Protein profile

PA5287

ammonium transporter

Genome: NC_002516.2

Gene: PA5287 amtB Structure source: AlphaFold UniProt Q9HTR7

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Amino acids 442

Annotations 4

Features 52

PDB binders 6

Druggability 0.612

Overview

Basic information about this protein and its source genome.

Accession: PA5287
Assembly: Pseudomonas aeruginosa PAO1, complete genome
Gene: PA5287 amtB
Status: annotated
Amino acids: 442
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:0008519 Enables the energy-independent facilitated diffusion of ammonium through a transmembrane aqueous pore or channel. GO:0072488 The process in which ammonium is transported across a membrane. Ammonium is the cation NH4+. GO:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.

Target profile

Computed evidence for target prioritization.

Human off-target: No hit
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 0.612

Structure –

Pocket –

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

4 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:0008519 Enables the energy-independent facilitated diffusion of ammonium through a transmembrane aqueous pore or channel.
GO:0072488 The process in which ammonium is transported across a membrane. Ammonium is the cation NH4+.
GO:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.

Sequence Features

Domain/signature hits from InterPro and related databases.

52 records

Show feature table

Start	End	DB	Term	Name
196	220	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
353	375	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
7	24	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
136	155	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
388	410	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
377	387	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
232	253	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
263	285	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
24	32	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
185	195	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
65	87	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
29	421	SUPERFAMILY	SSF111352	Ammonium transporter
1	23	SignalP_EUK	SignalP-TM	SignalP-TM
341	351	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
199	221	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
89	134	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
23	442	PANTHER	PTHR43029	AMMONIUM TRANSPORTER MEP2
23	442	InterPro	IPR001905	Ammonium transporter
57	67	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
411	442	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
198	223	ProSitePatterns	PS01219	Ammonium transporters signature.
198	223	InterPro	IPR018047	Ammonium transporter, conserved site
315	319	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
1	23	Phobius	SIGNAL_PEPTIDE	Signal peptide region
388	410	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
318	340	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
320	340	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
18	23	Phobius	SIGNAL_PEPTIDE_C_REGION	C-terminal region of a signal peptide.
20	442	Gene3D	G3DSA:1.10.3430.10	Ammonium transporter AmtB like domains
20	442	InterPro	IPR029020	Ammonium/urea transporter
163	184	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
297	314	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
157	162	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
33	440	NCBIfam	TIGR00836	ammonium transporter
33	440	InterPro	IPR001905	Ammonium transporter
68	88	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
265	284	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
34	56	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
162	184	TMHMM	TMhelix	Region of a membrane-bound protein predicted to be embedded in the membrane.
35	440	Pfam	PF00909	Ammonium Transporter Family
35	440	InterPro	IPR024041	Ammonium transporter AmtB-like domain
221	231	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
285	295	Phobius	CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
135	156	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
296	314	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
1	5	Phobius	SIGNAL_PEPTIDE_N_REGION	N-terminal region of a signal peptide.
254	264	Phobius	NON_CYTOPLASMIC_DOMAIN	Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
33	56	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
352	376	Phobius	TRANSMEMBRANE	Region of a membrane-bound protein predicted to be embedded in the membrane.
6	17	Phobius	SIGNAL_PEPTIDE_H_REGION	Hydrophobic region of a signal peptide.
18	442	FunFam	G3DSA:1.10.3430.10:FF:000007	Ammonium transporter
234	253	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

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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 PA5287	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				0.612
2				0.506
3				0.278

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.

58 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
DMU	5AH3	Q59UP8	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@H]1[C@@H]([C@H]([C@@H]([C@H](O1)C…`
LMT	6EU6	Q1Q357	510.6 Da LogP -0.45 TPSA 178.5	3 viol.	✓ Clean	`CCCCCCCCCCCCO[C@H]1[C@@H]([C@H]([C@@H]([C@H](O1…`
NH4	6EU6	Q1Q357	18.0 Da LogP 0.38 TPSA 36.5	✓ Ro5	✓ Clean	`[NH4+]`
NME	1U7C	P69681	31.1 Da LogP -0.43 TPSA 26.0	✓ Ro5	✓ Clean	`CN`
XE	2B2J	O29285	131.3 Da LogP 0.00 TPSA 0.0	✓ Ro5	✓ Clean	`[Xe]`
ZDM	6EU6	Q1Q357	468.5 Da LogP -1.62 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCO[C@H]1[C@@H]([C@H]([C@@H]([C@H](O1)CO…`

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
CHEMBL1318350	P41948	—	530.5 Da LogP 3.60 TPSA 7.1	1 viol.	Alert	`CCN1/C(=C/c2ccc3cc(C)ccc3[n+]2CC)Sc2ccc3sccc3c2…`
CHEMBL1990694	P41948	—	332.4 Da LogP 4.26 TPSA 52.9	✓ Ro5	✓ Clean	`CCCC/N=C1\C(=O)N(C)c2cccc3c(O)c4ccccc4c1c23`

