Annotations: 5NIK

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Outer membrane efflux proteins (OEP)	8037933	3000246	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Outer membrane efflux proteins (OEP)	8037933	3000246	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Outer membrane efflux proteins (OEP)	8037933	3000246	SCOP2B (2022-06-29)
J	SCOP2B Superfamily	GBAA_5634-like	8106452	3002779	SCOP2B (2022-06-29)
K	SCOP2B Superfamily	GBAA_5634-like	8106452	3002779	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)
A	PF02321	e5nikA1	A: a+b duplicates or obligate multimers	X: Outer membrane efflux proteins (OEP) (From Topology)	H: Outer membrane efflux proteins (OEP) (From Topology)	T: Outer membrane efflux proteins (OEP)	F: PF02321	ECOD (1.6)
B	PF02321	e5nikB1	A: a+b duplicates or obligate multimers	X: Outer membrane efflux proteins (OEP) (From Topology)	H: Outer membrane efflux proteins (OEP) (From Topology)	T: Outer membrane efflux proteins (OEP)	F: PF02321	ECOD (1.6)
C	PF02321	e5nikC1	A: a+b duplicates or obligate multimers	X: Outer membrane efflux proteins (OEP) (From Topology)	H: Outer membrane efflux proteins (OEP) (From Topology)	T: Outer membrane efflux proteins (OEP)	F: PF02321	ECOD (1.6)
D	F_UNCLASSIFIED	e5nikD2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: F_UNCLASSIFIED	ECOD (1.6)
D	PF13437	e5nikD3	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: PF13437	ECOD (1.6)
D	F_UNCLASSIFIED	e5nikD4	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: F_UNCLASSIFIED	ECOD (1.6)
D	PF13533	e5nikD1	A: a+b complex topology	X: alpha/beta-Hammerhead/Barrel-sandwich hybrid	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Single hybrid motif	F: PF13533	ECOD (1.6)
E	F_UNCLASSIFIED	e5nikE3	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: F_UNCLASSIFIED	ECOD (1.6)
E	PF13437	e5nikE1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: PF13437	ECOD (1.6)
E	F_UNCLASSIFIED	e5nikE4	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: F_UNCLASSIFIED	ECOD (1.6)
E	PF13533	e5nikE2	A: a+b complex topology	X: alpha/beta-Hammerhead/Barrel-sandwich hybrid	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Single hybrid motif	F: PF13533	ECOD (1.6)
F	F_UNCLASSIFIED	e5nikF3	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: F_UNCLASSIFIED	ECOD (1.6)
F	PF13437	e5nikF4	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: PF13437	ECOD (1.6)
F	F_UNCLASSIFIED	e5nikF1	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: F_UNCLASSIFIED	ECOD (1.6)
F	PF13533	e5nikF2	A: a+b complex topology	X: alpha/beta-Hammerhead/Barrel-sandwich hybrid	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Single hybrid motif	F: PF13533	ECOD (1.6)
G	F_UNCLASSIFIED	e5nikG3	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: F_UNCLASSIFIED	ECOD (1.6)
G	PF13437	e5nikG1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: PF13437	ECOD (1.6)
G	F_UNCLASSIFIED	e5nikG4	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: F_UNCLASSIFIED	ECOD (1.6)
G	PF13533	e5nikG2	A: a+b complex topology	X: alpha/beta-Hammerhead/Barrel-sandwich hybrid	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Single hybrid motif	F: PF13533	ECOD (1.6)
H	F_UNCLASSIFIED	e5nikH1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: F_UNCLASSIFIED	ECOD (1.6)
H	PF13437	e5nikH2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: PF13437	ECOD (1.6)
H	F_UNCLASSIFIED	e5nikH4	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: F_UNCLASSIFIED	ECOD (1.6)
H	PF13533	e5nikH3	A: a+b complex topology	X: alpha/beta-Hammerhead/Barrel-sandwich hybrid	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Single hybrid motif	F: PF13533	ECOD (1.6)
I	F_UNCLASSIFIED	e5nikI1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: F_UNCLASSIFIED	ECOD (1.6)
I	PF13437	e5nikI3	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: PF13437	ECOD (1.6)
I	F_UNCLASSIFIED	e5nikI4	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: F_UNCLASSIFIED	ECOD (1.6)
I	PF13533	e5nikI2	A: a+b complex topology	X: alpha/beta-Hammerhead/Barrel-sandwich hybrid	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Single hybrid motif	F: PF13533	ECOD (1.6)
J	PF12704	e5nikJ2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: double psi	F: PF12704	ECOD (1.6)
J	PF02687	e5nikJ3	A: alpha bundles	X: Type II ABC exporter transmembrane domain fold	H: Type II ABC exporter transmembrane domain-related	T: MacB transmembrane domain	F: PF02687	ECOD (1.6)
