Annotations: 2K33

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	HlyD_1st_1	e2k33A1	A: a+b complex topology	X: alpha/beta-Hammerhead/Barrel-sandwich hybrid	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Single hybrid motif	F: HlyD_1st_1	ECOD (1.6)

Chains	Accession	Name	Description	Comments	Source
A	PF16576	Barrel-sandwich domain of CusB or HlyD membrane-fusion (HlyD_D23)	Barrel-sandwich domain of CusB or HlyD membrane-fusion	This entry represents a domain comprising the combined domains 2 and 3 of the membrane-fusion proteins CusB and HlyD. It is formed by a barrel-sandwich domain which is inserted in a RIFT-like domain. The barrel-sandwich domain, itself, contains an in ...	This entry represents a domain comprising the combined domains 2 and 3 of the membrane-fusion proteins CusB and HlyD. It is formed by a barrel-sandwich domain which is inserted in a RIFT-like domain. The barrel-sandwich domain, itself, contains an insert of a three-helical bundle subdomain. CusB and HlyD proteins are membrane fusion proteins of the CusCFBA copper efflux system in E.coli and related bacteria. The whole molecule hinges between D2 and D3. Efflux systems of this resistance-nodulation-division group - RND - have been developed to excrete poisonous metal ions, and in E.coli the only one that deals with silver and copper is the CusA transporter. The transporter CusA works in conjunction with a periplasmic component that is a membrane fusion protein, eg CusB, and an outer-membrane channel component CusC in a CusABC complex driven by import of protons.	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	AcrA	transporter activity transmembrane transporter activity	response to stimulus response to chemical response to antibiotic	cell periphery cellular anatomical structure plasma membrane membrane cell envelope

Chains	Accession	Name	Type
A	IPR051160	Membrane Fusion Protein (MFP) Efflux	Family
A	IPR006143	RND efflux pump, membrane fusion protein	Family
A	IPR032317	RND efflux pump, membrane fusion protein, barrel-sandwich domain	Domain