Protein profile

PA3171

ubiquinone biosynthesis O-methyltransferase

Genome: NC_002516.2

Gene: PA3171 ubiG Structure source: AlphaFold UniProt Q9HZ63

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Amino acids 232

Annotations 9

Features 12

PDB binders 7

Druggability 0.759

Overview

Basic information about this protein and its source genome.

Accession: PA3171
Assembly: Pseudomonas aeruginosa PAO1, complete genome
Gene: PA3171 ubiG
Status: annotated
Amino acids: 232
Structure source: AlphaFold

2.1.1.222 2.1.1.64

GO:0102208 Catalysis of the reaction: a 3-(all-trans-polyprenyl)benzene-1,2-diol + S-adenosyl-L-methionine = a 2-methoxy-6-(all-trans-polyprenyl)phenol + H+ + S-adenosyl-L-homocysteine. GO:0061542 Catalysis of the reaction: a 3-demethylubiquinol + S-adenosyl-L-methionine = a ubiquinol + S-adenosyl-L-homocysteine + H+. GO:0008168 Catalysis of the transfer of a methyl group to an acceptor molecule. GO:0010420 Catalysis of the reaction: a 3,4-dihydroxy-5-all-trans-polyprenylbenzoate + S-adenosyl-L-methionine = a 3-methoxy,4-hydroxy-5-all-trans-polyprenylbenzoate + S-adenosyl-L-homocysteine + H+. GO:0032259 The process in which a methyl group is covalently attached to a molecule. GO:0006744 The chemical reactions and pathways resulting in the formation of ubiquinone, a lipid-soluble electron-transporting coenzyme.

Target profile

Computed evidence for target prioritization.

Human off-target: hit
Human identity (%): 35.021
Human E-value: 3.13e-53
Gut microbiome off-target: hit
Essential (DEG): Y
Localization: Cytoplasmic

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 0.759

Structure –

Pocket –

Sequence

Primary amino-acid sequence viewer.

MSNVDHAEIAKFEALAHRWWDRESEFKPLHDINPLRVNWIDERAGLAGKKVLDIGCGGGILSEAMAQRGASVTGIDMGEAPLAVARLHQLESGVAVDYRQITAEQMAEEMPGQFDVVTCLEMLEHVPDPASVIRACHRLVKPGGQVFLSTINRNPKAYLFAVIGAEYILQLLPRGTHDFRKFIRPSELGAWSREAGLEVKDIIGLTYNPLTKHYKLANDVDVNYMVQTKREA

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

2 EC 7 GO

Enzyme Commission (EC)

Gene Ontology (GO)

GO:0102208 Catalysis of the reaction: a 3-(all-trans-polyprenyl)benzene-1,2-diol + S-adenosyl-L-methionine = a 2-methoxy-6-(all-trans-polyprenyl)phenol + H+ + S-adenosyl-L-homocysteine.
GO:0061542 Catalysis of the reaction: a 3-demethylubiquinol + S-adenosyl-L-methionine = a ubiquinol + S-adenosyl-L-homocysteine + H+.
GO:0008168 Catalysis of the transfer of a methyl group to an acceptor molecule.
GO:0010420 Catalysis of the reaction: a 3,4-dihydroxy-5-all-trans-polyprenylbenzoate + S-adenosyl-L-methionine = a 3-methoxy,4-hydroxy-5-all-trans-polyprenylbenzoate + S-adenosyl-L-homocysteine + H+.
GO:0032259 The process in which a methyl group is covalently attached to a molecule.
GO:0006744 The chemical reactions and pathways resulting in the formation of ubiquinone, a lipid-soluble electron-transporting coenzyme.
GO:0008425 Catalysis of the reaction: a 2-methoxy-6-all-trans-polyprenyl-1,4-benzoquinol + S-adenosyl-L-methionine = a 6-methoxy-3-methyl-2-all-trans-polyprenyl-1,4-benzoquinol + S-adenosyl-L-homocysteine + H+.

Sequence Features

Domain/signature hits from InterPro and related databases.

