1VF7 | pdb_00001vf7

Crystal structure of the membrane fusion protein, MexA of the multidrug transporter

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: mpstruc

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
M	d1vf7m_	Membrane and cell surface proteins and peptides	HlyD-like secretion proteins	HlyD-like secretion proteins	HlyD-like secretion proteins	Multidrug resistance protein MexA domain	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
L	d1vf7l_	Membrane and cell surface proteins and peptides	HlyD-like secretion proteins	HlyD-like secretion proteins	HlyD-like secretion proteins	Multidrug resistance protein MexA domain	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
K	d1vf7k_	Membrane and cell surface proteins and peptides	HlyD-like secretion proteins	HlyD-like secretion proteins	HlyD-like secretion proteins	Multidrug resistance protein MexA domain	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
J	d1vf7j_	Membrane and cell surface proteins and peptides	HlyD-like secretion proteins	HlyD-like secretion proteins	HlyD-like secretion proteins	Multidrug resistance protein MexA domain	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
I	d1vf7i_	Membrane and cell surface proteins and peptides	HlyD-like secretion proteins	HlyD-like secretion proteins	HlyD-like secretion proteins	Multidrug resistance protein MexA domain	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
H	d1vf7h_	Membrane and cell surface proteins and peptides	HlyD-like secretion proteins	HlyD-like secretion proteins	HlyD-like secretion proteins	Multidrug resistance protein MexA domain	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
G	d1vf7g_	Membrane and cell surface proteins and peptides	HlyD-like secretion proteins	HlyD-like secretion proteins	HlyD-like secretion proteins	Multidrug resistance protein MexA domain	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
F	d1vf7f_	Membrane and cell surface proteins and peptides	HlyD-like secretion proteins	HlyD-like secretion proteins	HlyD-like secretion proteins	Multidrug resistance protein MexA domain	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
E	d1vf7e_	Membrane and cell surface proteins and peptides	HlyD-like secretion proteins	HlyD-like secretion proteins	HlyD-like secretion proteins	Multidrug resistance protein MexA domain	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
D	d1vf7d_	Membrane and cell surface proteins and peptides	HlyD-like secretion proteins	HlyD-like secretion proteins	HlyD-like secretion proteins	Multidrug resistance protein MexA domain	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
C	d1vf7c_	Membrane and cell surface proteins and peptides	HlyD-like secretion proteins	HlyD-like secretion proteins	HlyD-like secretion proteins	Multidrug resistance protein MexA domain	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
B	d1vf7b_	Membrane and cell surface proteins and peptides	HlyD-like secretion proteins	HlyD-like secretion proteins	HlyD-like secretion proteins	Multidrug resistance protein MexA domain	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
A	d1vf7a_	Membrane and cell surface proteins and peptides	HlyD-like secretion proteins	HlyD-like secretion proteins	HlyD-like secretion proteins	Multidrug resistance protein MexA domain	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
M	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
M	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
M	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
M	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
L	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
L	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
L	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
L	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
K	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
K	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
K	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
K	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
J	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
J	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
J	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
J	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
I	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
I	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
I	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
I	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	HlyD beta-barrel domain-like	8041312	3002000	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Single hybrid motif	8055550	3001880	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
M	HlyD_D23_C_1	e1vf7M1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: HlyD_D23_C_1	ECOD (1.6)
M	PRK15030_1st	e1vf7M2	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)
M	HlyD_1st	e1vf7M3	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	ECOD (1.6)
L	HlyD_D23_C_1	e1vf7L4	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: HlyD_D23_C_1	ECOD (1.6)
L	PRK15030_1st	e1vf7L5	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)
L	HlyD_1st	e1vf7L6	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	ECOD (1.6)
K	HlyD_D23_C_1	e1vf7K4	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: HlyD_D23_C_1	ECOD (1.6)
K	PRK15030_1st	e1vf7K5	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)
K	HlyD_1st	e1vf7K6	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	ECOD (1.6)
J	HlyD_D23_C_1	e1vf7J4	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: HlyD_D23_C_1	ECOD (1.6)
J	PRK15030_1st	e1vf7J5	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)
J	HlyD_1st	e1vf7J6	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	ECOD (1.6)
