Crystal structure of the C-terminal domain of the Shigella type III effector IpaH


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
CSCOP2B SuperfamilyNovel E3 ligase (NEL), C-terminal domain -like 8052845 3002145 SCOP2B (2022-06-29)
BSCOP2 FamilyNovel E3 ligase (NEL), C-terminal domain-like 8050055 4006749 SCOP2 (2022-06-29)
BSCOP2 SuperfamilyNovel E3 ligase (NEL), C-terminal domain -like 8052845 3002145 SCOP2 (2022-06-29)
ASCOP2B SuperfamilyNovel E3 ligase (NEL), C-terminal domain -like 8052845 3002145 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
CPYNP_Ce3ckdC1 A: alpha arraysX: Ribosomal protein L19 (L19e) C-terminal domainH: Ribosomal protein L19 (L19e) C-terminal domainT: Ribosomal protein L19 (L19e) C-terminal domainF: PYNP_CECOD (v295)
BPyr_redox_dime3ckdB2 A: alpha arraysX: Fusion glycoprotein F2H: RIFT-relatedT: double psiF: Pyr_redox_dimECOD (v295)
Ae3ckdA1 A: alpha arraysX: Alpha-lytic protease prodomain-likeH: Glycosyl hydrolase domainT: Glycosyl hydrolase domainF:ECOD (v295)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B, C
PF14496C-terminal novel E3 ligase, LRR-interacting (NEL)C-terminal novel E3 ligase, LRR-interactingThis NEL or novel E3 ligase domain is found at the C-terminus of bacterial virulence factors. Its sequence is different from those of the eukaryotic HECT and RING-finger E3 ligases, and it subverts the host ubiquitination process. At the N-terminus o ...This NEL or novel E3 ligase domain is found at the C-terminus of bacterial virulence factors. Its sequence is different from those of the eukaryotic HECT and RING-finger E3 ligases, and it subverts the host ubiquitination process. At the N-terminus of the family-members there is a series of LRR repeats, and the NEL domain interacts with the most N-terminal repeat. The key residue for the ligation step is the cysteine, eg found at position 386 in UniProtKB:E7K2H2. The LRR section sequesters this active site until invasion has occurred [1].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B, C
Invasion plasmid antigen, secreted by the Mxi-Spa secretion machinery