6FKG | pdb_00006fkg

Crystal structure of the M.tuberculosis MbcT-MbcA toxin-antitoxin complex.


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
CPolyA_pole6fkgC1 A: a/b three-layered sandwichesX: PriB N-terminal domain-likeH: Aconitase iron-sulfur domainT: Aconitase iron-sulfur domainF: PolyA_polECOD (v294.1)
DRibonuc_2-5Ae6fkgD1 A: a/b three-layered sandwichesX: PriB N-terminal domain-likeH: Aconitase iron-sulfur domainT: Aconitase iron-sulfur domainF: Ribonuc_2-5AECOD (v294.1)
AVWAe6fkgA1 A: a/b three-layered sandwichesX: Ten stranded beta/alpha barrelH: Ten stranded beta/alpha barrelT: Ten stranded beta/alpha barrelF: VWAECOD (v294.1)
BRESe6fkgB1 A: a/b three-layered sandwichesX: Ten stranded beta/alpha barrelH: Ten stranded beta/alpha barrelT: Ten stranded beta/alpha barrelF: RESECOD (v294.1)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
C, D
PF09722Antitoxin Xre/MbcA/ParS C-terminal toxin-binding domain (Xre_MbcA_ParS_C)Antitoxin Xre/MbcA/ParS C-terminal toxin-binding domainThis entry represents the C-terminal domain of antitoxin components of a type II toxin-antitoxin (TA) system, including Xre from Pseudomonas putida, MbcA from Mycobacterium sp. and ParS from Sphingobium sp. [1,2,3,4]. This domain interacts with the t ...This entry represents the C-terminal domain of antitoxin components of a type II toxin-antitoxin (TA) system, including Xre from Pseudomonas putida, MbcA from Mycobacterium sp. and ParS from Sphingobium sp. [1,2,3,4]. This domain interacts with the toxin component and sterically blocks its active site, neutralising its effect [2,3]. These antitoxins also have a HTH domain at the N-terminal.
Domain
A, B
PF08808RES domain (RES)RES domainThis presumed domain contains 3 highly conserved polar groups that could form an active site. These are an arginine, glutamate and serine, hence the RES domain. The domain is found widely distributed in bacteria. The domain is about 150 residues in l ...This presumed domain contains 3 highly conserved polar groups that could form an active site. These are an arginine, glutamate and serine, hence the RES domain. The domain is found widely distributed in bacteria. The domain is about 150 residues in length.
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
C, D
Rv1990c (MbcA)- - -
A, B
Rv1989c (MbcT) - -

InterPro: Protein Family Classification InterPro Database Homepage