4DK1

Crystal Structure of MacA-MexA chimeric protein, containing the Pseudomonas aeruginosa MexA alpha-hairpin domain.

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	HlyD_D23_C	e4dk1A5	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: HlyD_D23_C	ECOD (1.6)
A	8a0102	e4dk1A2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: 8a0102	ECOD (1.6)
A	PRK15030_1st	e4dk1A3	A: alpha bundles	X: helical hairpin of HlyD-like secretion proteins (From Topology)	H: helical hairpin of HlyD-like secretion proteins (From Topology)	T: helical hairpin of HlyD-like secretion proteins	F: PRK15030_1st	ECOD (1.6)
A	Biotin_lipoyl_1	e4dk1A4	A: a+b complex topology	X: alpha/beta-Hammerhead/Barrel-sandwich hybrid	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Single hybrid motif	F: Biotin_lipoyl_1	ECOD (1.6)
B	HlyD_D23_C	e4dk1B2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: HlyD_D23_C	ECOD (1.6)
B	8a0102	e4dk1B1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: 8a0102	ECOD (1.6)
B	PRK15030_1st	e4dk1B4	A: alpha bundles	X: helical hairpin of HlyD-like secretion proteins (From Topology)	H: helical hairpin of HlyD-like secretion proteins (From Topology)	T: helical hairpin of HlyD-like secretion proteins	F: PRK15030_1st	ECOD (1.6)
B	Biotin_lipoyl_1	e4dk1B3	A: a+b complex topology	X: alpha/beta-Hammerhead/Barrel-sandwich hybrid	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Single hybrid motif	F: Biotin_lipoyl_1	ECOD (1.6)
C	HlyD_D23_C	e4dk1C3	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: HlyD_D23_C	ECOD (1.6)
C	8a0102	e4dk1C1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: 8a0102	ECOD (1.6)
C	PRK15030_1st	e4dk1C4	A: alpha bundles	X: helical hairpin of HlyD-like secretion proteins (From Topology)	H: helical hairpin of HlyD-like secretion proteins (From Topology)	T: helical hairpin of HlyD-like secretion proteins	F: PRK15030_1st	ECOD (1.6)
C	Biotin_lipoyl_1	e4dk1C2	A: a+b complex topology	X: alpha/beta-Hammerhead/Barrel-sandwich hybrid	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Single hybrid motif	F: Biotin_lipoyl_1	ECOD (1.6)
D	HlyD_D23_C	e4dk1D2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: HlyD_D23_C	ECOD (1.6)
D	8a0102	e4dk1D1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: 8a0102	ECOD (1.6)
D	PRK15030_1st	e4dk1D4	A: alpha bundles	X: helical hairpin of HlyD-like secretion proteins (From Topology)	H: helical hairpin of HlyD-like secretion proteins (From Topology)	T: helical hairpin of HlyD-like secretion proteins	F: PRK15030_1st	ECOD (1.6)
D	Biotin_lipoyl_1	e4dk1D3	A: a+b complex topology	X: alpha/beta-Hammerhead/Barrel-sandwich hybrid	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Single hybrid motif	F: Biotin_lipoyl_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	6.20.50.140	Special	Other non-globular	N-terminal domain of TfIIb		CATH (4.3.0)
A	2.40.30.170	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)
A	2.40.50.100	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	RNA polymerase II/Efflux pump adaptor protein, barrel-sandwich hybrid domain	CATH (4.3.0)
A	1.10.287.470	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.3.0)
B	6.20.50.140	Special	Other non-globular	N-terminal domain of TfIIb		CATH (4.3.0)
B	2.40.30.170	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)
B	2.40.50.100	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	RNA polymerase II/Efflux pump adaptor protein, barrel-sandwich hybrid domain	CATH (4.3.0)
B	1.10.287.470	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.3.0)
C	6.20.50.140	Special	Other non-globular	N-terminal domain of TfIIb		CATH (4.3.0)
C	2.40.30.170	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)
C	2.40.50.100	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	RNA polymerase II/Efflux pump adaptor protein, barrel-sandwich hybrid domain	CATH (4.3.0)
C	1.10.287.470	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.3.0)
D	6.20.50.140	Special	Other non-globular	N-terminal domain of TfIIb		CATH (4.3.0)
D	2.40.30.170	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)
D	2.40.50.100	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	RNA polymerase II/Efflux pump adaptor protein, barrel-sandwich hybrid domain	CATH (4.3.0)
D	1.10.287.470	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF00529	Cation efflux system protein CusB domain 1 (CusB_dom_1)	Cation efflux system protein CusB domain 1	-	Family
A, B, C, D	PF16576	Barrel-sandwich domain of CusB or HlyD membrane-fusion (HlyD_D23)	Barrel-sandwich domain of CusB or HlyD membrane-fusion	HlyD_D23 is the combined domains 2 and 3 of the membrane-fusion proteins CusB and HlyD, which forms a barrel-sandwich. CusB and HlyD proteins are membrane fusion proteins of the CusCFBA copper efflux system in E.coli and related bacteria. The whole ...	HlyD_D23 is the combined domains 2 and 3 of the membrane-fusion proteins CusB and HlyD, which forms a barrel-sandwich. 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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Putative MacA, Multidrug resistance protein mexA	efflux transmembrane transporter activity transporter activity transmembrane transporter activity identical protein binding protein binding binding	cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly protein homooligomerization cellular process cellular component organization or biogenesis transmembrane transport localization transport establishment of localization response to stimulus cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly protein homooligomerization cellular process cellular component organization or biogenesis transmembrane transport localization transport establishment of localization response to stimulus response to chemical response to antibiotic xenobiotic export from cell xenobiotic transport xenobiotic detoxification by transmembrane export across the plasma membrane detoxification export from cell export across plasma membrane response to toxic substance	cell periphery plasma membrane membrane cellular anatomical entity extrinsic component of membrane protein-containing complex transmembrane transporter complex membrane protein complex macrolide transmembrane transporter complex transporter complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR006143	RND efflux pump, membrane fusion protein	Family
A, B, C, D	IPR043602	Cation efflux system protein CusB, domain 1	Domain
A, B, C, D	IPR032317	RND efflux pump, membrane fusion protein, barrel-sandwich domain	Domain
A, B, C, D	IPR030190	Macrolide export protein MacA, alpha-hairpin domain superfamily	Homologous Superfamily
A, B, C, D	IPR006143	RND efflux pump, membrane fusion protein	Family
A, B, C, D	IPR032317	RND efflux pump, membrane fusion protein, barrel-sandwich domain	Domain

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.