6IOL | pdb_00006iol

Cryo-EM structure of multidrug efflux pump MexAB-OprM (60 degree state)


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
A [auth I]SCOP2B SuperfamilyHlyD C-terminal domain-like 8092210 3002572 SCOP2B (2022-06-29)
A [auth I]SCOP2B SuperfamilyHlyD beta-barrel domain-like 8041312 3002000 SCOP2B (2022-06-29)
A [auth I]SCOP2B SuperfamilySingle hybrid motif 8055550 3001880 SCOP2B (2022-06-29)
B [auth J]SCOP2B SuperfamilyHlyD beta-barrel domain-like 8041312 3002000 SCOP2B (2022-06-29)
B [auth J]SCOP2B SuperfamilySingle hybrid motif 8055550 3001880 SCOP2B (2022-06-29)
B [auth J]SCOP2B SuperfamilyHlyD C-terminal domain-like 8092210 3002572 SCOP2B (2022-06-29)
C [auth K]SCOP2B SuperfamilySingle hybrid motif 8055550 3001880 SCOP2B (2022-06-29)
C [auth K]SCOP2B SuperfamilyHlyD beta-barrel domain-like 8041312 3002000 SCOP2B (2022-06-29)
C [auth K]SCOP2B SuperfamilyHlyD C-terminal domain-like 8092210 3002572 SCOP2B (2022-06-29)
D [auth L]SCOP2B SuperfamilyHlyD beta-barrel domain-like 8041312 3002000 SCOP2B (2022-06-29)
D [auth L]SCOP2B SuperfamilyHlyD C-terminal domain-like 8092210 3002572 SCOP2B (2022-06-29)
D [auth L]SCOP2B SuperfamilySingle hybrid motif 8055550 3001880 SCOP2B (2022-06-29)
E [auth M]SCOP2B SuperfamilyHlyD C-terminal domain-like 8092210 3002572 SCOP2B (2022-06-29)
E [auth M]SCOP2B SuperfamilyHlyD beta-barrel domain-like 8041312 3002000 SCOP2B (2022-06-29)
E [auth M]SCOP2B SuperfamilySingle hybrid motif 8055550 3001880 SCOP2B (2022-06-29)
F [auth N]SCOP2B SuperfamilyHlyD beta-barrel domain-like 8041312 3002000 SCOP2B (2022-06-29)
F [auth N]SCOP2B SuperfamilyHlyD C-terminal domain-like 8092210 3002572 SCOP2B (2022-06-29)
F [auth N]SCOP2B SuperfamilySingle hybrid motif 8055550 3001880 SCOP2B (2022-06-29)
G [auth A]SCOP2B SuperfamilyOuter membrane efflux proteins (OEP) 8043654 3000246 SCOP2B (2022-06-29)
H [auth B]SCOP2B SuperfamilyOuter membrane efflux proteins (OEP) 8043654 3000246 SCOP2B (2022-06-29)
I [auth C]SCOP2B SuperfamilyOuter membrane efflux proteins (OEP) 8043654 3000246 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
A [auth I]PRK15030_2nde6iolI2 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: Alanine racemase-CF: PRK15030_2ndECOD (1.6)
A [auth I]HlyD_D23_C_1e6iolI1 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: Alanine racemase-CF: HlyD_D23_C_1ECOD (1.6)
A [auth I]PRK15030_1ste6iolI4 A: alpha bundlesX: 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 proteinsF: PRK15030_1stECOD (1.6)
A [auth I]HlyD_1ste6iolI3 A: a+b complex topologyX: alpha/beta-Hammerhead/Barrel-sandwich hybridH: alpha/beta-Hammerhead/Barrel-sandwich hybridT: Single hybrid motifF: HlyD_1stECOD (1.6)
B [auth J]PRK15030_2nde6iolJ3 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: Alanine racemase-CF: PRK15030_2ndECOD (1.6)
B [auth J]HlyD_D23_C_1e6iolJ4 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: Alanine racemase-CF: HlyD_D23_C_1ECOD (1.6)
B [auth J]PRK15030_1ste6iolJ1 A: alpha bundlesX: 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 proteinsF: PRK15030_1stECOD (1.6)
B [auth J]HlyD_1ste6iolJ2 A: a+b complex topologyX: alpha/beta-Hammerhead/Barrel-sandwich hybridH: alpha/beta-Hammerhead/Barrel-sandwich hybridT: Single hybrid motifF: HlyD_1stECOD (1.6)
C [auth K]PRK15030_2nde6iolK3 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: Alanine racemase-CF: PRK15030_2ndECOD (1.6)
C [auth K]HlyD_D23_C_1e6iolK4 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: Alanine racemase-CF: HlyD_D23_C_1ECOD (1.6)