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
ZINC100053689	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H]…`
ZINC100053691	1.000	496.6 Da LogP -0.84 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCCO[C@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H…`
ZINC1501015302	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H…`
ZINC2039285652	1.000	454.5 Da LogP -2.01 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCO[C@H]1O[C@H](CO)[C@H](O[C@@H]2O[C@H](C…`
ZINC2039285653	1.000	454.5 Da LogP -2.01 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCO[C@H]1O[C@H](CO)[C@H](O[C@@H]2O[C@H](C…`
ZINC2039285654	1.000	454.5 Da LogP -2.01 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCO[C@H]1O[C@H](CO)[C@H](O[C@@H]2O[C@H](C…`
ZINC2039285655	1.000	454.5 Da LogP -2.01 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCO[C@H]1O[C@H](CO)[C@H](O[C@@H]2O[C@H](C…`
ZINC2053493146	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@H]1O[C@H](CO)[C@H](O[C@@H]2O[C@H]…`
ZINC2053493147	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@H]1O[C@H](CO)[C@H](O[C@@H]2O[C@H]…`
ZINC2053493148	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@H]1O[C@H](CO)[C@H](O[C@@H]2O[C@H]…`
ZINC2053493149	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@H]1O[C@H](CO)[C@H](O[C@@H]2O[C@H]…`
ZINC238809244	1.000	510.6 Da LogP -0.45 TPSA 178.5	3 viol.	✓ Clean	`CCCCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C…`
ZINC238809245	1.000	510.6 Da LogP -0.45 TPSA 178.5	3 viol.	✓ Clean	`CCCCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C…`
ZINC252695223	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H…`
ZINC252695224	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H…`
ZINC252695225	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H…`
ZINC252695226	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H…`
ZINC58649715	1.000	496.6 Da LogP -0.84 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@…`
ZINC59978443	1.000	454.5 Da LogP -2.01 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H](…`
ZINC66157001	1.000	468.5 Da LogP -1.62 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H]…`
ZINC70669940	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@@H](CO)[C@@H](O[C@H]2O[C@…`
ZINC70669941	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@@H](CO)[C@@H](O[C@H]2O[C@…`
ZINC70669942	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@@H](CO)[C@@H](O[C@H]2O[C@…`
ZINC70669943	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@@H](CO)[C@@H](O[C@H]2O[C@…`
ZINC77311968	1.000	454.5 Da LogP -2.01 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@@H]2O[C@H]…`
ZINC83433913	1.000	426.5 Da LogP -2.79 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H](CO…`
ZINC85482724	1.000	482.6 Da LogP -1.23 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O[C@H]2O[C@H…`
ZINC86002923	1.000	426.5 Da LogP -2.79 TPSA 178.5	2 viol.	✓ Clean	`CCCCCCO[C@@H]1O[C@H](CO)[C@H](O[C@H]2O[C@H](CO)…`
ZINC100623033	0.811	334.5 Da LogP 1.33 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCCCO[C@H]1O[C@@H](CO)[C@@H](O)[C@@H](O)…`
ZINC100623036	0.811	334.5 Da LogP 1.33 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCCCO[C@@H]1O[C@@H](CO)[C@@H](O)[C@@H](O…`
ZINC100623039	0.811	334.5 Da LogP 1.33 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCCCO[C@H]1O[C@@H](CO)[C@@H](O)[C@@H](O)…`
ZINC100623040	0.811	334.5 Da LogP 1.33 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCCCO[C@@H]1O[C@@H](CO)[C@@H](O)[C@@H](O…`
ZINC105807070	0.811	292.4 Da LogP 0.16 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCO[C@H]1O[C@H](CO)[C@H](O)[C@@H](O)[C@@H…`
ZINC118906375	0.811	264.3 Da LogP -0.62 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCO[C@H]1O[C@H](CO)[C@H](O)[C@@H](O)[C@@H]1O`
ZINC118911494	0.811	278.3 Da LogP -0.23 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCO[C@@H]1O[C@H](CO)[C@H](O)[C@@H](O)[C@@H…`
ZINC118911909	0.811	306.4 Da LogP 0.55 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCO[C@H]1O[C@H](CO)[C@H](O)[C@@H](O)[C@@…`
ZINC140974145	0.811	306.4 Da LogP 0.55 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCO[C@@H]1O[C@H](CO)[C@H](O)[C@@H](O)[C@…`
ZINC141152247	0.811	264.3 Da LogP -0.62 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCO[C@@H]1O[C@H](CO)[C@H](O)[C@@H](O)[C@@H]…`
ZINC141262250	0.811	320.4 Da LogP 0.94 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCCO[C@H]1O[C@H](CO)[C@H](O)[C@@H](O)[C@…`
ZINC14880350	0.811	306.4 Da LogP 0.55 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCO[C@H]1O[C@@H](CO)[C@@H](O)[C@@H](O)[C…`
ZINC40165555	0.811	292.4 Da LogP 0.16 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H…`
ZINC4521560	0.811	264.3 Da LogP -0.62 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCO[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O`
ZINC48016017	0.811	278.3 Da LogP -0.23 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]…`
ZINC49878458	0.811	306.4 Da LogP 0.55 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCO[C@@H]1O[C@@H](CO)[C@@H](O)[C@@H](O)[…`
ZINC53683291	0.811	292.4 Da LogP 0.16 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCO[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]…`
ZINC5820343	0.811	264.3 Da LogP -0.62 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCO[C@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O`
ZINC58563863	0.811	292.4 Da LogP 0.16 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCO[C@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]…`
ZINC76945547	0.811	292.4 Da LogP 0.16 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCO[C@@H]1O[C@H](CO)[C@H](O)[C@@H](O)[C@@…`
ZINC85605815	0.811	348.5 Da LogP 1.72 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCCCCCO[C@H]1O[C@H](CO)[C@@H](O)[C@H](O)[…`
ZINC94437834	0.811	292.4 Da LogP 0.16 TPSA 99.4	✓ Ro5	✓ Clean	`CCCCCCCCO[C@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O`

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.