3KXR

Structure of the cystathionine beta-synthase pair domain of the putative Mg2+ transporter SO5017 from Shewanella oneidensis MR-1.


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AF_UNCLASSIFIEDe3kxrA2 A: alpha superhelicesX: Repetitive alpha hairpinsH: MgtE N-terminal domain-like (From Topology)T: MgtE N-terminal domain-likeF: F_UNCLASSIFIEDECOD (1.6)
APF00571e3kxrA1 A: a+b duplicates or obligate multimersX: CBS-domain (From Topology)H: CBS-domain (From Topology)T: CBS-domainF: PF00571ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A1.20.50.50 Mainly Alpha Up-down Bundle Pheromone ER-1 CATH (4.3.0)
A3.10.580.10 Alpha Beta Roll CBS-domain CBS-domainCATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF00571CBS domain (CBS)CBS domainCBS domains are small intracellular modules that pair together to form a stable globular domain [2]. This family represents a single CBS domain. Pairs of these domains have been termed a Bateman domain [6]. CBS domains have been shown to bind ligands ...CBS domains are small intracellular modules that pair together to form a stable globular domain [2]. This family represents a single CBS domain. Pairs of these domains have been termed a Bateman domain [6]. CBS domains have been shown to bind ligands with an adenosyl group such as AMP, ATP and S-AdoMet [5]. CBS domains are found attached to a wide range of other protein domains suggesting that CBS domains may play a regulatory role making proteins sensitive to adenosyl carrying ligands. The region containing the CBS domains in Cystathionine-beta synthase is involved in regulation by S-AdoMet [4]. CBS domain pairs from AMPK bind AMP or ATP [5]. The CBS domains from IMPDH and the chloride channel CLC2 bind ATP [5].
Domain
PF03448MgtE intracellular N domain (MgtE_N)MgtE intracellular N domainThis domain is found at the N-terminus of eubacterial magnesium transporters of the MgtE family Pfam:PF01769. This domain is an intracellular domain that has an alpha-helical structure. The crystal structure of the MgtE transporter [1] shows two of 5 ...This domain is found at the N-terminus of eubacterial magnesium transporters of the MgtE family Pfam:PF01769. This domain is an intracellular domain that has an alpha-helical structure. The crystal structure of the MgtE transporter [1] shows two of 5 magnesium ions are in the interface between the N domain and the CBS domains. In the absence of magnesium there is a large shift between the N and CBS domains.
Domain