Annotations: 3IUN

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3iuna1	All beta proteins	7-bladed beta-propeller	Peptidase/esterase 'gauge' domain	automated matches	automated matches	Aeromonas caviae (Aeromonas caviae ) [TaxId: 648 ],	SCOPe (2.08)
A	d3iuna2	Alpha and beta proteins (a/b)	alpha/beta-Hydrolases	alpha/beta-Hydrolases	automated matches	automated matches	Aeromonas caviae (Aeromonas caviae ) [TaxId: 648 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Peptidase_S9_N	e3iunA1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 7-bladed	F: Peptidase_S9_N	ECOD (1.6)
A	Hydrolase_4	e3iunA2	A: a/b three-layered sandwiches	X: alpha/beta-Hydrolases (From Topology)	H: alpha/beta-Hydrolases (From Topology)	T: alpha/beta-Hydrolases	F: Hydrolase_4	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

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 (4.2.0)
A	2.130.10.120	Mainly Beta	7 Propeller	Methylamine Dehydrogenase	Chain H	CATH (4.2.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Prolyl Endopeptidase	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 oligopeptidase activity	proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

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

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.