12 records

Show feature table

Start	End	DB	Term	Name
12	226	SUPERFAMILY	SSF53335	S-adenosyl-L-methionine-dependent methyltransferases
12	226	InterPro	IPR029063	S-adenosyl-L-methionine-dependent methyltransferase superfamily
8	231	Hamap	MF_00472	Ubiquinone biosynthesis O-methyltransferase [ubiG].
8	231	InterPro	IPR010233	Ubiquinone biosynthesis O-methyltransferase
50	149	CDD	cd02440	AdoMet_MTases
2	192	PANTHER	PTHR43464	METHYLTRANSFERASE
8	231	FunFam	G3DSA:3.40.50.150:FF:000028	Ubiquinone biosynthesis O-methyltransferase
8	231	Gene3D	G3DSA:3.40.50.150	Vaccinia Virus protein VP39
8	231	InterPro	IPR029063	S-adenosyl-L-methionine-dependent methyltransferase superfamily
8	225	NCBIfam	TIGR01983	bifunctional 2-polyprenyl-6-hydroxyphenol methylase/3-demethylubiquinol 3-O-methyltransferase UbiG
8	225	InterPro	IPR010233	Ubiquinone biosynthesis O-methyltransferase
47	199	Pfam	PF13489	Methyltransferase domain

3D Structure

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

Loading 3D structure...

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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 PA3171	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				0.759
2				0.435

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.

57 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
1SH	4KRI	U5HK48	155.1 Da LogP -0.68 TPSA 78.8	✓ Ro5	✓ Clean	`CNCCOP(=O)(O)O`
AZ8	5JE0	Q9LBJ0	165.1 Da LogP -1.60 TPSA 104.4	✓ Ro5	✓ Clean	`c1nc2c(nn1)NC(=O)NC2=O`
AZ9	5JE5	Q9LBJ0	179.1 Da LogP -1.59 TPSA 93.5	✓ Ro5	✓ Clean	`CN1C(=O)c2c(nncn2)NC1=O`
BEZ	3CCF	Q3MEY9	122.1 Da LogP 1.38 TPSA 37.3	✓ Ro5	✓ Clean	`c1ccc(cc1)C(=O)O`
PC	5WP4	Q9FR44	184.2 Da LogP -0.20 TPSA 66.8	✓ Ro5	✓ Clean	`C[N+](C)(C)CCOP(=O)(O)O`
SFG	5F8F	O53532	381.4 Da LogP -2.06 TPSA 208.7	2 viol.	✓ Clean	`c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…`
TOF	5JDY	Q9LBJ0	193.2 Da LogP -1.63 TPSA 82.7	✓ Ro5	✓ Clean	`CN1C2=NC(=O)N(C(=O)C2=NC=N1)C`

