Protein profile

PA1207

glutathione-regulated potassium-efflux system protein KefB

Genome: NC_002516.2

Gene: kefB PA1207 Structure source: AlphaFold UniProt Q9I4D1

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Amino acids 613

Annotations 8

Features 53

PDB binders 4

Druggability 0.923

Overview

Basic information about this protein and its source genome.

Accession: PA1207
Assembly: Pseudomonas aeruginosa PAO1, complete genome
Gene: kefB PA1207
Status: annotated
Amino acids: 613
Structure source: AlphaFold

GO:0005886 The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins. GO:0015297 Enables the active transport of a solute across a membrane by a mechanism whereby two or more species are transported in opposite directions in a tightly coupled process not directly linked to a form of energy other than chemiosmotic energy. The reaction is: solute A(out) + solute B(in) = solute A(in) + solute B(out). GO:0008324 Enables the transfer of cation from one side of a membrane to the other. GO:0006813 The directed movement of potassium ions (K+) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. GO:1902600 The directed movement of a proton across a membrane. GO:0055085 The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other.

Target profile

Computed evidence for target prioritization.

Human off-target: hit
Human identity (%): 39.062
Human E-value: 2.91e-07
Gut microbiome off-target: hit
Essential (DEG): N
Localization: CytoplasmicMembrane

Selected Druggability evidence

Selected Druggability is the FPocket score chosen for ranking using the curated structure priority. The 3D viewer may show a different loaded structure, so its visible pockets can differ.

FPocket 0.923

Structure –

Pocket –

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

8 GO

Gene Ontology (GO)

GO:0005886 The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
GO:0015297 Enables the active transport of a solute across a membrane by a mechanism whereby two or more species are transported in opposite directions in a tightly coupled process not directly linked to a form of energy other than chemiosmotic energy. The reaction is: solute A(out) + solute B(in) = solute A(in) + solute B(out).
GO:0008324 Enables the transfer of cation from one side of a membrane to the other.
GO:0006813 The directed movement of potassium ions (K+) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
GO:1902600 The directed movement of a proton across a membrane.
GO:0055085 The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other.
GO:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.
GO:0006812 The directed movement of a monoatomic cation, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. Monatomic cations (also called simple cations) are positively charged ions consisting of exactly one atom.

Sequence Features

Domain/signature hits from InterPro and related databases.

53 records

Show feature table

Start	End	DB	Term	Name
408	569	Gene3D	G3DSA:3.40.50.720	-
297	319	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
328	349	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
77	87	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
329	346	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
112	116	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
187	205	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
89	111	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
184	205	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
4	390	FunFam	G3DSA:1.20.1530.20:FF:000001	Glutathione-regulated potassium-efflux system protein KefB
226	253	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
359	381	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
57	76	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
361	386	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
298	316	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
26	31	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
408	522	ProSiteProfiles	PS51201	RCK N-terminal domain profile.
408	522	InterPro	IPR003148	Regulator of K+ conductance, N-terminal
6	598	PANTHER	PTHR46157	K(+) EFFLUX ANTIPORTER 3, CHLOROPLASTIC
60	77	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
407	543	SUPERFAMILY	SSF51735	NAD(P)-binding Rossmann-fold domains
407	543	InterPro	IPR036291	NAD(P)-binding domain superfamily
52	56	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
387	613	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
350	360	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
6	25	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
150	172	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
206	225	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
5	24	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
317	327	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
1	5	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
273	291	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
117	138	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
4	390	Gene3D	G3DSA:1.20.1530.20	-
4	390	InterPro	IPR038770	Sodium/solute symporter superfamily
226	255	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
405	568	FunFam	G3DSA:3.40.50.720:FF:000036	Glutathione-regulated potassium-efflux system protein KefB
88	111	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
254	272	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
150	172	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
139	149	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
173	183	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
292	297	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
13	377	Pfam	PF00999	Sodium/hydrogen exchanger family
13	377	InterPro	IPR006153	Cation/H+ exchanger
15	287	NCBIfam	TIGR00932	monovalent cation:proton antiporter-2 (CPA2) family protein
15	287	InterPro	IPR004771	K+/H+ exchanger
115	137	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
270	292	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
409	520	Pfam	PF02254	TrkA-N domain
409	520	InterPro	IPR003148	Regulator of K+ conductance, N-terminal
32	51	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
31	50	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.

