1LOK

The 1.20 Angstrom Resolution Crystal Structure of the Aminopeptidase from Aeromonas proteolytica Complexed with Tris: A Tale of Buffer Inhibition

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
Structure Motif: Primary M-CSA Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1loka_	Alpha and beta proteins (a/b)	Phosphorylase/hydrolase-like	Zn-dependent exopeptidases	Bacterial dinuclear zinc exopeptidases	Aminopeptidase	(Vibrio proteolyticus ) [TaxId: 671 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Zn-dependent exopeptidases	8040908	3000662	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	PF04389	e1lokA1	A: a/b three-layered sandwiches	X: Phosphorylase/hydrolase-like	H: Zn-dependent exopeptidases (From Topology)	T: Zn-dependent exopeptidases	F: PF04389	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.630.10	Alpha Beta	3-Layer(aba) Sandwich	Aminopeptidase	Zn peptidases	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF04389	Peptidase family M28 (Peptidase_M28)	Peptidase family M28	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Bacterial leucyl aminopeptidase	cation binding ion binding binding metal ion binding small molecule binding peptidase activity catalytic activity, acting on a protein hydrolase activity metallopeptidase activity exopeptidase activity catalytic activity metalloexopeptidase activity aminopeptidase activity	organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process	extracellular region cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR007484	Peptidase M28	Domain
A	IPR012189	Peptidase M28E, aminopeptidase AP1	Family
A	IPR045175	Peptidase M28 family	Family
A	IPR007280	Peptidase, C-terminal, archaeal/bacterial	Domain

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	bacterial leucyl aminopeptidase M-CSA #167	Aminopeptidases catalyse the hydrolysis of a wide range of N-terminal amino acid residues from proteins and polypeptides. These enzymes have a broad substrate specificity and are widely distributed in bacteria, yeast, plant and animal tissues. Functions of aminopeptidases include protein maturation, protein degradation, hormone level regulation and cell cycle control. Since aminopeptidase activity has been reported on the surface of tumour cells, they are very likely key players in tumour growth and metastatic proliferation.	Defined by 6 residues: HIS:A-97ASP:A-117GLU:A-151GLU:A-152ASP:A-179HIS:A-256 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 3.4.11.10 (PDB Primary Data) Search M-CSA Motif + EC 3.4.11.10

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.