C [auth K]PRK15030_1ste6iolK1 A: alpha bundlesX: 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 proteinsF: PRK15030_1stECOD (1.6)
C [auth K]HlyD_1ste6iolK2 A: a+b complex topologyX: alpha/beta-Hammerhead/Barrel-sandwich hybridH: alpha/beta-Hammerhead/Barrel-sandwich hybridT: Single hybrid motifF: HlyD_1stECOD (1.6)
D [auth L]PRK15030_2nde6iolL2 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: Alanine racemase-CF: PRK15030_2ndECOD (1.6)
D [auth L]HlyD_D23_C_1e6iolL3 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: Alanine racemase-CF: HlyD_D23_C_1ECOD (1.6)
D [auth L]PRK15030_1ste6iolL1 A: alpha bundlesX: 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 proteinsF: PRK15030_1stECOD (1.6)
D [auth L]HlyD_1ste6iolL4 A: a+b complex topologyX: alpha/beta-Hammerhead/Barrel-sandwich hybridH: alpha/beta-Hammerhead/Barrel-sandwich hybridT: Single hybrid motifF: HlyD_1stECOD (1.6)
E [auth M]PRK15030_2nde6iolM2 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: Alanine racemase-CF: PRK15030_2ndECOD (1.6)
E [auth M]HlyD_D23_C_1e6iolM4 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: Alanine racemase-CF: HlyD_D23_C_1ECOD (1.6)
E [auth M]PRK15030_1ste6iolM3 A: alpha bundlesX: 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 proteinsF: PRK15030_1stECOD (1.6)
E [auth M]HlyD_1ste6iolM1 A: a+b complex topologyX: alpha/beta-Hammerhead/Barrel-sandwich hybridH: alpha/beta-Hammerhead/Barrel-sandwich hybridT: Single hybrid motifF: HlyD_1stECOD (1.6)
F [auth N]PRK15030_2nde6iolN1 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: Alanine racemase-CF: PRK15030_2ndECOD (1.6)
F [auth N]HlyD_D23_C_1e6iolN2 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: Alanine racemase-CF: HlyD_D23_C_1ECOD (1.6)
F [auth N]PRK15030_1ste6iolN3 A: alpha bundlesX: 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 proteinsF: PRK15030_1stECOD (1.6)
F [auth N]HlyD_1ste6iolN4 A: a+b complex topologyX: alpha/beta-Hammerhead/Barrel-sandwich hybridH: alpha/beta-Hammerhead/Barrel-sandwich hybridT: Single hybrid motifF: HlyD_1stECOD (1.6)
G [auth A]OEPe6iolA1 A: a+b duplicates or obligate multimersX: Outer membrane efflux proteins (OEP) (From Topology)H: Outer membrane efflux proteins (OEP) (From Topology)T: Outer membrane efflux proteins (OEP)F: OEPECOD (1.6)
H [auth B]OEPe6iolB1 A: a+b duplicates or obligate multimersX: Outer membrane efflux proteins (OEP) (From Topology)H: Outer membrane efflux proteins (OEP) (From Topology)T: Outer membrane efflux proteins (OEP)F: OEPECOD (1.6)
I [auth C]OEPe6iolC1 A: a+b duplicates or obligate multimersX: Outer membrane efflux proteins (OEP) (From Topology)H: Outer membrane efflux proteins (OEP) (From Topology)T: Outer membrane efflux proteins (OEP)F: OEPECOD (1.6)
J [auth F]ACR_tran_4the6iolF5 A: alpha bundlesX: Multidrug efflux transporter AcrB transmembrane domain (From Topology)H: Multidrug efflux transporter AcrB transmembrane domain (From Topology)T: Multidrug efflux transporter AcrB transmembrane domainF: ACR_tran_4thECOD (1.6)
J [auth F]ACR_tran_1ste6iolF4 A: a+b two layersX: Alpha-beta plaitsH: Ferredoxin domains in multidrug efflux transporterT: Multidrug efflux transporter AcrB pore domainF: ACR_tran_1stECOD (1.6)
J [auth F]ACR_tran_5the6iolF7 A: a+b two layersX: Alpha-beta plaitsH: Ferredoxin domains in multidrug efflux transporterT: Multidrug efflux transporter AcrB pore domainF: ACR_tran_5thECOD (1.6)