J	F_UNCLASSIFIED	e5nikJ4	A: a+b two layers	X: Alpha-beta plaits	H: ferredoxin-like domain in periplasmic region of MacB (From Topology)	T: ferredoxin-like domain in periplasmic region of MacB	F: F_UNCLASSIFIED	ECOD (1.6)
J	PF00005	e5nikJ1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PF00005	ECOD (1.6)
K	PF12704	e5nikK3	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: double psi	F: PF12704	ECOD (1.6)
K	PF02687	e5nikK1	A: alpha bundles	X: Type II ABC exporter transmembrane domain fold	H: Type II ABC exporter transmembrane domain-related	T: MacB transmembrane domain	F: PF02687	ECOD (1.6)
K	F_UNCLASSIFIED	e5nikK4	A: a+b two layers	X: Alpha-beta plaits	H: ferredoxin-like domain in periplasmic region of MacB (From Topology)	T: ferredoxin-like domain in periplasmic region of MacB	F: F_UNCLASSIFIED	ECOD (1.6)
K	PF00005	e5nikK2	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PF00005	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.1600.10	Mainly Alpha	Up-down Bundle	Outer membrane efflux proteins (OEP)	Outer membrane efflux proteins (OEP)	CATH (4.3.0)
B	1.20.1600.10	Mainly Alpha	Up-down Bundle	Outer membrane efflux proteins (OEP)	Outer membrane efflux proteins (OEP)	CATH (4.3.0)
C	1.20.1600.10	Mainly Alpha	Up-down Bundle	Outer membrane efflux proteins (OEP)	Outer membrane efflux proteins (OEP)	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF02321	Outer membrane efflux protein (OEP)	Outer membrane efflux protein	-	Family
D, E, F, G, H D, E, F, G, H, I	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
J, K	PF12704	MacB-like periplasmic core domain (MacB_PCD)	MacB-like periplasmic core domain	-	Family
J, K	PF02687	FtsX-like permease family (FtsX)	FtsX-like permease family	-	Family
J, K	PF00005	ABC transporter (ABC_tran)	ABC transporter	ABC transporters for a large family of proteins responsible for translocation of a variety of compounds across biological membranes. ABC transporters are the largest family of proteins in many completely sequenced bacteria. ABC transporters are comp ...	ABC transporters for a large family of proteins responsible for translocation of a variety of compounds across biological membranes. ABC transporters are the largest family of proteins in many completely sequenced bacteria. ABC transporters are composed of two copies of this domain and two copies of a transmembrane domain Pfam:PF00664. These four domains may belong to a single polypeptide as in Swiss:P13569, or belong in different polypeptide chains.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	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 organic hydroxy compound transmembrane transporter activity monocarboxylic acid transmembrane transporter activity carboxylic acid transmembrane transporter activity organic acid transmembrane transporter activity organic anion transmembrane transporter activity bile acid 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 organic hydroxy compound transmembrane transporter activity monocarboxylic acid transmembrane transporter activity carboxylic acid transmembrane transporter activity organic acid transmembrane transporter activity organic anion 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	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 response to organic substance response to organic cyclic compound organic anion transport carboxylic acid transport organic substance 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	membrane cellular anatomical entity 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 membrane cellular anatomical entity 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 outer membrane-bounded periplasmic space cell envelope periplasmic space cell outer membrane external encapsulating structure outer membrane
D, E, F, G, H D, E, F, G, H, I	Macrolide export protein MacA	efflux transmembrane transporter activity transporter activity transmembrane transporter activity identical protein binding protein binding binding	xenobiotic export from cell xenobiotic transport response to stimulus xenobiotic detoxification by transmembrane export across the plasma membrane transport detoxification export from cell export across plasma membrane establishment of localization response to toxic substance transmembrane transport localization response to chemical cellular process xenobiotic export from cell xenobiotic transport response to stimulus xenobiotic detoxification by transmembrane export across the plasma membrane transport detoxification export from cell export across plasma membrane establishment of localization response to toxic substance transmembrane transport localization response to chemical cellular process response to antibiotic	cell periphery plasma membrane membrane cellular anatomical entity protein-containing complex transmembrane transporter complex MacAB-TolC complex membrane protein complex macrolide transmembrane transporter complex transporter complex efflux pump complex extrinsic component of membrane