3D Structure

Selected loaded structure. Experimental PDB entries may cover only a portion of the sequence; predicted models typically cover the full protein.

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Structural evidence

0 + 1

Experimental PDB entries and predicted models. Click Switch to display a different structure in the viewer.

Entry	Method	Resolution	Chain	Coverage	Links	Status
AlphaFold PA1207	AlphaFold	—	—	full sequence	—	Viewing

Pocket details FPocket · P2Rank — toggle visibility and zoom from here, or open full viewer

Pockets (FPOCKET)

Showing top-ranked FPocket candidates by druggability. Druggability is color-coded: high (0.7 or higher), medium (0.4 to 0.69), low (below 0.4).

FPOCKET	Sticks	Spheres	Surfaces	Druggability	Labels	Zoom	Positions
2				0.713
3				0.585
1				0.345
5				0.216

Ligand evidence

Ligands grouped by evidence source. PDB ligands keep the source crystal visible, and loaded crystals can be opened directly in the structure viewer.

54 records

Highest-confidence structural evidence: ligands co-crystallized with this exact protein. If the source PDB is loaded in TPW, use Open crystal to inspect it in the structure viewer.

No PDB structure with a co-crystallized ligand found for this exact protein.

Structural evidence inferred from similar proteins. The source crystal indicates where the ligand was observed; the UniProt column identifies the homologous protein carrying that ligand.

Ligand	Source crystal	UniProt (homolog)	MW · LogP · TPSA	Lipinski	PAINS	SMILES
7E8	5BZ3	Q5SIA2	300.4 Da LogP 3.36 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCC/C=C\CCCCCC(=O)OC[C@@H](CO)O`
ESG	3L9X	P03819	432.5 Da LogP -2.26 TPSA 196.2	✓ Ro5	✓ Clean	`CCN1C(=O)C[C@@H](C1=O)SC[C@@H](C(=O)NCC(=O)O)NC…`
GSH	3L9W	P03819	307.3 Da LogP -2.21 TPSA 158.8	1 viol.	✓ Clean	`C(CC(=O)N[C@@H](CS)C(=O)NCC(=O)O)[C@@H](C(=O)O)N`
L9X	3L9X	P03819	432.5 Da LogP -2.26 TPSA 196.2	✓ Ro5	✓ Clean	`CCN1C(=O)C[C@H](C1=O)SC[C@@H](C(=O)NCC(=O)O)NC(…`

Experimental bioactivity from ChEMBL measured directly on this protein. Score = pchembl (−log Ki/IC₅₀; higher = more potent).

No ChEMBL bioactivity data found for this exact protein.

Bioactivity inferred from similar proteins in ChEMBL. Score = pchembl (−log Ki/IC₅₀; higher = more potent).

No ChEMBL hits found through similar proteins.

Proposed virtual-screening candidates from ZINC. Score = Tanimoto similarity to a known binder (0–1; higher = more similar).