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
ZINC13650200	1.000	381.4 Da LogP -2.06 TPSA 208.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](C[C@H](N)CC[C@H](N)…`
ZINC205994753	1.000	381.4 Da LogP -2.06 TPSA 208.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](C[C@H](N)CC[C@H](N)…`
ZINC205994774	1.000	381.4 Da LogP -2.06 TPSA 208.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](C[C@H](N)CC[C@H](N)…`
ZINC27723577	1.000	381.4 Da LogP -2.06 TPSA 208.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](C[C@H](N)CC[C@H](N)…`
ZINC38192471	1.000	381.4 Da LogP -2.06 TPSA 208.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](C[C@H](N)CC[C@@H](N…`
ZINC38192472	1.000	381.4 Da LogP -2.06 TPSA 208.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](C[C@@H](N)CC[C@@H](…`
ZINC4217451	1.000	381.4 Da LogP -2.06 TPSA 208.6	2 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](C[C@@H](N)CC[C@H](N…`
ZINC3269660	0.824	254.2 Da LogP 2.45 TPSA 71.4	✓ Ro5	Alert	`O=C(O)c1ccc(C(=O)C(=O)c2ccccc2)cc1`
ZINC2504355	0.778	226.2 Da LogP 2.62 TPSA 54.4	✓ Ro5	✓ Clean	`O=C(O)c1ccc(C(=O)c2ccccc2)cc1`
ZINC13522400	0.737	400.4 Da LogP -2.42 TPSA 199.7	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](C[S@](=O)CC[C@H](N)…`
ZINC13522403	0.737	400.4 Da LogP -2.42 TPSA 199.7	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](C[S@@](=O)CC[C@H](N…`
ZINC13522378	0.732	370.4 Da LogP -1.83 TPSA 182.6	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CSC[C@H](N)C(=O)O)[…`
ZINC13522407	0.732	370.4 Da LogP -1.83 TPSA 182.6	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CSC[C@H](N)C(=O)O)[…`
ZINC256828117	0.732	370.4 Da LogP -1.83 TPSA 182.6	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CSC[C@H](N)C(=O)O)[…`
ZINC256828118	0.732	370.4 Da LogP -1.83 TPSA 182.6	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CSC[C@H](N)C(=O)O)[…`
ZINC1775937521	0.726	423.5 Da LogP -1.02 TPSA 194.7	2 viol.	✓ Clean	`CCCN[C@H](CC[C@H](N)C(=O)O)C[C@H]1O[C@@H](n2cnc…`
ZINC95921230	0.726	423.5 Da LogP -1.02 TPSA 194.7	2 viol.	✓ Clean	`CCCN[C@@H](CC[C@H](N)C(=O)O)C[C@H]1O[C@@H](n2cn…`
ZINC12501055	0.724	384.4 Da LogP -1.44 TPSA 182.6	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CSCC[C@H](N)C(=O)O)…`
ZINC13509082	0.724	384.4 Da LogP -1.44 TPSA 182.6	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CSCC[C@@H](N)C(=O)O…`
ZINC13509104	0.724	384.4 Da LogP -1.44 TPSA 182.6	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CSCC[C@@H](N)C(=O)O…`
ZINC1532516	0.724	384.4 Da LogP -1.44 TPSA 182.6	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@@H](CSCC[C@H](N)C(=O)O)…`
ZINC33821012	0.724	384.4 Da LogP -1.44 TPSA 182.6	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CSCC[C@H](N)C(=O)O)…`
ZINC33821013	0.724	384.4 Da LogP -1.44 TPSA 182.6	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CSCC[C@H](N)C(=O)O)…`
ZINC4228232	0.724	384.4 Da LogP -1.44 TPSA 182.6	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CSCC[C@H](N)C(=O)O)…`