J [auth F]ACR_tran_3rde6iolF2 A: a+b two layersX: Alpha-beta plaitsH: Ferredoxin domains in multidrug efflux transporterT: Multidrug efflux transporter AcrB pore domainF: ACR_tran_3rdECOD (1.6)
J [auth F]ACR_tran_6the6iolF3 A: a+b two layersX: Alpha-beta plaitsH: Ferredoxin domains in multidrug efflux transporterT: Multidrug efflux transporter AcrB pore domainF: ACR_tran_6thECOD (1.6)
J [auth F]ACR_tran_2nde6iolF8 A: a+b two layersX: Alpha-beta plaitsH: Ferredoxin domains in multidrug efflux transporterT: Multidrug efflux transporter AcrB TolC docking domainF: ACR_tran_2ndECOD (1.6)
J [auth F]ACR_tran_6th_1e6iolF1 A: a+b two layersX: Alpha-beta plaitsH: Ferredoxin domains in multidrug efflux transporterT: Multidrug efflux transporter AcrB TolC docking domainF: ACR_tran_6th_1ECOD (1.6)
K [auth G]ACR_tran_4the6iolG7 A: alpha bundlesX: Multidrug efflux transporter AcrB transmembrane domain (From Topology)H: Multidrug efflux transporter AcrB transmembrane domain (From Topology)T: Multidrug efflux transporter AcrB transmembrane domainF: ACR_tran_4thECOD (1.6)
K [auth G]ACR_tran_1ste6iolG6 A: a+b two layersX: Alpha-beta plaitsH: Ferredoxin domains in multidrug efflux transporterT: Multidrug efflux transporter AcrB pore domainF: ACR_tran_1stECOD (1.6)
K [auth G]ACR_tran_5the6iolG4 A: a+b two layersX: Alpha-beta plaitsH: Ferredoxin domains in multidrug efflux transporterT: Multidrug efflux transporter AcrB pore domainF: ACR_tran_5thECOD (1.6)
K [auth G]ACR_tran_3rde6iolG5 A: a+b two layersX: Alpha-beta plaitsH: Ferredoxin domains in multidrug efflux transporterT: Multidrug efflux transporter AcrB pore domainF: ACR_tran_3rdECOD (1.6)
K [auth G]ACR_tran_6the6iolG1 A: a+b two layersX: Alpha-beta plaitsH: Ferredoxin domains in multidrug efflux transporterT: Multidrug efflux transporter AcrB pore domainF: ACR_tran_6thECOD (1.6)
K [auth G]ACR_tran_2nde6iolG8 A: a+b two layersX: Alpha-beta plaitsH: Ferredoxin domains in multidrug efflux transporterT: Multidrug efflux transporter AcrB TolC docking domainF: ACR_tran_2ndECOD (1.6)
K [auth G]ACR_tran_6th_1e6iolG2 A: a+b two layersX: Alpha-beta plaitsH: Ferredoxin domains in multidrug efflux transporterT: Multidrug efflux transporter AcrB TolC docking domainF: ACR_tran_6th_1ECOD (1.6)
L [auth E]ACR_tran_4the6iolE7 A: alpha bundlesX: Multidrug efflux transporter AcrB transmembrane domain (From Topology)H: Multidrug efflux transporter AcrB transmembrane domain (From Topology)T: Multidrug efflux transporter AcrB transmembrane domainF: ACR_tran_4thECOD (1.6)
L [auth E]ACR_tran_1ste6iolE6 A: a+b two layersX: Alpha-beta plaitsH: Ferredoxin domains in multidrug efflux transporterT: Multidrug efflux transporter AcrB pore domainF: ACR_tran_1stECOD (1.6)
L [auth E]ACR_tran_5the6iolE5 A: a+b two layersX: Alpha-beta plaitsH: Ferredoxin domains in multidrug efflux transporterT: Multidrug efflux transporter AcrB pore domainF: ACR_tran_5thECOD (1.6)
L [auth E]ACR_tran_3rde6iolE3 A: a+b two layersX: Alpha-beta plaitsH: Ferredoxin domains in multidrug efflux transporterT: Multidrug efflux transporter AcrB pore domainF: ACR_tran_3rdECOD (1.6)
L [auth E]ACR_tran_6the6iolE4 A: a+b two layersX: Alpha-beta plaitsH: Ferredoxin domains in multidrug efflux transporterT: Multidrug efflux transporter AcrB pore domainF: ACR_tran_6thECOD (1.6)
L [auth E]ACR_tran_2nde6iolE1 A: a+b two layersX: Alpha-beta plaitsH: Ferredoxin domains in multidrug efflux transporterT: Multidrug efflux transporter AcrB TolC docking domainF: ACR_tran_2ndECOD (1.6)
