7MIR | pdb_00007mir

Cryo-EM structure of SidJ-SdeA-CaM reaction intermediate complex


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
BSCOP2B SuperfamilyEF-hand 8093610 3001983 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
BEF-hand_7_8e7mirB2 A: alpha arraysX: EF-handH: EF-hand-relatedT: EF-handF: EF-hand_7_8ECOD (1.6)
BEF-hand_7_5e7mirB1 A: alpha arraysX: EF-handH: EF-hand-relatedT: EF-handF: EF-hand_7_5ECOD (1.6)
AF_UNCLASSIFIEDe7mirA3 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)
AF_UNCLASSIFIEDe7mirA1 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)
AF_UNCLASSIFIEDe7mirA2 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)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF19048SidE mono-ADP-ribosyltransferase domain (SidE_mART)SidE mono-ADP-ribosyltransferase domainThis domain found in the SidE bacterial effector protein mediates the mono-ADP-ribosylation of ubiquitin, which is then ligated to host proteins by the Pfam:PF12252 domain [1]. 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
PF13499EF-hand domain pair (EF-hand_7)EF-hand domain pairDomain
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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Ubiquitinating/deubiquitinating enzyme SdeA
Calmodulin-2
Calmodulin-dependent glutamylase SidJ -