1I78 | pdb_00001i78

CRYSTAL STRUCTURE OF OUTER MEMBRANE PROTEASE OMPT FROM ESCHERICHIA COLI

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
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD
Membrane Protein Annotation: mpstruc
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	d1i78a_	Membrane and cell surface proteins and peptides	Transmembrane beta-barrels	OMPT-like	Outer membrane protease OMPT	Outer membrane protease OMPT	(Escherichia coli K-12 ) [TaxId: 83333 ],	SCOPe (2.08)
B	d1i78b_	Membrane and cell surface proteins and peptides	Transmembrane beta-barrels	OMPT-like	Outer membrane protease OMPT	Outer membrane protease OMPT	(Escherichia coli K-12 ) [TaxId: 83333 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Outer membrane protease OMPT	8024165	4003603	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	OMPT-like	8036544	3001111	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	OMPT-like	8036544	3001111	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	Omptin	e1i78A1	A: beta barrels	X: Outer membrane meander beta-barrels	H: OMPT-like (From Topology)	T: OMPT-like	F: Omptin	ECOD (1.6)
B	Omptin	e1i78B1	A: beta barrels	X: Outer membrane meander beta-barrels	H: OMPT-like (From Topology)	T: OMPT-like	F: Omptin	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.128.90	Mainly Beta	Beta Barrel	Lipocalin	OMPT-like	CATH (4.3.0)
B	2.40.128.90	Mainly Beta	Beta Barrel	Lipocalin	OMPT-like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01278	Omptin family (Omptin)	Omptin family	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	PROTEASE VII	aspartic-type peptidase activity peptidase activity catalytic activity, acting on a protein hydrolase activity aspartic-type endopeptidase activity catalytic activity endopeptidase activity serine hydrolase activity serine-type peptidase activity serine-type endopeptidase activity	proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process	cell periphery cell outer membrane cellular anatomical structure external encapsulating structure membrane cell envelope outer membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR020080	Outer membrane adhesin/peptidase omptin	Homologous Superfamily
A, B	IPR053724	Outer Membrane Peptidase A26	Homologous Superfamily
A, B	IPR020079	Peptidase A26, omptin, conserved site	Conserved Site
A, B	IPR000036	Peptidase A26, omptin	Family

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B	OPM	Transmembrane	Beta-barrel transmembrane	Omptin (n=10,S=12)	OM protease omptin, OMPT

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B	mpstruc	TRANSMEMBRANE PROTEINS: BETA-BARREL	Beta-Barrel Membrane Proteins: Monomeric/Dimeric	OmpT outer membrane protease

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

Chains	Enzyme Name	Description	Catalytic Residues
A	omptin M-CSA #821	Outer membrane protease (OmpT) of Escherichia coli is from a family of homologous outer membrane proteases called omptins. They are implicated in the virulence of several pathogenic, gram negative bacteria, and OmpT is associated with urinary tract disease. OmpT preferentially cleaves substrates between two consecutive basic amino acids, and is dependent on the presence of lipopolysaccharide.	Defined by 5 residues: ASP:A-83ASP:A-85ALA:A-99ASP:A-210HIS:A-212 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 3.4.21.87 (PDB Primary Data) Search M-CSA Motif + EC 3.4.21.87 EC: 3.4.23.49 (UniProt) Search M-CSA Motif + EC 3.4.23.49

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.