3KM5

Crystal Structure Analysis of the K2 Cleaved Adhesin Domain of Lys-gingipain (Kgp)

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Cleaved_Adhesin	e3km5A1	A: beta sandwiches	X: jelly-roll	H: Concanavalin A-like	T: Concanavalin A-like lectins/glucanases	F: Cleaved_Adhesin	ECOD (1.6)
B	Cleaved_Adhesin	e3km5B1	A: beta sandwiches	X: jelly-roll	H: Concanavalin A-like	T: Concanavalin A-like lectins/glucanases	F: Cleaved_Adhesin	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.120.200	Mainly Beta	Sandwich	Jelly Rolls		CATH (4.3.0)
B	2.60.120.200	Mainly Beta	Sandwich	Jelly Rolls		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF07675	Cleaved Adhesin Domain (Cleaved_Adhesin)	Cleaved Adhesin Domain	This is a family of bacterial protein modules thought to function in various roles including cell adhesion, cell lysis and carbohydrate binding [1]. A tandem repeat of these modules (either two or three repeats) constitute the haemagglutinin/adhesin ...	This is a family of bacterial protein modules thought to function in various roles including cell adhesion, cell lysis and carbohydrate binding [1]. A tandem repeat of these modules (either two or three repeats) constitute the haemagglutinin/adhesin (HA) regions of the gingipains, RgpA, Swiss:Q51816 and Kgp, Swiss:P72194 and Swiss:P72197 [3] expressed by Porphyromonas gingivalis (Bacteroides gingivalis) [2]. They form components of the major extracellular virulence complex RgpA-Kgp - a mixture of proteinases and adhesin domains [4]. The adhesin domains in this complex are found in proteinase-cleaved forms when isolated from the cell surface [5]. Haemagglutinin genes of P. gingivalis [6] (hagA1 HAGA1_PORGI - Swiss:P59915 - and hagA2 HAGA2_PORGI - Swiss:Q51845) suggest that such proteins are composed of eight to ten tandem repeats of these adhesin modules [1]. Genomic data predicts that homologous protein modules are also expressed by a number of other bacteria and form part of putative multi-domain proteins, eg. Swiss:Q26BR9 and Swiss:B0VGL6. These domains may be acting in concert with other adhesion modules thought to be part of these multi-domain proteins such as fibronectin type III, Pfam:PF00041, and Meprin, A5, mu (MAM), Pfam:PF00629, domains.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Lysine specific cysteine protease	cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein hydrolase activity catalytic activity	proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR018832	Peptidase C25, gingipain, C-terminal	Domain
A, B	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A, B	IPR003961	Fibronectin type III	Domain
A, B	IPR011628	Cleaved adhesin	Domain

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.