8ZAR | pdb_00008zar

EmrAB-TolC MFS-type tripartite multidrug efflux pump FA

External Resource: Annotation

Domain Annotation: SCOP2 Classification
AMR Gene: CARD Annotation
AMR Gene Family: CARD Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
H [auth G]	SCOP2B Superfamily	Outer membrane efflux proteins (OEP)	8037933	3000246	SCOP2B (2022-06-29)
J [auth I]	SCOP2B Superfamily	Outer membrane efflux proteins (OEP)	8037933	3000246	SCOP2B (2022-06-29)
I [auth H]	SCOP2B Superfamily	Outer membrane efflux proteins (OEP)	8037933	3000246	SCOP2B (2022-06-29)

AMR Gene: CARD Annotation CARD Database Homepage

Chains	Accession	Short Name	Description	Provenance Source (Version)
H [auth G], I [auth H], J [auth I]	ARO:3000237	TolC	TolC is a protein subunit of many multidrug efflux complexes in Gram negative bacteria. It is an outer membrane efflux protein and is constitutively open. Regulation of efflux activity is often at its periplasmic entrance by other components of the efflux complex.	CARD (4.0.1)
G [auth J]	ARO:3000074	emrB	emrB is a translocase in the emrB -TolC efflux protein in E. coli. It recognizes substrates including carbonyl cyanide m-chlorophenylhydrazone (CCCP), nalidixic acid, and thioloactomycin.	CARD (4.0.1)
A, B, C, D, E A, B, C, D, E, F	ARO:3000027	emrA	EmrA is a membrane fusion protein, providing an efflux pathway with EmrB and TolC between the inner and outer membranes of E. coli, a Gram-negative bacterium.	CARD (4.0.1)

