Annotations: 2PNS

1.9 Angstrom resolution crystal structure of a plant cysteine protease Ervatamin-C refinement with cDNA derived amino acid sequence

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
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)
B	d2pnsb_	Alpha and beta proteins (a+b)	Cysteine proteinases	Cysteine proteinases	Papain-like	automated matches	(Tabernaemontana divaricata ) [TaxId: 52861 ],	SCOPe (2.08)
A	d2pnsa_	Alpha and beta proteins (a+b)	Cysteine proteinases	Cysteine proteinases	Papain-like	automated matches	(Tabernaemontana divaricata ) [TaxId: 52861 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Cysteine proteinases	8037137	3001808	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Cysteine proteinases	8037137	3001808	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	DAO, NAD_binding_8	e2pnsB1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: DAO, NAD_binding_8	ECOD (v295.2)
A		e2pnsA1	A: alpha arrays	X: Profilin-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F:	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.90.70.10	Alpha Beta	Alpha-Beta Complex	Cathepsin B	Chain A	CATH (4.3.0)
A	3.90.70.10	Alpha Beta	Alpha-Beta Complex	Cathepsin B	Chain A	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Ervatamin-C, a papain-like plant cysteine protease	cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein cysteine-type endopeptidase activity hydrolase activity catalytic activity endopeptidase activity	proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process	cellular anatomical structure extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR038765	Papain-like cysteine peptidase superfamily	Homologous Superfamily
A, B	IPR025661	Cysteine peptidase, asparagine active site	Active Site
A, B	IPR000169	Cysteine peptidase, cysteine active site	Active Site
A, B	IPR013128	Peptidase C1A	Family
A, B	IPR000668	Peptidase C1A, papain C-terminal	Domain
A, B	IPR039417	Papain-like cysteine endopeptidase	Domain