2N9W

Solution NMR Structure of the membrane localization domain from the Ras/Rap1-specific endopeptidase (RRSP) of the Vibrio vulnificus multifunctional autoprocessing repeats-in-toxins (MARTX) toxin

External Resource: Annotation

Domain Annotation: ECOD Classification
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	MLD	e2n9wA1	A: alpha bundles	X: Bromodomain-like	H: PMT helical bundle domain-like	T: PMT helical bundle domain-like	F: MLD	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF11647	Membrane Localization Domain (MLD)	Membrane Localization Domain	This is a membrane localization domain found in multiple families of bacterial toxins including all of the clostridial glucosyltransferase toxins and various MARTX toxins (multifunctional-autoprocessing RTX toxins) [1,4]. In the Pasteurella multocida ...	This is a membrane localization domain found in multiple families of bacterial toxins including all of the clostridial glucosyltransferase toxins and various MARTX toxins (multifunctional-autoprocessing RTX toxins) [1,4]. In the Pasteurella multocida toxin (PMT) C-terminal fragment, structural analysis have indicated that the C1 domain possesses a signal that leads the toxin to the cell membrane. Furthermore, the C1 domain was found to structurally resemble the phospholipid-binding domain of C. difficile toxin B [2]. Functional studies in Vibrio cholera indicate that the subdomain at the N terminus of RID (Rho-inactivation domain), homologous to the membrane targeting C1 domain of Pasteurella multocida toxin, is a conserved membrane localization domain essential for proper localization [1]. The Rho-inactivation domain (RID) of MARTX (Multifunctional Autoprocessing RTX toxin) is responsible for inactivating the Rho-family of small GTPases in Vibrio cholerae. It is a bacterial toxin that self-process by a cysteine peptidase mechanism [3]. The Vibrio cholerae RTX toxin is an autoprocessing cysteine protease whose activity is stimulated by the intracellular environment [3]. This cysteine peptidase belongs to MEROPS peptidase family G6.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	RTX toxin	binding lipid binding toxin activity catalytic activity ligase activity cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein hydrolase activity acyltransferase activity transferase activity cation binding ion binding metal ion binding binding lipid binding toxin activity catalytic activity ligase activity cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein hydrolase activity acyltransferase activity transferase activity cation binding ion binding metal ion binding small molecule binding	proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process	cellular anatomical structure membrane extracellular region host cell plasma membrane host cellular component host cell part host cell membrane host intracellular part host cell cytoplasm host intracellular region host cell cytosol host cell cytoplasm part

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR000073	Alpha/beta hydrolase fold-1	Domain
A	IPR038383	CGT/MARTX, cysteine protease (CPD) domain superfamily	Homologous Superfamily
A	IPR029058	Alpha/Beta hydrolase fold	Homologous Superfamily
A	IPR011509	RtxA toxin	Repeat
A	IPR020974	CGT/MARTX, cysteine protease (CPD) domain	Domain
A	IPR049824	RtxA toxin-like, peptidase C80 cysteine binding domain	Domain
A	IPR048461	Dermonecrotic toxin-like, C2 domain	Domain
A	IPR020972	Dermonecrotic/RTX toxin, membrane localization domain	Domain
A	IPR048568	RTX toxin, C-terminal repeat	Repeat
A	IPR011049	Serralysin-like metalloprotease, C-terminal	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.