I	HlyD_D23_C_1	e1vf7I4	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: HlyD_D23_C_1	ECOD (1.6)
I	PRK15030_1st	e1vf7I5	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)
I	HlyD_1st	e1vf7I6	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	ECOD (1.6)
H	HlyD_D23_C_1	e1vf7H4	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: HlyD_D23_C_1	ECOD (1.6)
H	PRK15030_1st	e1vf7H5	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)
H	HlyD_1st	e1vf7H6	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	ECOD (1.6)
G	HlyD_D23_C_1	e1vf7G4	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: HlyD_D23_C_1	ECOD (1.6)
G	PRK15030_1st	e1vf7G5	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)
G	HlyD_1st	e1vf7G6	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	ECOD (1.6)
F	HlyD_D23_C_1	e1vf7F4	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: HlyD_D23_C_1	ECOD (1.6)
F	PRK15030_1st	e1vf7F5	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)
F	HlyD_1st	e1vf7F6	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	ECOD (1.6)
E	HlyD_D23_C_1	e1vf7E1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: HlyD_D23_C_1	ECOD (1.6)
E	PRK15030_1st	e1vf7E3	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)
E	HlyD_1st	e1vf7E2	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	ECOD (1.6)
D	HlyD_D23_C_1	e1vf7D4	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: HlyD_D23_C_1	ECOD (1.6)
D	PRK15030_1st	e1vf7D5	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	HlyD_1st	e1vf7D6	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	ECOD (1.6)
C	HlyD_D23_C_1	e1vf7C4	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: HlyD_D23_C_1	ECOD (1.6)
C	PRK15030_1st	e1vf7C5	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	HlyD_1st	e1vf7C6	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	ECOD (1.6)
B	HlyD_D23_C_1	e1vf7B4	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: HlyD_D23_C_1	ECOD (1.6)
B	PRK15030_1st	e1vf7B5	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	HlyD_1st	e1vf7B6	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	ECOD (1.6)
A	HlyD_D23_C_1	e1vf7A1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: HlyD_D23_C_1	ECOD (1.6)
A	PRK15030_1st	e1vf7A2	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	HlyD_1st	e1vf7A3	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	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
M	2.40.30.170	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.2.0)
M	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 (4.2.0)
M	1.10.287.470	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.2.0)
L	2.40.30.170	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.2.0)
L	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 (4.2.0)
L	1.10.287.470	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.2.0)
K	2.40.30.170	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.2.0)
K	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 (4.2.0)
K	1.10.287.470	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.2.0)
J	2.40.30.170	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.2.0)
J	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 (4.2.0)
J	1.10.287.470	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.2.0)
I	2.40.30.170	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.2.0)
I	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 (4.2.0)
I	1.10.287.470	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.2.0)
H	2.40.30.170	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.2.0)
H	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 (4.2.0)
H	1.10.287.470	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.2.0)
G	2.40.30.170	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.2.0)
G	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 (4.2.0)
G	1.10.287.470	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.2.0)
F	2.40.30.170	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.2.0)
F	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 (4.2.0)
F	1.10.287.470	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.2.0)
E	2.40.30.170	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.2.0)
E	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 (4.2.0)
E	1.10.287.470	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.2.0)
D	2.40.30.170	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.2.0)
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 (4.2.0)
D	1.10.287.470	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.2.0)
C	2.40.30.170	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.2.0)
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 (4.2.0)
C	1.10.287.470	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.2.0)
B	2.40.30.170	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.2.0)
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 (4.2.0)
B	1.10.287.470	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.2.0)
A	2.40.30.170	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.2.0)
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 (4.2.0)
A	1.10.287.470	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.2.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M	PF25876	RND MFP, alpha-helical hairpin domain (HH_MFP_RND)	RND MFP, alpha-helical hairpin domain	This domain is found in the periplasmic membrane fusion proteins (MFPs) that are components of the RND tripartite drug efflux pumps. MFPs bridge the outer membrane factor and an inner membrane transporter. The most characterized MFP AcrA connects the ...	This domain is found in the periplasmic membrane fusion proteins (MFPs) that are components of the RND tripartite drug efflux pumps. MFPs bridge the outer membrane factor and an inner membrane transporter. The most characterized MFP AcrA connects the outer membrane factor TolC and the resistance- nodulation-division-type efflux transporter AcrB, which is a major multidrug efflux pump in Escherichia coli [1]. The alpha -helical hairpin domain of AcrA shows conformational flexibility, which has potential mechanistic significance in coupling between AcrA conformations and TolC channel opening [1].	Domain