L [auth E]ACR_tran_6th_1e6iolE2 A: a+b two layersX: Alpha-beta plaitsH: Ferredoxin domains in multidrug efflux transporterT: Multidrug efflux transporter AcrB TolC docking domainF: ACR_tran_6th_1ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
B [auth J]1.10.287.470 Mainly Alpha Orthogonal Bundle Helix Hairpins Helix hairpin binCATH (utative)
C [auth K]1.10.287.470 Mainly Alpha Orthogonal Bundle Helix Hairpins Helix hairpin binCATH (utative)
E [auth M]1.10.287.470 Mainly Alpha Orthogonal Bundle Helix Hairpins Helix hairpin binCATH (utative)
G [auth A]1.20.1600.10 Mainly Alpha Up-down Bundle Outer membrane efflux proteins (OEP) Outer membrane efflux proteins (OEP)CATH (utative)
G [auth A]2.20.200.10 Mainly Beta Single Sheet Outer membrane efflux proteins (OEP) Outer membrane efflux proteins (OEP)CATH (utative)
H [auth B]1.20.1600.10 Mainly Alpha Up-down Bundle Outer membrane efflux proteins (OEP) Outer membrane efflux proteins (OEP)CATH (utative)
H [auth B]2.20.200.10 Mainly Beta Single Sheet Outer membrane efflux proteins (OEP) Outer membrane efflux proteins (OEP)CATH (utative)
I [auth C]1.20.1600.10 Mainly Alpha Up-down Bundle Outer membrane efflux proteins (OEP) Outer membrane efflux proteins (OEP)CATH (utative)
I [auth C]2.20.200.10 Mainly Beta Single Sheet Outer membrane efflux proteins (OEP) Outer membrane efflux proteins (OEP)CATH (utative)
J [auth F]3.30.2090.10 Alpha Beta 2-Layer Sandwich Multidrug efflux transporter AcrB TolC docking domain DN and DC subdomainsCATH (utative)
K [auth G]3.30.2090.10 Alpha Beta 2-Layer Sandwich Multidrug efflux transporter AcrB TolC docking domain DN and DC subdomainsCATH (utative)
L [auth E]3.30.2090.10 Alpha Beta 2-Layer Sandwich Multidrug efflux transporter AcrB TolC docking domain DN and DC subdomainsCATH (utative)

AMR Gene: CARD Annotation CARD Database Homepage

ChainsAccessionShort NameDescriptionProvenance Source (Version)
ARO:3000377MexAMexA is the membrane fusion protein of the MexAB-OprM multidrug efflux complex.CARD (4.0.0)
G [auth A],
H [auth B],
I [auth C]
ARO:3000379OprMOprM is an outer membrane factor protein found in Pseudomonas aeruginosa and Burkholderia vietnamiensis. It is part of the MexAB-OprM, MexVW-OprM, MexXY-OprM and the AmrAB-OprM complex.CARD (4.0.0)
J [auth F],
K [auth G],
L [auth E]
ARO:3000378MexBMexB is the inner membrane multidrug exporter of the efflux complex MexAB-OprM.CARD (4.0.0)

AMR Gene Family: CARD Annotation CARD Database Homepage

ChainsAccessionGene FamilyDrug Class Resistance MachanismProvenance Source (Version)
ARO:0010004resistance-nodulation-cell division (RND) antibiotic efflux pumpmacrolide antibiotic, fluoroquinolone antibiotic, monobactam, carbapenem, cephalosporin, penicillin beta-lactam, tetracycline antibiotic, peptide antibiotic, aminocoumarin antibiotic, diaminopyrimidine antibiotic, sulfonamide antibiotic, phenicol antibioticantibiotic effluxCARD (4.0.0)
ARO:0010004resistance-nodulation-cell division (RND) antibiotic efflux pumpmacrolide antibiotic, fluoroquinolone antibiotic, monobactam, carbapenem, cephalosporin, penicillin beta-lactam, tetracycline antibiotic, peptide antibiotic, aminocoumarin antibiotic, diaminopyrimidine antibiotic, sulfonamide antibiotic, phenicol antibioticantibiotic effluxCARD (4.0.0)
ARO:0010004resistance-nodulation-cell division (RND) antibiotic efflux pumpmacrolide antibiotic, fluoroquinolone antibiotic, monobactam, carbapenem, cephalosporin, penicillin beta-lactam, tetracycline antibiotic, peptide antibiotic, aminocoumarin antibiotic, diaminopyrimidine antibiotic, sulfonamide antibiotic, phenicol antibioticantibiotic effluxCARD (4.0.0)
