Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 FamilyArgK-like 8058231 4003989 SCOP2 (2022-06-29)
ASCOP2 SuperfamilySimibi-like P-loop NTPases 8058232 3002018 SCOP2 (2022-06-29)
BSCOP2B SuperfamilySimibi-like P-loop NTPases 8058232 3002018 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AArgKe4lc1A1 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: ArgKECOD (1.6)
BArgKe4lc1B1 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: ArgKECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF03308Methylmalonyl Co-A mutase-associated GTPase MeaB (MeaB)Methylmalonyl Co-A mutase-associated GTPase MeaBFamily members were previously thought to be ArgK proteins acting as ATPase enzymes and kinases. They are now believed to be methylmalonyl Co-A mutase-associated GTPase MeaB. Structural studies of MeaB and the human ortholog (methylmalonyl associated ...Family members were previously thought to be ArgK proteins acting as ATPase enzymes and kinases. They are now believed to be methylmalonyl Co-A mutase-associated GTPase MeaB. Structural studies of MeaB and the human ortholog (methylmalonyl associated protein A) MMAA, reveal alpha-helical domains at the N- and C-termini as well as a Ras-like GTPase domain. Mutational analysis of MeaB, show prohibited growth in Methylobacterium due to the inability to convert methylmalonyl-CoA to succinyl-CoA caused by an inactive form of methylmalonyl-CoA mutatase (mcm). In humans, mutations in (MMAA) are associated with the fatal disease methylmalonyl aciduria [1].
Domain

InterPro: Protein Family Classification InterPro Database Homepage