Protein profile

PA4903

major facilitator superfamily transporter

Genome: NC_002516.2

Gene: PA4903 Structure source: AlphaFold UniProt Q9HUR0

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Amino acids 444

Annotations 6

Features 51

PDB binders 0

Druggability 0.78

Overview

Basic information about this protein and its source genome.

Accession: PA4903
Assembly: Pseudomonas aeruginosa PAO1, complete genome
Gene: PA4903
Status: annotated
Amino acids: 444
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:0046943 Enables the transfer of carboxylic acids from one side of a membrane to the other. Carboxylic acids are organic acids containing one or more carboxyl (COOH) groups or anions (COO-). GO:0046942 The directed movement of carboxylic acids into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. Carboxylic acids are organic acids containing one or more carboxyl (COOH) groups or anions (COO-). GO:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it. GO:0055085 The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other. GO:0022857 Enables the transfer of a substance, usually a specific substance or a group of related substances, from one side of a membrane to the other.

Target profile

Computed evidence for target prioritization.

Human off-target: hit
Human identity (%): 37.391
Human E-value: 1.87e-06
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 0.78

Structure –

Pocket –

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

6 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:0046943 Enables the transfer of carboxylic acids from one side of a membrane to the other. Carboxylic acids are organic acids containing one or more carboxyl (COOH) groups or anions (COO-).
GO:0046942 The directed movement of carboxylic acids into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. Carboxylic acids are organic acids containing one or more carboxyl (COOH) groups or anions (COO-).
GO:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.
GO:0055085 The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other.
GO:0022857 Enables the transfer of a substance, usually a specific substance or a group of related substances, from one side of a membrane to the other.

Sequence Features

Domain/signature hits from InterPro and related databases.

51 records

Show feature table

Start	End	DB	Term	Name
255	273	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
320	339	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
408	429	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
1	19	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
16	429	FunFam	G3DSA:1.20.1250.20:FF:000648	MFS superfamily vanillate transporter
117	142	ProSitePatterns	PS00217	Sugar transport proteins signature 2.
117	142	InterPro	IPR005829	Sugar transporter, conserved site
314	319	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
134	152	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
204	254	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
411	430	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
274	292	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
20	43	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
146	168	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
44	54	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
368	378	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
57	79	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
20	42	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
33	338	Pfam	PF07690	Major Facilitator Superfamily
33	338	InterPro	IPR011701	Major facilitator superfamily
113	133	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
21	434	ProSiteProfiles	PS50850	Major facilitator superfamily (MFS) profile.
21	434	InterPro	IPR020846	Major facilitator superfamily domain
153	173	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
112	134	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
75	90	ProSitePatterns	PS00216	Sugar transport proteins signature 1.
75	90	InterPro	IPR005829	Sugar transporter, conserved site
108	112	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
430	444	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
345	367	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
76	86	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
16	429	Gene3D	G3DSA:1.20.1250.20	MFS general substrate transporter like domains
16	429	InterPro	IPR036259	MFS transporter superfamily
344	366	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
320	339	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
379	402	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
173	195	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
403	407	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
55	75	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
291	313	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
9	436	PANTHER	PTHR23508	CARBOXYLIC ACID TRANSPORTER PROTEIN HOMOLOG
86	108	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
87	107	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
340	344	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
379	401	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
293	313	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
254	276	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
179	203	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
4	436	SUPERFAMILY	SSF103473	MFS general substrate transporter
4	436	InterPro	IPR036259	MFS transporter superfamily
174	178	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.

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

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

Entry	Method	Resolution	Chain	Coverage	Links	Status
AlphaFold PA4903	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
1				0.78
7				0.671
4				0.227

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.

53 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.

No PDB ligands found through similar proteins.

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).

Ligand	UniProt (homolog)	pchembl	MW · LogP · TPSA	Lipinski	PAINS	SMILES
CLS	Q9NSA0	6.70	396.4 Da LogP 0.59 TPSA 113.0	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(N2[C@@H]([C@@H](C2=O)NC(=O)Cc3cccs…`
CHEMBL1956820	Q9Y694	—	957.5 Da LogP 9.55 TPSA 181.3	3 viol.	✓ Clean	`COc1ccc2c(O[C@@H]3C[C@H]4C(=O)N[C@]5(P(=O)(O)Cc…`
CHEMBL897	Q9NSA0	—	285.4 Da LogP 2.20 TPSA 74.7	✓ Ro5	✓ Clean	`CCCN(CCC)S(=O)(=O)c1ccc(C(=O)O)cc1`