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M	PF25917	RND MFP, barrel-sandwich hybrid domain (BSH_RND)	RND MFP, barrel-sandwich hybrid domain	This domain is found in the periplasmic membrane fusion proteins (MFPs) that are components of the RND tripartite drug efflux pumps. MFPs bridge the outer membrane factor and an inner membrane transporter. The most characterized MFP AcrA connects the ...	This domain is found in the periplasmic membrane fusion proteins (MFPs) that are components of the RND tripartite drug efflux pumps. MFPs bridge the outer membrane factor and an inner membrane transporter. The most characterized MFP AcrA connects the outer membrane factor TolC and the resistance-nodulation-division-type efflux transporter AcrB, which is a major multidrug efflux pump in Escherichia coli [1]. The barrel-sandwich hybrid domain is an important structural feature found in membrane fusion proteins. This domain plays a crucial role in the assembly and function of tripartite drug efflux systems [2]. It is involved in interactions with the other components of the RND pumps.	Domain
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M	PF25967	RND MFPs, C-terminal permuted SH3 domain (RND-MFP_C)	RND MFPs, C-terminal permuted SH3 domain	This domain is found in the periplasmic membrane fusion proteins (MFPs) that are components of the RND tripartite drug efflux pumps. MFPs bridge the outer membrane factor and an inner membrane transporter. The most characterized MFP AcrA connects the ...	This domain is found in the periplasmic membrane fusion proteins (MFPs) that are components of the RND tripartite drug efflux pumps. MFPs bridge the outer membrane factor and an inner membrane transporter. The most characterized MFP AcrA connects the outer membrane factor TolC and the resistance- nodulation-division-type efflux transporter AcrB, which is a major multidrug efflux pump in Escherichia coli [1]. Another member MexA, a Pseudomonas aeruginosa homolog of AcrA, is a component of the tripartite multidrug efflux system MexAB-OprM which is a major factor for antibiotic resistance by exporting a large variety of antimicrobial compounds [2]. The domain represented by this entry folds into an open barrel with a circularly permuted topology of SH3-like barrels. This domain is involved in interactions with efflux pump membrane transporter.	Domain
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M	PF25944	RND MFPs, beta-barrel domain (Beta-barrel_RND)	RND MFPs, beta-barrel domain	This domain is found in the periplasmic membrane fusion proteins (MFPs) that are components of the RND tripartite drug efflux pumps. MFPs bridge the outer membrane factor and an inner membrane transporter. The most characterized MFP AcrA connects the ...	This domain is found in the periplasmic membrane fusion proteins (MFPs) that are components of the RND tripartite drug efflux pumps. MFPs bridge the outer membrane factor and an inner membrane transporter. The most characterized MFP AcrA connects the outer membrane factor TolC and the resistance- nodulation-division-type efflux transporter AcrB, which is a major multidrug efflux pump in Escherichia coli [1,2]. The domain represented in this entry folds into a six-stranded closed beta-barrel with a greek-key topology which has a structural similarity to the C-terminal domain of alanine racemase. This domain is interrupted by the barrel-sandwich hybrid domain which is inserted after the first beta-strand of the barrel. This model does not include the N-terminal strand.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M	Multidrug resistance protein mexA	efflux transmembrane transporter activity transporter activity transmembrane transporter activity identical protein binding protein binding binding	xenobiotic transport response to stimulus transport detoxification export across cell outer membrane xenobiotic detoxification by transmembrane export across the cell outer membrane establishment of localization response to toxic substance transmembrane transport localization response to chemical cellular process cellular component organization cellular component biogenesis xenobiotic transport response to stimulus transport detoxification export across cell outer membrane xenobiotic detoxification by transmembrane export across the cell outer membrane establishment of localization response to toxic substance transmembrane transport localization response to chemical cellular process cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly protein homooligomerization cellular component organization or biogenesis response to antibiotic	cell periphery cellular anatomical structure plasma membrane membrane protein-containing complex efflux pump complex transmembrane transporter complex membrane protein complex transporter complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M	IPR043602	CusB-like_dom_1	Unknown
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M	IPR051160	MFP_Efflux	Unknown
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M	IPR032317	CusB_D23	Unknown
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M	IPR006143	RND efflux pump, membrane fusion protein	Family

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Multi-Drug Efflux Transporters	MexA membrane fusion protein