanase domain superfamily	Homologous Superfamily
B	IPR036772	SRCR-like domain superfamily	Homologous Superfamily
B	IPR001254	Serine proteases, trypsin domain	Domain
B	IPR000998	MAM domain	Domain
B	IPR023415	Low-density lipoprotein (LDL) receptor class A, conserved site	Conserved Site
B	IPR036055	LDL receptor-like superfamily	Homologous Superfamily
B	IPR036364	SEA domain superfamily	Homologous Superfamily
B	IPR000859	CUB domain	Domain
B	IPR011163	Peptidase S1A, enteropeptidase	Family
B	IPR000082	SEA domain	Domain
B	IPR043504	Peptidase S1, PA clan, chymotrypsin-like fold	Homologous Superfamily
B	IPR018114	Serine proteases, trypsin family, histidine active site	Active Site
C	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
C	IPR001314	Peptidase S1A, chymotrypsin family	Family
C	IPR033116	Serine proteases, trypsin family, serine active site	Active Site
C	IPR001254	Serine proteases, trypsin domain	Domain
C	IPR043504	Peptidase S1, PA clan, chymotrypsin-like fold	Homologous Superfamily
C	IPR018114	Serine proteases, trypsin family, histidine active site	Active Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P98073	congenital enteropathy due to enteropeptidase deficiency Sjogren syndrome cystic fibrosis large cell medulloblastoma
B	Pharos: P98073	congenital enteropathy due to enteropeptidase deficiency Sjogren syndrome cystic fibrosis large cell medulloblastoma
C	Pharos: P07477	pancreatitis hereditary chronic pancreatitis trypsinogen deficiency chronic pancreatitis alcoholic pancreatitis colorectal cancer pancreatic intraductal papillary-mucinous carcinoma PANCREATITIS, CHRONIC, SUSCEPTIBILITY TO cystic fibrosis pancreatic intraductal papillary-mucinous neoplasm ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia