1CZI

CHYMOSIN COMPLEX WITH THE INHIBITOR CP-113972

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
Protein Modification Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth E]	d1czie_	All beta proteins	Acid proteases	Acid proteases	Pepsin-like	Chymosin (synonym: renin)	cattle (Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth E]	SCOP2B Superfamily	Acid proteases	8042493	3001059	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 [auth E]	Asp_C	e1cziE2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Asp_C	ECOD (1.6)
A [auth E]	Asp_N	e1cziE3	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Asp_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth E]	2.40.70.10	Mainly Beta	Beta Barrel	Cathepsin D, subunit A	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth E]	PF00026	Eukaryotic aspartyl protease (Asp)	Eukaryotic aspartyl protease	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth E]	CHYMOSIN	aspartic-type peptidase activity peptidase activity catalytic activity, acting on a protein hydrolase activity aspartic-type endopeptidase activity catalytic activity endopeptidase activity	proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process multicellular organismal process digestion	-
B [auth P]	CP-113972 (NORSTATINE-S-METHYL CYSTEINE-IODO-PHENYLALANINE-PROLINE)	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth E]	IPR001461	Aspartic peptidase A1	Family
A [auth E]	IPR012848	Aspartic peptidase, N-terminal	Domain
A [auth E]	IPR034162	Pepsin catalytic domain	Domain
A [auth E]	IPR033121	Peptidase family A1 domain	Domain
A [auth E]	IPR021109	Aspartic peptidase domain superfamily	Homologous Superfamily
A [auth E]	IPR001969	Aspartic peptidase, active site	Active Site

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
B [auth P]	NOR
B [auth P]	PHI	Parent Component: PHE
B [auth P]	SMC	Parent Component: CYS RESID: AA0234 PSI-MOD : S-methyl-L-cysteine MOD:00239

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.