1QFM | pdb_00001qfm

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1qfma1	All beta proteins	7-bladed beta-propeller	Peptidase/esterase 'gauge' domain	Prolyl oligopeptidase, N-terminal domain	Prolyl oligopeptidase, N-terminal domain	(Sus scrofa ) [TaxId: 9823 ],	SCOPe (2.08)
A	d1qfma2	Alpha and beta proteins (a/b)	alpha/beta-Hydrolases	alpha/beta-Hydrolases	Prolyl oligopeptidase, C-terminal domain	Prolyl oligopeptidase, C-terminal domain	(Sus scrofa ) [TaxId: 9823 ],	SCOPe (2.08)

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Prolyl oligopeptidase, C-terminal domain	8020121	4000706	SCOP2 (2022-06-29)
A	SCOP2 Family	Prolyl oligopeptidase, N-terminal domain	8030478	4002763	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	alpha/beta-Hydrolases	8032501	3000102	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Peptidase/esterase 'gauge' domain	8042857	3001719	SCOP2 (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Peptidase_S9_N	e1qfmA1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 7-bladed	F: Peptidase_S9_N	ECOD (v294.1)
A	Peptidase_S9	e1qfmA2	A: a/b three-layered sandwiches	X: alpha/beta-Hydrolases	H: alpha/beta-Hydrolases	T: alpha/beta-Hydrolases	F: Peptidase_S9	ECOD (v294.1)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.1820	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Alpha/Beta hydrolase fold, catalytic domain	CATH (4.3.0)
A	2.130.10.120	Mainly Beta	7 Propeller	Methylamine Dehydrogenase	Chain H	CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
A	PF00326	Prolyl oligopeptidase family (Peptidase_S9)	Prolyl oligopeptidase family		Domain
A	PF02897	Prolyl oligopeptidase, N-terminal beta-propeller domain (Peptidase_S9_N)	Prolyl oligopeptidase, N-terminal beta-propeller domain	-	Repeat

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PROTEIN (PROLYL OLIGOPEPTIDASE)	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	proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm

Chains	Accession	Name	Type
A	IPR001375	Peptidase S9, prolyl oligopeptidase, catalytic domain	Domain
A	IPR002470	Peptidase S9A, prolyl oligopeptidase	Family
A	IPR002471	Peptidase S9, serine active site	Active Site
A	IPR023302	Peptidase S9A, N-terminal domain	Domain
A	IPR051167	Prolyl oligopeptidase and macrocyclase	Family
A	IPR029058	Alpha/Beta hydrolase fold	Homologous Superfamily

Modified Residue(s)
Chain	Residue(s)	Description
A	CSD	Parent Component: CYS : AA0262 : L-cysteine sulfinic acid MOD:00267
A	CSX	Parent Component: CYS : AA0262 , AA0451 : L-cysteine sulfinic acid MOD:00267 , 2'-(S-L-cysteinyl)-6'-hydroxy-L-tryptophan sulfoxide MOD:01380

Chains	Enzyme Name	Description	Catalytic Residues
A	prolyl oligopeptidase M-CSA #901	This group of serine peptidases belong to MEROPS peptidase family S9 (clan SC), subfamily S9A (prolyl oligopeptidase). The active site of members of this clan consists of a linear arrangement of serine, histidine and threonine catalytic residues [PMID:7845208]. Prolyl oligopeptidases are either located in the cytosol or they are membrane bound, where they cleave peptide bonds with prolyl P1 specificities (but cleavage of alanyl bonds has been detected). The proline must adopt a trans configuration within the chain. Peptides of up to 30 residues are cleaved [PMID:7845208].	Defined by 4 residues: TYR:A-473SER:A-554ASP:A-641HIS:A-680 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 3.4.21.26 (PDB Primary Data) Search M-CSA Motif + EC 3.4.21.26

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.