Annotations: 8ZI4

Cryo-EM structure of wtEP-trypsinogen

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth 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)
B [auth D]	WD40	e8zi4D1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
A [auth C]	WD40	e8zi4C1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C [auth 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
C [auth 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
C [auth A]	PF00431	CUB domain (CUB)	CUB domain		Domain
C [auth A]	PF00057	Low-density lipoprotein receptor domain class A (Ldl_recept_a)	Low-density lipoprotein receptor domain class A	-	Repeat
B [auth D]	PF00089	Trypsin (Trypsin)	Trypsin		Domain
A [auth C]	PF00089	Trypsin (Trypsin)	Trypsin		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth 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	primary metabolic process gene expression macromolecule biosynthetic process protein maturation biosynthetic process proteolysis protein processing metabolic process cellular process protein metabolic process macromolecule metabolic process	cellular anatomical structure membrane apical part of cell cluster of actin-based cell projections brush border
B [auth D]	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	primary metabolic process gene expression macromolecule biosynthetic process protein maturation biosynthetic process proteolysis protein processing metabolic process cellular process protein metabolic process macromolecule metabolic process	cellular anatomical structure membrane apical part of cell cluster of actin-based cell projections brush border
A [auth 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 proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process multicellular organismal 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 proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process multicellular organismal process digestion	cellular anatomical structure extracellular region blood microparticle extracellular matrix external encapsulating structure

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth A]	IPR002172	Low-density lipoprotein (LDL) receptor class A repeat	Repeat
C [auth A]	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
C [auth A]	IPR001190	SRCR domain	Domain
C [auth A]	IPR001314	Peptidase S1A, chymotrypsin family	Family
C [auth A]	IPR033116	Serine proteases, trypsin family, serine active site	Active Site
C [auth A]	IPR035914	Spermadhesin, CUB domain superfamily	Homologous Superfamily
C [auth A]	IPR013320	Concanavalin A-like lectin/glucanase domain superfamily	Homologous Superfamily
C [auth A]	IPR036772	SRCR-like domain superfamily	Homologous Superfamily
C [auth A]	IPR001254	Serine proteases, trypsin domain	Domain
C [auth A]	IPR000998	MAM domain	Domain
C [auth A]	IPR023415	Low-density lipoprotein (LDL) receptor class A, conserved site	Conserved Site
C [auth A]	IPR018114	Serine protease-like, trypsin family, histidine active site	Active Site
C [auth A]	IPR036055	LDL receptor-like superfamily	Homologous Superfamily
C [auth A]	IPR036364	SEA domain superfamily	Homologous Superfamily
C [auth A]	IPR000859	CUB domain	Domain
C [auth A]	IPR011163	Peptidase S1A, enteropeptidase	Family
C [auth A]	IPR000082	SEA domain	Domain
C [auth A]	IPR043504	Peptidase_S1_PA_chymotrypsin	Unknown
B [auth D]	IPR002172	Low-density lipoprotein (LDL) receptor class A repeat	Repeat
B [auth D]	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
B [auth D]	IPR001190	SRCR domain	Domain
B [auth D]	IPR001314	Peptidase S1A, chymotrypsin family	Family
B [auth D]	IPR033116	Serine proteases, trypsin family, serine active site	Active Site
B [auth D]	IPR035914	Spermadhesin, CUB domain superfamily	Homologous Superfamily
B [auth D]	IPR013320	Concanavalin A-like lectin/glucanase domain superfamily	Homologous Superfamily
B [auth D]	IPR036772	SRCR-like domain superfamily	Homologous Superfamily
B [auth D]	IPR001254	Serine proteases, trypsin domain	Domain
B [auth D]	IPR000998	MAM domain	Domain
B [auth D]	IPR023415	Low-density lipoprotein (LDL) receptor class A, conserved site	Conserved Site
B [auth D]	IPR018114	Serine protease-like, trypsin family, histidine active site	Active Site
B [auth D]	IPR036055	LDL receptor-like superfamily	Homologous Superfamily
B [auth D]	IPR036364	SEA domain superfamily	Homologous Superfamily
B [auth D]	IPR000859	CUB domain	Domain
B [auth D]	IPR011163	Peptidase S1A, enteropeptidase	Family
B [auth D]	IPR000082	SEA domain	Domain
B [auth D]	IPR043504	Peptidase_S1_PA_chymotrypsin	Unknown
A [auth C]	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
A [auth C]	IPR001314	Peptidase S1A, chymotrypsin family	Family
A [auth C]	IPR033116	Serine proteases, trypsin family, serine active site	Active Site
A [auth C]	IPR001254	Serine proteases, trypsin domain	Domain
A [auth C]	IPR018114	Serine protease-like, trypsin family, histidine active site	Active Site
A [auth C]	IPR050127	Serine Proteases (Peptidase S1 Family)	Family
A [auth C]	IPR043504	Peptidase_S1_PA_chymotrypsin	Unknown

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
C [auth A]	: P98073	congenital enteropathy due to enteropeptidase deficiency Sjogren syndrome cystic fibrosis large cell medulloblastoma
B [auth D]	: P98073	congenital enteropathy due to enteropeptidase deficiency Sjogren syndrome cystic fibrosis large cell medulloblastoma
A [auth C]	: 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