Protein profile

PA3169

methylthioribose-1-phosphate isomerase

Genome: NC_002516.2

Gene: mtnA PA3169 Structure source: AlphaFold UniProt Q9HZ65

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Amino acids 358

Annotations 5

Features 17

PDB binders 5

Druggability 0.454

Overview

Basic information about this protein and its source genome.

Accession: PA3169
Assembly: Pseudomonas aeruginosa PAO1, complete genome
Gene: mtnA PA3169
Status: annotated
Amino acids: 358
Structure source: AlphaFold

5.3.1.23

GO:0046523 Catalysis of the reaction: S-methyl-5-thio-alpha-D-ribose 1-phosphate = S-methyl-5-thio-D-ribulose 1-phosphate. GO:0019509 OBSOLETE. The generation of L-methionine (2-amino-4-(methylthio)butanoic acid) from methylthioadenosine. GO:0044249 OBSOLETE. The chemical reactions and pathways resulting in the formation of substances, carried out by individual cells. GO:0044237 OBSOLETE. The chemical reactions and pathways by which individual cells transform chemical substances.

Target profile

Computed evidence for target prioritization.

Human off-target: hit
Human identity (%): 43.695
Human E-value: 6.04e-78
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 0.454

Structure –

Pocket –

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 4 GO

Enzyme Commission (EC)

5.3.1.23

Gene Ontology (GO)

GO:0046523 Catalysis of the reaction: S-methyl-5-thio-alpha-D-ribose 1-phosphate = S-methyl-5-thio-D-ribulose 1-phosphate.
GO:0019509 OBSOLETE. The generation of L-methionine (2-amino-4-(methylthio)butanoic acid) from methylthioadenosine.
GO:0044249 OBSOLETE. The chemical reactions and pathways resulting in the formation of substances, carried out by individual cells.
GO:0044237 OBSOLETE. The chemical reactions and pathways by which individual cells transform chemical substances.

Sequence Features

Domain/signature hits from InterPro and related databases.

17 records

Show feature table

Start	End	DB	Term	Name
10	158	Gene3D	G3DSA:1.20.120.420	-
10	158	InterPro	IPR027363	Methylthioribose-1-phosphate isomerase, N-terminal
11	351	Hamap	MF_01678	Putative methylthioribose-1-phosphate isomerase [mtnA].
11	351	InterPro	IPR005251	Methylthioribose-1-phosphate isomerase
9	347	SUPERFAMILY	SSF100950	NagB/RpiA/CoA transferase-like
9	347	InterPro	IPR037171	NagB/RpiA transferase-like
8	349	PANTHER	PTHR43475	METHYLTHIORIBOSE-1-PHOSPHATE ISOMERASE
53	341	Pfam	PF01008	Initiation factor 2 subunit family
53	341	InterPro	IPR000649	Initiation factor 2B-related
159	357	Gene3D	G3DSA:3.40.50.10470	-
159	357	InterPro	IPR042529	Initiation factor 2B-like, C-terminal
158	354	FunFam	G3DSA:3.40.50.10470:FF:000006	Methylthioribose-1-phosphate isomerase
41	341	NCBIfam	TIGR00524	S-methyl-5-thioribose-1-phosphate isomerase
41	341	InterPro	IPR011559	Initiation factor 2B alpha/beta/delta
12	341	NCBIfam	TIGR00512	S-methyl-5-thioribose-1-phosphate isomerase
12	341	InterPro	IPR005251	Methylthioribose-1-phosphate isomerase
10	158	FunFam	G3DSA:1.20.120.420:FF:000008	Methylthioribose-1-phosphate isomerase

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 PA3169	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				0.454
5				0.212
3				0.208

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.

