3TU3

1.92 Angstrom resolution crystal structure of the full-length SpcU in complex with full-length ExoU from the type III secretion system of Pseudomonas aeruginosa


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AF_UNCLASSIFIEDe3tu3A1 A: a+b two layersX: Type III secretory system chaperone-likeH: Type III secretory system chaperone (From Topology)T: Type III secretory system chaperoneF: F_UNCLASSIFIEDECOD (1.6)
BPF20848e3tu3B2 A: alpha bundlesX: ExoU toxin middle helical domain (From Topology)H: ExoU toxin middle helical domain (From Topology)T: ExoU toxin middle helical domainF: PF20848ECOD (1.6)
BPF20983e3tu3B3 A: alpha bundlesX: Bromodomain-likeH: ExoU toxin C-terminal domain (From Topology)T: ExoU toxin C-terminal domainF: PF20983ECOD (1.6)
BPF01734e3tu3B1 A: a/b three-layered sandwichesX: Flavodoxin-likeH: Class I glutamine amidotransferase-likeT: FabD/lysophospholipase-likeF: PF01734ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF01734Patatin-like phospholipase (Patatin)Patatin-like phospholipase- Family
PF20848ExoU toxin, middle helical domain (ExoU_mid_dom)ExoU toxin, middle helical domainMany pathogenic Gram-negative bacteria use type III secretion systems (T3SS) to deliver effector proteins into the host cell cytosol and facilitate the infectious process. The effector protein ExoU from Pseudomonas aeruginosa, one of the most aggress ...Many pathogenic Gram-negative bacteria use type III secretion systems (T3SS) to deliver effector proteins into the host cell cytosol and facilitate the infectious process. The effector protein ExoU from Pseudomonas aeruginosa, one of the most aggressive toxins injected by a T3SS, has four distinct domains. The chaperone-binding domain consists of two separate regions, a N-terminal region and a middle subdomain (this entry). The latter shows a mostly alpha-helical structure [1-3].
Domain
PF20983ExoU toxin, C-terminal domain (ExoU_C)ExoU toxin, C-terminal domainThis domain is found in the toxin ExoU from Pseudomonas aeruginosa, an effector of the type III secretion system of the bacteria. ExoU is a patatin-like phospholipase that binds to the host membranes and induces cytotoxic effects leading to rapid nec ...This domain is found in the toxin ExoU from Pseudomonas aeruginosa, an effector of the type III secretion system of the bacteria. ExoU is a patatin-like phospholipase that binds to the host membranes and induces cytotoxic effects leading to rapid necrotic cell death. This protein shows four domains: a putative chaperone binding domain. a patatin-like domain (Pfam:PF01734), and two domains that form the membrane localization domain (MLD). This entry represents the C-terminal domain, which folds into a four-helical bundle with a conserved arginine exposed. This residue seems to be essential for localization [1-3].
Domain