Ligand	Tanimoto	MW · LogP · TPSA	Lipinski	PAINS	SMILES
ZINC1501016272	1.000	328.5 Da LogP 4.14 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCC/C=C\CCCCCCC(=O)OC[C@H](O)CO`
ZINC1501016273	1.000	328.5 Da LogP 4.14 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCC/C=C\CCCCCCC(=O)OC[C@@H](O)CO`
ZINC1501016315	1.000	314.5 Da LogP 3.75 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCC/C=C\CCCCCCC(=O)OC[C@@H](O)CO`
ZINC1501016316	1.000	314.5 Da LogP 3.75 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCC/C=C\CCCCCCC(=O)OC[C@H](O)CO`
ZINC2038077522	1.000	356.5 Da LogP 4.92 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCC=CCCCCCCCC(=O)OC[C@@H](O)CO`
ZINC2038077523	1.000	356.5 Da LogP 4.92 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCC=CCCCCCCCC(=O)OC[C@H](O)CO`
ZINC221534416	1.000	328.5 Da LogP 4.14 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCC/C=C\CCCCCC(=O)OC[C@@H](O)CO`
ZINC32840893	1.000	328.5 Da LogP 4.14 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCC/C=C\CCCCCCCC(=O)OC[C@@H](O)CO`
ZINC32840894	1.000	328.5 Da LogP 4.14 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCC/C=C/CCCCCCCC(=O)OC[C@@H](O)CO`
ZINC32840895	1.000	328.5 Da LogP 4.14 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCC/C=C\CCCCCCCC(=O)OC[C@H](O)CO`
ZINC32840896	1.000	328.5 Da LogP 4.14 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCC/C=C/CCCCCCCC(=O)OC[C@H](O)CO`
ZINC32840901	1.000	356.5 Da LogP 4.92 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCC/C=C\CCCCCCCC(=O)OC[C@@H](O)CO`
ZINC32840902	1.000	356.5 Da LogP 4.92 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCC/C=C/CCCCCCCC(=O)OC[C@@H](O)CO`
ZINC32840903	1.000	356.5 Da LogP 4.92 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCC/C=C\CCCCCCCC(=O)OC[C@H](O)CO`
ZINC32840904	1.000	356.5 Da LogP 4.92 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCC/C=C/CCCCCCCC(=O)OC[C@H](O)CO`
ZINC3830891	1.000	307.3 Da LogP -2.21 TPSA 158.8	1 viol.	✓ Clean	`N[C@@H](CCC(=O)N[C@@H](CS)C(=O)NCC(=O)O)C(=O)O`
ZINC3830892	1.000	307.3 Da LogP -2.21 TPSA 158.8	1 viol.	✓ Clean	`N[C@@H](CCC(=O)N[C@H](CS)C(=O)NCC(=O)O)C(=O)O`
ZINC3830893	1.000	307.3 Da LogP -2.21 TPSA 158.8	1 viol.	✓ Clean	`N[C@H](CCC(=O)N[C@@H](CS)C(=O)NCC(=O)O)C(=O)O`
ZINC3830894	1.000	307.3 Da LogP -2.21 TPSA 158.8	1 viol.	✓ Clean	`N[C@H](CCC(=O)N[C@H](CS)C(=O)NCC(=O)O)C(=O)O`
ZINC725433050	1.000	342.5 Da LogP 4.53 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCC/C=C\CCCCCCC(=O)OC[C@@H](O)CO`
ZINC725433052	1.000	342.5 Da LogP 4.53 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCC/C=C\CCCCCCC(=O)OC[C@H](O)CO`
ZINC98208566	1.000	328.5 Da LogP 4.14 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCC/C=C\CCCCCC(=O)OC[C@H](O)CO`
ZINC32840885	0.943	300.4 Da LogP 3.36 TPSA 66.8	✓ Ro5	✓ Clean	`CCCC/C=C\CCCCCCCC(=O)OC[C@@H](O)CO`
ZINC2053467566	0.919	354.5 Da LogP 4.70 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCC=CCC=CCCCCCCCC(=O)OC[C@@H](O)CO`
ZINC2053467567	0.919	354.5 Da LogP 4.70 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCC=CCC=CCCCCCCCC(=O)OC[C@H](O)CO`