55 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
C7B	6CAJ	Q9UI10	451.4 Da LogP 3.99 TPSA 76.7	✓ Ro5	✓ Clean	`c1cc(ccc1OCC(=O)NC2CCC(CC2)NC(=O)COc3ccc(cc3)Cl…`
M6P	7KMA	Q14232	260.1 Da LogP -3.10 TPSA 156.9	1 viol.	✓ Clean	`C([C@@H]1[C@H]([C@@H]([C@@H]([C@H](O1)O)O)O)O)O…`
MRU	2YVK	O31662	260.2 Da LogP -1.25 TPSA 124.3	✓ Ro5	✓ Clean	`CSC[C@H]([C@H](C(=O)COP(=O)(O)O)O)O`
RI2	5YFS	O57947	310.1 Da LogP -2.35 TPSA 183.2	1 viol.	✓ Clean	`C([C@@H]1[C@H]([C@H]([C@H](O1)OP(=O)(O)O)O)O)OP…`
RUB	5YFJ	O57947	310.1 Da LogP -2.50 TPSA 191.0	1 viol.	✓ Clean	`C([C@H]([C@H](C(=O)COP(=O)(O)O)O)O)OP(=O)(O)O`

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
ZINC100081898	1.000	451.4 Da LogP 3.99 TPSA 76.7	✓ Ro5	✓ Clean	`O=C(COc1ccc(Cl)cc1)N[C@H]1CC[C@H](NC(=O)COc2ccc…`
ZINC13522068	1.000	310.1 Da LogP -2.35 TPSA 183.2	1 viol.	✓ Clean	`O=P(O)(O)OC[C@H]1O[C@H](OP(=O)(O)O)[C@H](O)[C@@…`
ZINC245239931	1.000	451.4 Da LogP 3.99 TPSA 76.7	✓ Ro5	✓ Clean	`O=C(COc1ccc(Cl)cc1)N[C@H]1CC[C@H](NC(=O)COc2ccc…`
ZINC3870205	1.000	310.1 Da LogP -2.35 TPSA 183.2	1 viol.	✓ Clean	`O=P(O)(O)OC[C@H]1O[C@@H](OP(=O)(O)O)[C@@H](O)[C…`
ZINC3870277	1.000	310.1 Da LogP -2.50 TPSA 191.0	1 viol.	✓ Clean	`O=C(COP(=O)(O)O)[C@H](O)[C@H](O)COP(=O)(O)O`
ZINC4095560	1.000	310.1 Da LogP -2.35 TPSA 183.2	1 viol.	✓ Clean	`O=P(O)(O)OC[C@H]1O[C@@H](OP(=O)(O)O)[C@H](O)[C@…`
ZINC4702158	1.000	225.7 Da LogP 2.00 TPSA 38.3	✓ Ro5	✓ Clean	`O=C(COc1ccc(Cl)cc1)NC1CC1`
ZINC671772	1.000	451.4 Da LogP 3.99 TPSA 76.7	✓ Ro5	✓ Clean	`O=C(COc1ccc(Cl)cc1)NC1CCC(NC(=O)COc2ccc(Cl)cc2)…`
ZINC12502703	0.966	340.1 Da LogP -2.99 TPSA 203.4	1 viol.	✓ Clean	`O=P(O)(O)OC[C@H]1O[C@@H](OP(=O)(O)O)[C@H](O)[C@…`
ZINC4095589	0.966	340.1 Da LogP -2.99 TPSA 203.4	1 viol.	✓ Clean	`O=P(O)(O)OC[C@H]1O[C@H](OP(=O)(O)O)[C@H](O)[C@@…`
ZINC146558	0.909	253.7 Da LogP 2.78 TPSA 38.3	✓ Ro5	✓ Clean	`O=C(COc1ccc(Cl)cc1)NC1CCCC1`
ZINC3387598	0.886	329.8 Da LogP 3.23 TPSA 55.4	✓ Ro5	✓ Clean	`O=C(COc1ccc(C(=O)c2ccc(Cl)cc2)cc1)NC1CC1`
ZINC1016959	0.882	281.8 Da LogP 3.56 TPSA 38.3	✓ Ro5	✓ Clean	`O=C(COc1ccc(Cl)cc1)NC1CCCCCC1`