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
ZINC1982	1.000	285.4 Da LogP 2.20 TPSA 74.7	✓ Ro5	✓ Clean	`CCCN(CCC)S(=O)(=O)c1ccc(C(=O)O)cc1`
ZINC3830507	1.000	396.4 Da LogP 0.59 TPSA 113.0	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@@H](NC(=O)Cc3cccs…`
ZINC3830508	1.000	396.4 Da LogP 0.59 TPSA 113.0	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@@H](NC(=O)Cc3cccs…`
ZINC3830509	1.000	396.4 Da LogP 0.59 TPSA 113.0	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@H](NC(=O)Cc3cccs3…`
ZINC3830510	1.000	396.4 Da LogP 0.59 TPSA 113.0	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@H](NC(=O)Cc3cccs3…`
ZINC1681377	0.844	313.4 Da LogP 2.98 TPSA 74.7	✓ Ro5	✓ Clean	`CCCCN(CCCC)S(=O)(=O)c1ccc(C(=O)O)cc1`
ZINC4215221	0.793	390.4 Da LogP 0.53 TPSA 113.0	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@@H](NC(=O)Cc3cccc…`
ZINC6318089	0.793	390.4 Da LogP 0.53 TPSA 113.0	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@H](NC(=O)Cc3ccccc…`
ZINC6318097	0.793	390.4 Da LogP 0.53 TPSA 113.0	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@@H](NC(=O)Cc3cccc…`
ZINC6318106	0.793	390.4 Da LogP 0.53 TPSA 113.0	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@H](NC(=O)Cc3ccccc…`
ZINC38610994	0.759	354.4 Da LogP 0.02 TPSA 106.9	✓ Ro5	✓ Clean	`O=C(Cc1cccs1)N[C@H]1C(=O)N2C(C(=O)O)=C(CO)CS[C@…`
ZINC39282607	0.759	354.4 Da LogP 0.02 TPSA 106.9	✓ Ro5	✓ Clean	`O=C(Cc1cccs1)N[C@H]1C(=O)N2C(C(=O)O)=C(CO)CS[C@…`
ZINC39282608	0.759	354.4 Da LogP 0.02 TPSA 106.9	✓ Ro5	✓ Clean	`O=C(Cc1cccs1)N[C@@H]1C(=O)N2C(C(=O)O)=C(CO)CS[C…`
ZINC6093603	0.759	354.4 Da LogP 0.02 TPSA 106.9	✓ Ro5	✓ Clean	`O=C(Cc1cccs1)N[C@@H]1C(=O)N2C(C(=O)O)=C(CO)CS[C…`
ZINC2581301	0.758	283.4 Da LogP 2.70 TPSA 54.5	✓ Ro5	✓ Clean	`CCCN(CCC)S(=O)(=O)c1ccc(C(C)=O)cc1`
ZINC65742996	0.757	301.4 Da LogP 1.17 TPSA 94.9	✓ Ro5	✓ Clean	`CCCN(C[C@@H](C)O)S(=O)(=O)c1ccc(C(=O)O)cc1`
ZINC65742997	0.757	301.4 Da LogP 1.17 TPSA 94.9	✓ Ro5	✓ Clean	`CCCN(C[C@H](C)O)S(=O)(=O)c1ccc(C(=O)O)cc1`
ZINC1380	0.750	257.3 Da LogP 1.42 TPSA 74.7	✓ Ro5	✓ Clean	`CCN(CC)S(=O)(=O)c1ccc(C(=O)O)cc1`
ZINC5766463	0.741	338.4 Da LogP 1.05 TPSA 86.7	✓ Ro5	✓ Clean	`CC1=C(C(=O)O)N2C(=O)[C@@H](NC(=O)Cc3cccs3)[C@H]…`
ZINC38100394	0.737	314.4 Da LogP 0.53 TPSA 103.8	✓ Ro5	✓ Clean	`CCCN(CC(=O)NC)S(=O)(=O)c1ccc(C(=O)O)cc1`
ZINC7260681	0.737	328.3 Da LogP -0.30 TPSA 113.0	✓ Ro5	✓ Clean	`CCC(=O)N[C@H]1C(=O)N2C(C(=O)O)=C(COC(C)=O)CS[C@…`
ZINC7260682	0.737	328.3 Da LogP -0.30 TPSA 113.0	✓ Ro5	✓ Clean	`CCC(=O)N[C@H]1C(=O)N2C(C(=O)O)=C(COC(C)=O)CS[C@…`
ZINC7260684	0.737	328.3 Da LogP -0.30 TPSA 113.0	✓ Ro5	✓ Clean	`CCC(=O)N[C@@H]1C(=O)N2C(C(=O)O)=C(COC(C)=O)CS[C…`
ZINC7260685	0.737	328.3 Da LogP -0.30 TPSA 113.0	✓ Ro5	✓ Clean	`CCC(=O)N[C@@H]1C(=O)N2C(C(=O)O)=C(COC(C)=O)CS[C…`
ZINC240550	0.735	284.4 Da LogP 1.60 TPSA 80.5	✓ Ro5	✓ Clean	`CCCN(CCC)S(=O)(=O)c1ccc(C(N)=O)cc1`
ZINC37493601	0.727	289.3 Da LogP -0.64 TPSA 115.1	✓ Ro5	✓ Clean	`O=C(O)c1ccc(S(=O)(=O)N(CCO)CCO)cc1`
