7PPO | pdb_00007ppo

Structure of SidJ/CaM bound to SdeA in pre-glutamylation state


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
C [auth B]SCOP2B SuperfamilyEF-hand 8093610 3001983 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
C [auth B]EF-hand_7_8e7ppoB2 A: alpha arraysX: EF-handH: EF-hand-relatedT: EF-handF: EF-hand_7_8ECOD (1.6)
C [auth B]EF-hand_7_5e7ppoB1 A: alpha arraysX: EF-handH: EF-hand-relatedT: EF-handF: EF-hand_7_5ECOD (1.6)
B [auth C]F_UNCLASSIFIEDe7ppoC3 A: alpha superhelicesX: C-terminal domain of SidJ (From Topology)H: C-terminal domain of SidJ (From Topology)T: C-terminal domain of SidJF: F_UNCLASSIFIEDECOD (1.6)
B [auth C]F_UNCLASSIFIEDe7ppoC1 A: a+b complex topologyX: Protein kinase/SAICAR synthase/ATP-grasp (From Homology)H: Protein kinase/SAICAR synthase/ATP-graspT: Protein kinaseF: F_UNCLASSIFIEDECOD (1.6)
B [auth C]F_UNCLASSIFIEDe7ppoC2 A: a+b complex topologyX: N-terminal domain of SidJ (From Topology)H: N-terminal domain of SidJ (From Topology)T: N-terminal domain of SidJF: F_UNCLASSIFIEDECOD (1.6)
ASidE_2nde7ppoA1 A: alpha complex topologyX: PDEase-likeH: HD-domain/PDEase-like (From Topology)T: HD-domain/PDEase-likeF: SidE_2ndECOD (1.6)
AF_UNCLASSIFIEDe7ppoA2 A: a+b complex topologyX: ADP-ribosylation (From Topology)H: ADP-ribosylation (From Topology)T: ADP-ribosylationF: F_UNCLASSIFIEDECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
C [auth B]PF13499EF-hand domain pair (EF-hand_7)EF-hand domain pairDomain
B [auth C]PF26375SidJ calmodulin-dependent glutamylase N-terminal domain (SidJ_CaM_N)SidJ calmodulin-dependent glutamylase N-terminal domainThis entry represents the N-terminal domain of SidJ family proteins. The SidJ_CaM family comprises proteins that function as calmodulin-dependent glutamylases. These proteins facilitate the attachment of glutamate moieties to specific catalytic resid ...This entry represents the N-terminal domain of SidJ family proteins. The SidJ_CaM family comprises proteins that function as calmodulin-dependent glutamylases. These proteins facilitate the attachment of glutamate moieties to specific catalytic residues on target proteins such as SdeA, SdeB, SdeC, and SidE. This modification is essential for the mono-ADP-ribosyltransferase activity of SdeA and inhibits its ubiquitinating activity. The glutamylase activity of this family is dependent on the presence of host calmodulin, highlighting its role in host-pathogen interactions. Additionally, members of this family may possess deubiquitinase activity, potentially reversing substrate ubiquitination mediated by SdeA by cleaving the phosphodiester bond linking phosphoribosylated ubiquitin to protein substrates.
Domain
PF12252SidE phosphodiesterase (PDE) domain (SidE_PDE)SidE phosphodiesterase (PDE) domainThis entry represents the phosphodiesterase (PDE) domain found in the bacterial ubiquitinating enzymes, which belong to the SidE family. This domain catalyses the conjugation of ADP-ribosylated ubiquitin (ADPR-Ub), previously synthesised by the mono- ...This entry represents the phosphodiesterase (PDE) domain found in the bacterial ubiquitinating enzymes, which belong to the SidE family. This domain catalyses the conjugation of ADP-ribosylated ubiquitin (ADPR-Ub), previously synthesised by the mono-ADP-ribosyltransferase (mART) domain, to a serine residue on substrates to generate a protein-phosphoribosyl-Ub (PR-Ub) product. These pathogen proteins are secreted bacterial effector proteins, which are translocated inside the host cell using the Dot/Icm secretion system [1,2]. The SidE family of enzymes carry out ubiquitination of host cell proteins in an E1/E2-independent manner [2,3].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
C [auth B]Calmodulin
B [auth C]Calmodulin-dependent glutamylase SidJ -
Ubiquitinating/deubiquitinating enzyme SdeA