ZINC443437	0.882	295.8 Da LogP 3.95 TPSA 38.3	✓ Ro5	✓ Clean	`O=C(COc1ccc(Cl)cc1)NC1CCCCCCC1`
ZINC68802	0.882	267.8 Da LogP 3.17 TPSA 38.3	✓ Ro5	✓ Clean	`O=C(COc1ccc(Cl)cc1)NC1CCCCC1`
ZINC51172603	0.861	281.8 Da LogP 3.41 TPSA 38.3	✓ Ro5	✓ Clean	`CC1CCC(NC(=O)COc2ccc(Cl)cc2)CC1`
ZINC7035958	0.838	357.8 Da LogP 4.01 TPSA 55.4	✓ Ro5	✓ Clean	`O=C(COc1ccc(C(=O)c2ccc(Cl)cc2)cc1)NC1CCCC1`
ZINC1875251926	0.813	309.1 Da LogP -1.91 TPSA 182.9	✓ Ro5	✓ Clean	`[O][P@](=O)(O)O[C@H]1O[C@H](COP(=O)(O)O)[C@@H](…`
ZINC3402618	0.811	283.7 Da LogP 1.54 TPSA 64.6	✓ Ro5	✓ Clean	`O=C(COC(=O)COc1ccc(Cl)cc1)NC1CC1`
ZINC36880012	0.811	281.7 Da LogP 2.35 TPSA 55.4	✓ Ro5	✓ Clean	`O=C1CCC(NC(=O)COc2ccc(Cl)cc2)CC1`
ZINC12502210	0.793	340.1 Da LogP -3.14 TPSA 211.3	1 viol.	✓ Clean	`O=C(COP(=O)(O)O)[C@H](O)[C@H](O)[C@@H](O)COP(=O…`
ZINC12502212	0.793	340.1 Da LogP -3.14 TPSA 211.3	1 viol.	✓ Clean	`O=C(COP(=O)(O)O)[C@H](O)[C@H](O)[C@H](O)COP(=O)…`
ZINC12502214	0.793	340.1 Da LogP -3.14 TPSA 211.3	1 viol.	✓ Clean	`O=C(COP(=O)(O)O)[C@H](O)[C@@H](O)[C@@H](O)COP(=…`
ZINC12502216	0.793	340.1 Da LogP -3.14 TPSA 211.3	1 viol.	✓ Clean	`O=C(COP(=O)(O)O)[C@H](O)[C@@H](O)[C@H](O)COP(=O…`
ZINC4523251	0.793	340.1 Da LogP -3.14 TPSA 211.3	1 viol.	✓ Clean	`O=C(COP(=O)(O)O)[C@@H](O)[C@@H](O)[C@@H](O)COP(…`
ZINC4523255	0.793	340.1 Da LogP -3.14 TPSA 211.3	1 viol.	✓ Clean	`O=C(COP(=O)(O)O)[C@@H](O)[C@@H](O)[C@H](O)COP(=…`
ZINC4523257	0.793	340.1 Da LogP -3.14 TPSA 211.3	1 viol.	✓ Clean	`O=C(COP(=O)(O)O)[C@@H](O)[C@H](O)[C@@H](O)COP(=…`
ZINC4523259	0.793	340.1 Da LogP -3.14 TPSA 211.3	1 viol.	✓ Clean	`O=C(COP(=O)(O)O)[C@@H](O)[C@H](O)[C@H](O)COP(=O…`
ZINC253405977	0.789	317.8 Da LogP 1.41 TPSA 72.5	✓ Ro5	✓ Clean	`O=C(COc1ccc(Cl)cc1)NC1CCS(=O)(=O)CC1`
ZINC12376161	0.775	343.9 Da LogP 4.56 TPSA 38.3	✓ Ro5	✓ Clean	`O=C(COc1ccc(Cl)cc1)NC1CCC(c2ccccc2)CC1`
ZINC16605351	0.769	282.8 Da LogP 1.93 TPSA 41.6	✓ Ro5	✓ Clean	`CN1CCC(NC(=O)COc2ccc(Cl)cc2)CC1`
ZINC100351835	0.765	390.1 Da LogP -2.23 TPSA 229.7	1 viol.	✓ Clean	`O=P(O)(O)OC[C@@H]1O[C@H](O[P@@](=O)(O)OP(=O)(O)…`