ZINC13544613	0.714	406.4 Da LogP 0.37 TPSA 122.2	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@H](NC(=O)COc3cccc…`
ZINC13544614	0.714	406.4 Da LogP 0.37 TPSA 122.2	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@@H](NC(=O)COc3ccc…`
ZINC19626444	0.714	406.4 Da LogP 0.37 TPSA 122.2	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@H](NC(=O)COc3cccc…`
ZINC19626449	0.714	406.4 Da LogP 0.37 TPSA 122.2	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@@H](NC(=O)COc3ccc…`
ZINC9851542	0.712	372.4 Da LogP -0.85 TPSA 150.3	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@@H](NC(=O)CCC(=O)…`
ZINC9851543	0.712	372.4 Da LogP -0.85 TPSA 150.3	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@@H](NC(=O)CCC(=O)…`
ZINC9851544	0.712	372.4 Da LogP -0.85 TPSA 150.3	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@H](NC(=O)CCC(=O)O…`
ZINC9851545	0.712	372.4 Da LogP -0.85 TPSA 150.3	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@H](NC(=O)CCC(=O)O…`
ZINC7260859	0.700	342.4 Da LogP 0.09 TPSA 113.0	✓ Ro5	✓ Clean	`CCCC(=O)N[C@H]1C(=O)N2C(C(=O)O)=C(COC(C)=O)CS[C…`
ZINC7260860	0.700	342.4 Da LogP 0.09 TPSA 113.0	✓ Ro5	✓ Clean	`CCCC(=O)N[C@H]1C(=O)N2C(C(=O)O)=C(COC(C)=O)CS[C…`
ZINC7260861	0.700	342.4 Da LogP 0.09 TPSA 113.0	✓ Ro5	✓ Clean	`CCCC(=O)N[C@@H]1C(=O)N2C(C(=O)O)=C(COC(C)=O)CS[…`
ZINC7260862	0.700	342.4 Da LogP 0.09 TPSA 113.0	✓ Ro5	✓ Clean	`CCCC(=O)N[C@@H]1C(=O)N2C(C(=O)O)=C(COC(C)=O)CS[…`
ZINC3202703	0.698	416.5 Da LogP 1.02 TPSA 90.6	✓ Ro5	✓ Clean	`O=C(Cc1cccs1)N[C@@H]1C(=O)N2C(C(=O)O)=C(C[n+]3c…`
ZINC2455246	0.694	317.4 Da LogP 0.67 TPSA 93.1	✓ Ro5	✓ Clean	`COCCN(CCOC)S(=O)(=O)c1ccc(C(=O)O)cc1`
ZINC306473	0.694	299.4 Da LogP 2.28 TPSA 63.7	✓ Ro5	✓ Clean	`CCCN(CCC)S(=O)(=O)c1ccc(C(=O)OC)cc1`
ZINC8945691	0.694	298.4 Da LogP 1.86 TPSA 66.5	✓ Ro5	✓ Clean	`CCCN(CCC)S(=O)(=O)c1ccc(C(=O)NC)cc1`
ZINC13959951	0.692	418.5 Da LogP 1.48 TPSA 113.0	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@H](NC(=O)C[C@H](C…`
ZINC13959952	0.692	418.5 Da LogP 1.48 TPSA 113.0	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@H](NC(=O)C[C@@H](…`
ZINC8488838	0.692	418.5 Da LogP 1.48 TPSA 113.0	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@H](NC(=O)C[C@H](C…`
ZINC8489897	0.692	418.5 Da LogP 1.48 TPSA 113.0	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@H](NC(=O)C[C@@H](…`
ZINC3830496	0.689	339.3 Da LogP -0.80 TPSA 136.8	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@@H](NC(=O)CC#N)[C…`
ZINC3830511	0.682	423.5 Da LogP 0.48 TPSA 125.9	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@@H](NC(=O)CSc3ccn…`
ZINC3830512	0.682	423.5 Da LogP 0.48 TPSA 125.9	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@@H](NC(=O)CSc3ccn…`
ZINC3830513	0.682	423.5 Da LogP 0.48 TPSA 125.9	✓ Ro5	✓ Clean	`CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@H](NC(=O)CSc3ccnc…`

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.