AMR Gene Family: CARD Annotation CARD Database Homepage

Chains	Accession	Gene Family	Drug Class	Resistance Machanism	Provenance Source (Version)
H [auth G], I [auth H], J [auth I]	ARO:0010004	resistance-nodulation-cell division (RND) antibiotic efflux pump	macrolide antibiotic, fluoroquinolone antibiotic, aminoglycoside antibiotic, carbapenem, cephalosporin, glycylcycline, penicillin beta-lactam, tetracycline antibiotic, peptide antibiotic, aminocoumarin antibiotic, rifamycin antibiotic, phenicol antibiotic, disinfecting agents and antiseptics	antibiotic efflux	CARD (4.0.1)
G [auth J]	ARO:0010002	major facilitator superfamily (MFS) antibiotic efflux pump	fluoroquinolone antibiotic	antibiotic efflux	CARD (4.0.1)
G [auth J]	ARO:0010002	major facilitator superfamily (MFS) antibiotic efflux pump	fluoroquinolone antibiotic	antibiotic efflux	CARD (4.0.1)
A, B, C, D, E A, B, C, D, E, F	ARO:0010002	major facilitator superfamily (MFS) antibiotic efflux pump	fluoroquinolone antibiotic	antibiotic efflux	CARD (4.0.1)
A, B, C, D, E A, B, C, D, E, F	ARO:0010002	major facilitator superfamily (MFS) antibiotic efflux pump	fluoroquinolone antibiotic	antibiotic efflux	CARD (4.0.1)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
H [auth G], I [auth H], J [auth I]	PF02321	Outer membrane efflux protein (OEP)	Outer membrane efflux protein	-	Family
G [auth J]	PF07690	Major Facilitator Superfamily (MFS_1)	Major Facilitator Superfamily	-	Family
A, B, C, D, E A, B, C, D, E, F	PF25963	AAEA-like beta-barrel domain (Beta-barrel_AAEA)	AAEA-like beta-barrel domain	This domain is found in the AaeA protein which is a component of the p-hydroxybenzoic acid (pHBA) efflux pump in Escherichia coli [1] and related proteins. AaeA forms an efflux pump with AaeB, which functions to export certain aromatic carboxylic aci ...	This domain is found in the AaeA protein which is a component of the p-hydroxybenzoic acid (pHBA) efflux pump in Escherichia coli [1] and related proteins. AaeA forms an efflux pump with AaeB, which functions to export certain aromatic carboxylic acids from the cell. The AaeAB efflux system serves as a 'metabolic relief valve' to alleviate toxic effects of imbalanced metabolism by eliminating specific compounds when they accumulate to high levels in the cell [1]. 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
A, B, C, D, E A, B, C, D, E, F	PF25885	EMRA, alpha-helical hairpin domain (HH_EMRA)	EMRA, alpha-helical hairpin domain	This domain is found in the Multidrug export protein EmrA and related proteins, including its paralogue ErmK. EmrA is a crucial component of the EmrAB-TolC efflux system in Escherichia coli, which plays a significant role in conferring resistance to ...	This domain is found in the Multidrug export protein EmrA and related proteins, including its paralogue ErmK. EmrA is a crucial component of the EmrAB-TolC efflux system in Escherichia coli, which plays a significant role in conferring resistance to various antibiotics and toxic compounds [1,2]. This protein bridges the inner membrane transporter EmrB and the outer membrane channel TolC and thus facilitates the export of substances across both membranes.	Domain
A, B, C, D, E A, B, C, D, E, F	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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
H [auth G], I [auth H], J [auth I]	Outer membrane protein TolC	wide pore channel activity passive transmembrane transporter activity channel activity porin activity transporter activity transmembrane transporter activity lipid transporter activity lipid transmembrane transporter activity monocarboxylic acid transmembrane transporter activity carboxylic acid transmembrane transporter activity bile acid transmembrane transporter activity monoatomic ion channel activity monoatomic ion transmembrane transporter activity efflux transmembrane transporter activity wide pore channel activity passive transmembrane transporter activity channel activity porin activity transporter activity transmembrane transporter activity lipid transporter activity lipid transmembrane transporter activity monocarboxylic acid transmembrane transporter activity carboxylic acid transmembrane transporter activity bile acid transmembrane transporter activity monoatomic ion channel activity monoatomic ion transmembrane transporter activity efflux transmembrane transporter activity identical protein binding protein binding binding enterobactin transmembrane transporter activity siderophore-iron transmembrane transporter activity iron chelate transmembrane transporter activity	response to stimulus response to chemical response to xenobiotic stimulus xenobiotic transport 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 cellular process response to antibiotic response to stimulus response to chemical response to xenobiotic stimulus xenobiotic transport 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 cellular process response to antibiotic monoatomic ion transmembrane transport monoatomic ion transport organic anion transport carboxylic acid transport lipid localization bile acid and bile salt transport lipid transport organic hydroxy compound transport organic acid transport monocarboxylic acid transport macromolecule localization siderophore transport iron ion transport metal ion transport enterobactin transport transition metal ion transport monoatomic cation transport iron coordination entity transport xenobiotic export from cell xenobiotic detoxification by transmembrane export across the plasma membrane export from cell export across plasma membrane	cellular anatomical structure membrane protein-containing complex efflux pump complex transmembrane transporter complex membrane protein complex transporter complex cell periphery cell surface periplasmic side of plasma membrane plasma membrane external side of plasma membrane side of membrane MacAB-TolC complex cellular anatomical structure membrane protein-containing complex efflux pump complex transmembrane transporter complex membrane protein complex transporter complex cell periphery cell surface periplasmic side of plasma membrane plasma membrane external side of plasma membrane side of membrane MacAB-TolC complex macrolide transmembrane transporter complex cell outer membrane external encapsulating structure cell envelope outer membrane
G [auth J]	Multidrug export protein EmrB	transporter activity transmembrane transporter activity lipid transporter activity lipid transmembrane transporter activity monocarboxylic acid transmembrane transporter activity carboxylic acid transmembrane transporter activity bile acid transmembrane transporter activity	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 response to lipid response to hormone 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 response to lipid response to hormone response to steroid hormone response to endogenous stimulus response to antibiotic organic anion transport carboxylic acid transport lipid localization bile acid and bile salt transport lipid transport organic hydroxy compound transport organic acid transport monocarboxylic acid transport macromolecule localization xenobiotic export from cell xenobiotic detoxification by transmembrane export across the plasma membrane export from cell export across plasma membrane	protein-containing complex cellular anatomical structure efflux pump complex transmembrane transporter complex membrane membrane protein complex transporter complex cell periphery plasma membrane cell surface periplasmic side of plasma membrane external side of plasma membrane side of membrane
A, B, C, D, E A, B, C, D, E, F	Multidrug export protein EmrA	lipid transporter activity lipid transmembrane transporter activity transporter activity monocarboxylic acid transmembrane transporter activity carboxylic acid transmembrane transporter activity transmembrane transporter activity bile acid transmembrane transporter activity xenobiotic 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 response to lipid response to hormone 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 response to lipid response to hormone response to steroid hormone response to endogenous stimulus response to antibiotic organic anion transport carboxylic acid transport lipid localization bile acid and bile salt transport lipid transport organic hydroxy compound transport organic acid transport monocarboxylic acid transport macromolecule localization xenobiotic export from cell xenobiotic detoxification by transmembrane export across the plasma membrane export from cell export across plasma membrane	protein-containing complex cellular anatomical structure efflux pump complex transmembrane transporter complex membrane membrane protein complex transporter complex cell periphery plasma membrane cell surface periplasmic side of plasma membrane external side of plasma membrane side of membrane outer membrane-bounded periplasmic space protein-containing complex cellular anatomical structure efflux pump complex transmembrane transporter complex membrane membrane protein complex transporter complex cell periphery plasma membrane cell surface periplasmic side of plasma membrane external side of plasma membrane side of membrane outer membrane-bounded periplasmic space cell envelope periplasmic space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
H [auth G], I [auth H], J [auth I]	IPR058622	Outer membrane channel protein TolC	Family
H [auth G], I [auth H], J [auth I]	IPR010130	Type I secretion outer membrane protein, TolC	Family
H [auth G], I [auth H], J [auth I]	IPR051906	Outer membrane protein TolC-like	Family
H [auth G], I [auth H], J [auth I]	IPR003423	Outer membrane efflux protein	Family
G [auth J]	IPR004638	Drug resistance transporter EmrB-like	Family
G [auth J]	IPR011701	Major facilitator superfamily	Family
G [auth J]	IPR036259	MFS transporter superfamily	Homologous Superfamily
G [auth J]	IPR020846	Major facilitator superfamily domain	Domain
A, B, C, D, E A, B, C, D, E, F	IPR058633	Multidrug export protein EmrA/FarA, alpha-helical hairpin domain	Domain
A, B, C, D, E A, B, C, D, E, F	IPR050739	Membrane Fusion Protein	Family
A, B, C, D, E A, B, C, D, E, F	IPR058634	p-hydroxybenzoic acid efflux pump subunit AaeA-like, beta-barrel domain	Domain
A, B, C, D, E A, B, C, D, E, F	IPR005694	Membrane fusion proteins, proteobacteria	Family

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.