ZINC29045599	0.919	354.5 Da LogP 4.70 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCC/C=C/C/C=C\CCCCCCCC(=O)OC[C@H](O)CO`
ZINC4557100	0.919	354.5 Da LogP 4.70 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCC/C=C\C/C=C\CCCCCCCC(=O)OC[C@H](O)CO`
ZINC4557101	0.919	354.5 Da LogP 4.70 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCC/C=C\C/C=C\CCCCCCCC(=O)OC[C@@H](O)CO`
ZINC5819989	0.919	354.5 Da LogP 4.70 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCC/C=C/C/C=C/CCCCCCCC(=O)OC[C@H](O)CO`
ZINC5819990	0.919	354.5 Da LogP 4.70 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCC/C=C/C/C=C/CCCCCCCC(=O)OC[C@@H](O)CO`
ZINC85425978	0.919	354.5 Da LogP 4.70 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCC/C=C\C/C=C/CCCCCCCC(=O)OC[C@H](O)CO`
ZINC29045446	0.892	352.5 Da LogP 4.47 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCC/C=C\C/C=C\C/C=C\CCCCC(=O)OC[C@@H](O)CO`
ZINC13532428	0.829	372.5 Da LogP 3.89 TPSA 87.0	✓ Ro5	✓ Clean	`CCCCCC[C@@H](O)C/C=C\CCCCCCCC(=O)OC[C@@H](O)CO`
ZINC13532431	0.829	372.5 Da LogP 3.89 TPSA 87.0	✓ Ro5	✓ Clean	`CCCCCC[C@@H](O)C/C=C/CCCCCCCC(=O)OC[C@@H](O)CO`
ZINC13532435	0.829	372.5 Da LogP 3.89 TPSA 87.0	✓ Ro5	✓ Clean	`CCCCCC[C@H](O)C/C=C\CCCCCCCC(=O)OC[C@@H](O)CO`
ZINC13546140	0.829	372.5 Da LogP 3.89 TPSA 87.0	✓ Ro5	✓ Clean	`CCCCCC[C@@H](O)C/C=C\CCCCCCCC(=O)OC[C@H](O)CO`
ZINC13546141	0.829	372.5 Da LogP 3.89 TPSA 87.0	✓ Ro5	✓ Clean	`CCCCCC[C@@H](O)C/C=C/CCCCCCCC(=O)OC[C@H](O)CO`
ZINC2296552808	0.829	372.5 Da LogP 3.89 TPSA 87.0	✓ Ro5	✓ Clean	`CCCCCC[C@H](O)CC=CCCCCCCCC(=O)OC[C@H](O)CO`
ZINC2296552809	0.829	372.5 Da LogP 3.89 TPSA 87.0	✓ Ro5	✓ Clean	`CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@H](O)CO`
ZINC33832849	0.829	372.5 Da LogP 3.89 TPSA 87.0	✓ Ro5	✓ Clean	`CCCCCC[C@H](O)C/C=C\CCCCCCCC(=O)OC[C@H](O)CO`
ZINC35052109	0.829	372.5 Da LogP 3.89 TPSA 87.0	✓ Ro5	✓ Clean	`CCCCCC[C@H](O)C/C=C/CCCCCCCC(=O)OC[C@H](O)CO`
ZINC4411072	0.829	372.5 Da LogP 3.89 TPSA 87.0	✓ Ro5	✓ Clean	`CCCCCC[C@H](O)CC=CCCCCCCCC(=O)OC[C@@H](O)CO`
ZINC4411074	0.829	372.5 Da LogP 3.89 TPSA 87.0	✓ Ro5	✓ Clean	`CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](O)CO`
ZINC2516269	0.824	246.3 Da LogP 2.02 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCC(=O)OC[C@H](O)CO`
ZINC32840883	0.824	302.5 Da LogP 3.58 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCC(=O)OC[C@@H](O)CO`
ZINC32840889	0.824	316.5 Da LogP 3.97 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCC(=O)OC[C@@H](O)CO`
ZINC32840890	0.824	316.5 Da LogP 3.97 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCC(=O)OC[C@H](O)CO`
ZINC32840891	0.824	330.5 Da LogP 4.36 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCCC(=O)OC[C@@H](O)CO`
ZINC32840892	0.824	330.5 Da LogP 4.36 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCCC(=O)OC[C@H](O)CO`
ZINC72400435	0.824	344.5 Da LogP 4.75 TPSA 66.8	✓ Ro5	✓ Clean	`CCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)CO`

PDB and ChEMBL records on this protein are shown in full. ChEMBL records from similar proteins are capped at the top 100 per protein (by pchembl) and ZINC at the top 50 (Tanimoto ≥ 0.5). ADME columns are descriptor-based screening flags, not experimental toxicity results.