G [auth A],
H [auth B],
I [auth C]
ARO:0010004resistance-nodulation-cell division (RND) antibiotic efflux pumpmacrolide antibiotic, fluoroquinolone antibiotic, monobactam, aminoglycoside antibiotic, carbapenem, cephalosporin, penicillin beta-lactam, tetracycline antibiotic, peptide antibiotic, aminocoumarin antibiotic, diaminopyrimidine antibiotic, sulfonamide antibiotic, phenicol antibiotic, disinfecting agents and antisepticsantibiotic effluxCARD (4.0.0)
G [auth A],
H [auth B],
I [auth C]
ARO:0010004resistance-nodulation-cell division (RND) antibiotic efflux pumpmacrolide antibiotic, fluoroquinolone antibiotic, monobactam, aminoglycoside antibiotic, carbapenem, cephalosporin, penicillin beta-lactam, tetracycline antibiotic, peptide antibiotic, aminocoumarin antibiotic, diaminopyrimidine antibiotic, sulfonamide antibiotic, phenicol antibiotic, disinfecting agents and antisepticsantibiotic effluxCARD (4.0.0)
G [auth A],
H [auth B],
I [auth C]
ARO:0010004resistance-nodulation-cell division (RND) antibiotic efflux pumpmacrolide antibiotic, fluoroquinolone antibiotic, monobactam, aminoglycoside antibiotic, carbapenem, cephalosporin, penicillin beta-lactam, tetracycline antibiotic, peptide antibiotic, aminocoumarin antibiotic, diaminopyrimidine antibiotic, sulfonamide antibiotic, phenicol antibiotic, disinfecting agents and antisepticsantibiotic effluxCARD (4.0.0)
J [auth F],
K [auth G],
L [auth E]
ARO:0010004resistance-nodulation-cell division (RND) antibiotic efflux pumpmacrolide antibiotic, fluoroquinolone antibiotic, monobactam, carbapenem, cephalosporin, penicillin beta-lactam, tetracycline antibiotic, peptide antibiotic, aminocoumarin antibiotic, diaminopyrimidine antibiotic, sulfonamide antibiotic, phenicol antibioticantibiotic effluxCARD (4.0.0)
J [auth F],
K [auth G],
L [auth E]
ARO:0010004resistance-nodulation-cell division (RND) antibiotic efflux pumpmacrolide antibiotic, fluoroquinolone antibiotic, monobactam, carbapenem, cephalosporin, penicillin beta-lactam, tetracycline antibiotic, peptide antibiotic, aminocoumarin antibiotic, diaminopyrimidine antibiotic, sulfonamide antibiotic, phenicol antibioticantibiotic effluxCARD (4.0.0)
J [auth F],
K [auth G],
L [auth E]
ARO:0010004resistance-nodulation-cell division (RND) antibiotic efflux pumpmacrolide antibiotic, fluoroquinolone antibiotic, monobactam, carbapenem, cephalosporin, penicillin beta-lactam, tetracycline antibiotic, peptide antibiotic, aminocoumarin antibiotic, diaminopyrimidine antibiotic, sulfonamide antibiotic, phenicol antibioticantibiotic effluxCARD (4.0.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF00529Cation efflux system protein CusB domain 1 (CusB_dom_1)Cation efflux system protein CusB domain 1- Family
PF16576Barrel-sandwich domain of CusB or HlyD membrane-fusion (HlyD_D23)Barrel-sandwich domain of CusB or HlyD membrane-fusionThis 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 ...Domain
G [auth A],
H [auth B],
I [auth C]
PF02321Outer membrane efflux protein (OEP)Outer membrane efflux protein- Family
J [auth F],
K [auth G],
L [auth E]
PF00873AcrB/AcrD/AcrF family (ACR_tran)AcrB/AcrD/AcrF family- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Multidrug resistance protein MexA
G [auth A],
H [auth B],
I [auth C]
Outer membrane protein OprM
J [auth F],
K [auth G],
L [auth E]
Multidrug resistance protein MexB