ZINC45789230	0.724	384.4 Da LogP -1.44 TPSA 182.6	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](CSCC[C@H](N)C(=O)O…`
ZINC45789233	0.724	384.4 Da LogP -1.44 TPSA 182.6	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@H](CSCC[C@H](N)C(=O)O)[…`
ZINC49014951	0.724	416.4 Da LogP -2.76 TPSA 216.8	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@H](CS(=O)(=O)CC[C@H](N)…`
ZINC49014955	0.724	416.4 Da LogP -2.76 TPSA 216.8	1 viol.	✓ Clean	`Nc1ncnc2c1ncn2[C@H]1O[C@H](CS(=O)(=O)CC[C@@H](N…`
ZINC100005972	0.712	400.5 Da LogP -1.54 TPSA 182.6	1 viol.	✓ Clean	`C[S@@H](CC[C@H](N)C(=O)O)C[C@H]1O[C@@H](n2cnc3c…`
ZINC12371977	0.700	399.5 Da LogP -1.92 TPSA 182.6	✓ Ro5	✓ Clean	`C[S@@+](CC[C@H](N)C(=O)O)C[C@H]1O[C@@H](n2cnc3c…`
ZINC12371978	0.700	399.5 Da LogP -1.92 TPSA 182.6	✓ Ro5	✓ Clean	`C[S@+](CC[C@H](N)C(=O)O)C[C@H]1O[C@@H](n2cnc3c(…`
ZINC13522357	0.700	399.5 Da LogP -1.92 TPSA 182.6	✓ Ro5	✓ Clean	`C[S@@+](CC[C@@H](N)C(=O)O)C[C@H]1O[C@@H](n2cnc3…`
ZINC13522362	0.700	399.5 Da LogP -1.92 TPSA 182.6	✓ Ro5	✓ Clean	`C[S@+](CC[C@@H](N)C(=O)O)C[C@H]1O[C@@H](n2cnc3c…`
ZINC139339614	0.700	399.5 Da LogP -1.92 TPSA 182.6	✓ Ro5	✓ Clean	`C[S@@+](CC[C@H](N)C(=O)O)C[C@@H]1O[C@H](n2cnc3c…`
ZINC254297245	0.700	399.5 Da LogP -1.92 TPSA 182.6	✓ Ro5	✓ Clean	`C[S@+](CC[C@H](N)C(=O)O)C[C@@H]1O[C@H](n2cnc3c(…`
ZINC254297254	0.700	399.5 Da LogP -1.92 TPSA 182.6	✓ Ro5	✓ Clean	`C[S@+](CC[C@H](N)C(=O)O)C[C@@H]1O[C@H](n2cnc3c(…`
ZINC254297257	0.700	399.5 Da LogP -1.92 TPSA 182.6	✓ Ro5	✓ Clean	`C[S@+](CC[C@H](N)C(=O)O)C[C@@H]1O[C@H](n2cnc3c(…`
ZINC33821030	0.700	399.5 Da LogP -1.92 TPSA 182.6	✓ Ro5	✓ Clean	`C[S@@+](CC[C@H](N)C(=O)O)C[C@H]1O[C@@H](n2cnc3c…`
ZINC33821031	0.700	399.5 Da LogP -1.92 TPSA 182.6	✓ Ro5	✓ Clean	`C[S@+](CC[C@H](N)C(=O)O)C[C@H]1O[C@@H](n2cnc3c(…`
ZINC4214738	0.700	399.5 Da LogP -1.92 TPSA 182.6	✓ Ro5	✓ Clean	`C[S@@+](CC[C@H](N)C(=O)O)C[C@H]1O[C@@H](n2cnc3c…`
ZINC4228231	0.700	399.5 Da LogP -1.92 TPSA 182.6	✓ Ro5	✓ Clean	`C[S@+](CC[C@H](N)C(=O)O)C[C@H]1O[C@@H](n2cnc3c(…`
ZINC71755544	0.700	399.5 Da LogP -1.92 TPSA 182.6	✓ Ro5	✓ Clean	`C[S@+](CC[C@@H](N)C(=O)O)C[C@@H]1O[C@H](n2cnc3c…`
ZINC71755557	0.700	399.5 Da LogP -1.92 TPSA 182.6	✓ Ro5	✓ Clean	`C[S@@+](CC[C@@H](N)C(=O)O)C[C@@H]1O[C@H](n2cnc3…`
ZINC95644663	0.700	399.5 Da LogP -1.92 TPSA 182.6	✓ Ro5	✓ Clean	`C[S@@+](CC[C@H](N)C(=O)O)C[C@H]1O[C@@H](n2cnc3c…`
ZINC95644664	0.700	399.5 Da LogP -1.92 TPSA 182.6	✓ Ro5	✓ Clean	`C[S@+](CC[C@H](N)C(=O)O)C[C@H]1O[C@@H](n2cnc3c(…`
ZINC1672966	0.688	210.2 Da LogP 2.75 TPSA 34.1	✓ Ro5	Alert	`O=C(C(=O)c1ccccc1)c1ccccc1`
ZINC34057267	0.684	274.3 Da LogP 4.72 TPSA 37.3	✓ Ro5	✓ Clean	`O=C(O)c1ccc(-c2ccc(-c3ccccc3)cc2)cc1`
ZINC5139067	0.654	283.3 Da LogP -1.04 TPSA 119.3	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](CS)[C@@H](O)[C@H]1O`
ZINC4513754	0.648	281.2 Da LogP -1.89 TPSA 156.6	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@@H](C(=O)O)[C@@H](O)[C…`
ZINC5163034	0.648	281.2 Da LogP -1.89 TPSA 156.6	✓ Ro5	✓ Clean	`Nc1ncnc2c1ncn2[C@@H]1O[C@H](C(=O)O)[C@@H](O)[C@…`

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.