Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyAbrB/MazE/MraZ-like 8034352 3000181 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyAbrB/MazE/MraZ-like 8034352 3000181 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AMazE_antitoxine2ro4A1 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: AbrBF: MazE_antitoxinECOD (1.6)
BMazE_antitoxine2ro4B1 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: AbrBF: MazE_antitoxinECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A2.10.260.10 Mainly Beta Ribbon Pemi-like Protein 1 Chain: DCATH (4.3.0)
B2.10.260.10 Mainly Beta Ribbon Pemi-like Protein 1 Chain: DCATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF04014Antidote-toxin recognition MazE, bacterial antitoxin (MazE_antitoxin)Antidote-toxin recognition MazE, bacterial antitoxinAbrB-like is a family of small proteins that operate in conjunction with a cognate toxin molecule. The commonly attributed role of toxin-antitoxin systems is to maintain low-copy number plasmids from one generation to the next. Such gene-pairs are al ...AbrB-like is a family of small proteins that operate in conjunction with a cognate toxin molecule. The commonly attributed role of toxin-antitoxin systems is to maintain low-copy number plasmids from one generation to the next. Such gene-pairs are also found on chromosomes and to be associated with a number of biological functions such as: reduction of protein synthesis, gene regulation and retardation of cell growth under nutritional stress [1]. This family includes proteins from a number of different pairings, eg MazE, AbrB, VapB [2], PhoU, PemI-like and SpoVT. MazE is the antidote to the toxin MazF of E. coli. MazE-MazF in E. coli is a regulated prokaryotic chromosomal addiction module. MazE antidote is degraded by the ClpPA protease of the bacterial proteasome. MazE-MazF is thought to play a role in programmed cell death when cells suffer nutrient deprivation [3], and MazE-MazF modules have also been implicated in the bacteriostatic effects of other addiction modules [3].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
Transition state regulatory protein abrB -