Annotations: 4R9X

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	CutC	e4r9xA1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: CutC	ECOD (1.6)
B	CutC	e4r9xB1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: CutC	ECOD (1.6)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.20.20.380	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Copper homeostasis (CutC) domain	CATH (4.3.0)
B	3.20.20.380	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Copper homeostasis (CutC) domain	CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
A, B	PF03932	CutC family (CutC)	CutC family	Copper homeostasis protein CutC was originally thought to be involved in copper tolerance in Escherichia coli, as mutation in the corresponding gene lead to an increased copper sensitivity [1]. However, this phenotype has been later reported to depen ...	Copper homeostasis protein CutC was originally thought to be involved in copper tolerance in Escherichia coli, as mutation in the corresponding gene lead to an increased copper sensitivity [1]. However, this phenotype has been later reported to depend on the levels of he mRNA-interfering complementary RNA regulator MicL, which is transcribed from a promoter located within the coding sequence of the cutC gene in enterobacteria [2]. In the plant pathogen Xylella fastidiosa, this protein has been reported as specific for copper efflux [3]. The structure of this protein in the bacteria Shigella flexneri showed a monomer structure that adopts a common TIM beta/alpha barrel with eight beta strands surrounded by eight alpha-helices [4]. The human homologue of this protein, whose structure showed a potential copper-binding site, has an important role in intracellular copper homeostasis [5,6].	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Copper homeostasis protein CutC	cation binding transition metal ion binding copper ion binding ion binding binding metal ion binding small molecule binding	-	cellular anatomical structure intracellular anatomical structure cytoplasm