ZINC104897282	0.765	390.1 Da LogP -2.23 TPSA 229.7	1 viol.	✓ Clean	`O=P(O)(O)OC[C@@H]1O[C@H](O[P@](=O)(O)OP(=O)(O)O…`
ZINC13515641	0.765	390.1 Da LogP -2.23 TPSA 229.7	1 viol.	✓ Clean	`O=P(O)(O)OC[C@H]1O[C@@H](O[P@@](=O)(O)OP(=O)(O)…`
ZINC255995137	0.765	390.1 Da LogP -2.23 TPSA 229.7	1 viol.	✓ Clean	`O=P(O)(O)OC[C@@H]1O[C@H](O[P@](=O)(O)OP(=O)(O)O…`
ZINC255995138	0.765	390.1 Da LogP -2.23 TPSA 229.7	1 viol.	✓ Clean	`O=P(O)(O)OC[C@@H]1O[C@H](O[P@](=O)(O)OP(=O)(O)O…`
ZINC8215630	0.765	390.1 Da LogP -2.23 TPSA 229.7	1 viol.	✓ Clean	`O=P(O)(O)OC[C@H]1O[C@H](O[P@@](=O)(O)OP(=O)(O)O…`
ZINC14162823	0.750	308.8 Da LogP 2.46 TPSA 41.6	✓ Ro5	✓ Clean	`O=C(COc1ccc(Cl)cc1)NC1CCN(C2CC2)CC1`
ZINC14187435	0.750	310.8 Da LogP 1.85 TPSA 58.6	✓ Ro5	✓ Clean	`CC(=O)N1CCC(NC(=O)COc2ccc(Cl)cc2)CC1`
ZINC3219531	0.744	311.8 Da LogP 2.32 TPSA 64.6	✓ Ro5	✓ Clean	`O=C(COC(=O)COc1ccc(Cl)cc1)NC1CCCC1`
ZINC13715791	0.732	358.8 Da LogP 3.18 TPSA 67.4	✓ Ro5	✓ Clean	`O=C(COc1ccc(Cl)cc1)Nc1ccc(CC(=O)NC2CC2)cc1`
ZINC14523632	0.732	296.8 Da LogP 2.32 TPSA 41.6	✓ Ro5	✓ Clean	`CCN1CCC(NC(=O)COc2ccc(Cl)cc2)CC1`
ZINC12374623	0.730	451.4 Da LogP 3.99 TPSA 76.7	✓ Ro5	✓ Clean	`O=C(COc1ccc(Cl)cc1)N[C@H]1CCCC[C@H]1NC(=O)COc1c…`
ZINC672779	0.730	451.4 Da LogP 3.99 TPSA 76.7	✓ Ro5	✓ Clean	`O=C(COc1ccc(Cl)cc1)N[C@@H]1CCCC[C@H]1NC(=O)COc1…`
ZINC672781	0.730	451.4 Da LogP 3.99 TPSA 76.7	✓ Ro5	✓ Clean	`O=C(COc1ccc(Cl)cc1)N[C@H]1CCCC[C@@H]1NC(=O)COc1…`
ZINC3225840	0.725	325.8 Da LogP 2.71 TPSA 64.6	✓ Ro5	✓ Clean	`O=C(COC(=O)COc1ccc(Cl)cc1)NC1CCCCC1`
ZINC6999542	0.725	339.8 Da LogP 3.10 TPSA 64.6	✓ Ro5	✓ Clean	`O=C(COC(=O)COc1ccc(Cl)cc1)NC1CCCCCC1`
ZINC1529626	0.724	230.1 Da LogP -2.62 TPSA 144.5	✓ Ro5	✓ Clean	`O=C(CO)[C@H](O)[C@@H](O)COP(=O)(O)O`
ZINC1532567	0.724	230.1 Da LogP -2.62 TPSA 144.5	✓ Ro5	✓ Clean	`O=C(CO)[C@H](O)[C@H](O)COP(=O)(O)O`
ZINC30320708	0.724	230.1 Da LogP -2.62 TPSA 144.5	✓ Ro5	✓ Clean	`O=C(CO)[C@@H](O)[C@H](O)COP(=O)(O)O`

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.