J, K	Macrolide export ATP-binding/permease protein MacB	xenobiotic transmembrane transporter activity ABC-type transporter activity active transmembrane transporter activity primary active transmembrane transporter activity ATPase-coupled transmembrane transporter activity ABC-type xenobiotic transporter activity transporter activity transmembrane transporter activity ATP-dependent activity binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding xenobiotic transmembrane transporter activity ABC-type transporter activity active transmembrane transporter activity primary active transmembrane transporter activity ATPase-coupled transmembrane transporter activity ABC-type xenobiotic transporter activity transporter activity transmembrane transporter activity ATP-dependent activity binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding identical protein binding protein binding protein homodimerization activity protein dimerization activity pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity	response to stimulus response to chemical response to antibiotic xenobiotic export from cell xenobiotic transport xenobiotic detoxification by transmembrane export across the plasma membrane transport detoxification export from cell export across plasma membrane establishment of localization response to toxic substance transmembrane transport 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 transport detoxification export from cell export across plasma membrane establishment of localization response to toxic substance transmembrane transport localization cellular process	membrane cellular anatomical entity cell periphery plasma membrane protein-containing complex transmembrane transporter complex MacAB-TolC complex membrane protein complex macrolide transmembrane transporter complex transporter complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR010130	Type I secretion outer membrane protein, TolC	Family
A, B, C	IPR003423	Outer membrane efflux protein	Family
D, E, F, G, H D, E, F, G, H, I	IPR030190	Macrolide export protein MacA, alpha-hairpin domain superfamily	Homologous Superfamily
D, E, F, G, H D, E, F, G, H, I	IPR006143	RND efflux pump, membrane fusion protein	Family
D, E, F, G, H D, E, F, G, H, I	IPR032317	RND efflux pump, membrane fusion protein, barrel-sandwich domain	Domain
J, K	IPR017871	ABC transporter-like, conserved site	Conserved Site
J, K	IPR017911	MacB-like, ATP-binding domain	Domain
J, K	IPR003838	ABC3 transporter permease protein domain	Domain
J, K	IPR003439	ABC transporter-like, ATP-binding domain	Domain
J, K	IPR003593	AAA+ ATPase domain	Domain
J, K	IPR025857	MacB-like periplasmic core domain	Domain
J, K	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K	OPM	Transmembrane	Alpha-helical polytopic	ABC transporters	FtsX-like permease

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K	PDBTM	Annotated as membrane protein by PDBTM

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	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	ATP Binding Cassette (ABC) Transporters	MacAB-TolC tripartite multidrug efflux pump, MacA-TolC section

5NIK

Structure of the MacAB-TolC ABC-type tripartite multidrug efflux pump

External Resource: Annotation

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Domain Annotation: ECOD Classification ECOD Database Homepage

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage

Membrane Protein Annotation: OPM OPM Database Homepage

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

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5NIK

Structure of the MacAB-TolC ABC-type tripartite multidrug efflux pump

External Resource: Annotation

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Domain Annotation: ECOD Classification ECOD Database Homepage

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage

Membrane Protein Annotation: OPM OPM Database Homepage

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Membrane Protein Annotation: mpstruc mpstruc Database Homepage