4NAQ

Crystal structure of porcine aminopeptidase-N complexed with poly-alanine

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d4naqa4	All alpha proteins	alpha-alpha superhelix	ARM repeat	automated matches	automated matches	pig (Sus scrofa ) [TaxId: 9823 ],	SCOPe (2.08)
A	d4naqa3	All beta proteins	Immunoglobulin-like beta-sandwich	Zn aminopeptidase insert domain	automated matches	automated matches	pig (Sus scrofa ) [TaxId: 9823 ],	SCOPe (2.08)
A	d4naqa1	All beta proteins	Zn aminopeptidase N-terminal domain	Zn aminopeptidase N-terminal domain	automated matches	automated matches	pig (Sus scrofa ) [TaxId: 9823 ],	SCOPe (2.08)
A	d4naqa2	Alpha and beta proteins (a+b)	Zincin-like	Metalloproteases ('zincins'), catalytic domain	automated matches	automated matches	pig (Sus scrofa ) [TaxId: 9823 ],	SCOPe (2.08)
A	d4naqa5	Artifacts	Tags	Tags	Tags	C-terminal Tags	pig (Sus scrofa ) [TaxId: 9823 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	ARM repeat-like	8054072	3000116	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Leukotriene A4 hydrolase N-terminal domain	8054070	3000390	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	ERAP1, insert domain	8054069	3002272	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Metalloproteases (zincins), catalytic domain	8054071	3001975	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	ERAP1_C	e4naqA4	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: ERAP1_C	ECOD (1.6)
A	Peptidase_M1_2	e4naqA2	A: beta sandwiches	X: Baculovirus p35 protein-related (From Topology)	H: Baculovirus p35 protein-related (From Topology)	T: Baculovirus p35 protein-related	F: Peptidase_M1_2	ECOD (1.6)
A	ERAP1_C	e4naqA3	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: ERAP1_C	ECOD (1.6)
A	Peptidase_M1_1	e4naqA5	A: mixed a+b and a/b	X: Zincin-like	H: Metalloproteases (zincins) catalytic domain (From Topology)	T: Metalloproteases (zincins) catalytic domain	F: Peptidase_M1_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.1730	Mainly Beta	Sandwich	Immunoglobulin-like	tricorn interacting facor f3 domain	CATH (4.3.0)
A	1.10.390.10	Mainly Alpha	Orthogonal Bundle	Neutral Protease	domain 2	CATH (4.3.0)
A	2.60.40.1910	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
A	1.25.50.20	Mainly Alpha	Alpha Horseshoe	Zincin-like fold		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF11838	ERAP1-like C-terminal domain (ERAP1_C)	ERAP1-like C-terminal domain	This large domain is composed of 16 alpha helices organized as 8 HEAT-like repeats. This domain forms a concave face that faces towards the active site of the peptidase.	Domain
A	PF01433	Peptidase family M1 domain (Peptidase_M1)	Peptidase family M1 domain	Members of this family are aminopeptidases. The members differ widely in specificity, hydrolysing acidic, basic or neutral N-terminal residues. This family includes leukotriene-A4 hydrolase Swiss:P09960, this enzyme also has an aminopeptidase activ ...	Members of this family are aminopeptidases. The members differ widely in specificity, hydrolysing acidic, basic or neutral N-terminal residues. This family includes leukotriene-A4 hydrolase Swiss:P09960, this enzyme also has an aminopeptidase activity [1].	Domain
A	PF17900	Peptidase M1 N-terminal domain (Peptidase_M1_N)	Peptidase M1 N-terminal domain	This domain is found at the N-terminus of aminopeptidases from the M1 family.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Aminopeptidase N	protein binding binding virus receptor activity exogenous protein binding peptide binding cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding peptidase activity catalytic activity, acting on a protein hydrolase activity protein binding binding virus receptor activity exogenous protein binding peptide binding cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding peptidase activity catalytic activity, acting on a protein hydrolase activity metallopeptidase activity aminopeptidase activity metalloaminopeptidase activity exopeptidase activity catalytic activity metalloexopeptidase activity	cellular catabolic process catabolic process cellular metabolic process metabolic process cellular process peptide metabolic process peptide catabolic process developmental process cellular developmental process cell differentiation multicellular organismal process blood vessel morphogenesis tube development angiogenesis cellular catabolic process catabolic process cellular metabolic process metabolic process cellular process peptide metabolic process peptide catabolic process developmental process cellular developmental process cell differentiation multicellular organismal process blood vessel morphogenesis tube development angiogenesis vasculature development circulatory system development multicellular organism development anatomical structure morphogenesis tube morphogenesis anatomical structure development anatomical structure formation involved in morphogenesis blood vessel development system development proteolysis primary metabolic process protein metabolic process macromolecule metabolic process	cell periphery plasma membrane membrane cellular anatomical entity intracellular anatomical structure cytoplasm extracellular region extracellular space
B	poly A peptide	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR001930	Peptidase M1, alanine aminopeptidase/leukotriene A4 hydrolase	Family
A	IPR027268	Peptidase M4/M1, CTD superfamily	Homologous Superfamily
A	IPR034016	Aminopeptidase N-type	Family
A	IPR014782	Peptidase M1, membrane alanine aminopeptidase	Domain
A	IPR045357	Aminopeptidase N-like , N-terminal domain	Domain
A	IPR042097	Aminopeptidase N-like , N-terminal domain superfamliy	Homologous Superfamily
A	IPR024571	ERAP1-like C-terminal domain	Domain
A	IPR050344	Peptidase M1 family aminopeptidases	Family

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729.