Promising target candidate with multiple supporting evidence streams.
Automated synthesis of the evidence currently loaded. Review the underlying records before prioritizing this protein.
Main supporting evidence
Risks to review
Terms and data sources used on this page
PDB: experimentally determined structures from the Protein Data Bank. These are the strongest structural evidence, but may cover only part of the protein.
AlphaFold DB model: a precomputed predicted structure downloaded from AlphaFold Database/UniProt, not an experiment performed here.
ColabFold model: a predicted structure generated for this workspace; interpret it with coverage and confidence.
pLDDT: confidence score for predicted structures. High values support local geometry; low values mean the region should not drive pocket interpretation.
FPocket / P2Rank: software tools that predict possible ligand-binding pockets on a 3D structure. They are useful screening signals, not experimental validation.
Druggability: a pocket-based estimate of whether a small molecule could bind productively. It does not mean a drug already exists.
PDB ligand: a compound observed in an experimental structure. Direct same-protein records are stronger than homolog-transferred records.
ChEMBL: a public database of measured compound bioactivity. Direct entries are stronger than entries transferred from similar proteins.
ZINC: a purchasable-compound database. Here it marks proposed candidates from chemical similarity, not measured binders.
LigQ / LigQ_2: an internal Target pipeline step that gathers PDB, ChEMBL, and ZINC ligand evidence for each protein.
Off-target: sequence similarity to proteins we prefer not to hit, such as human proteins or beneficial gut microbiome proteins.
DEG: Database of Essential Genes. A match suggests the protein resembles genes known to be essential in other organisms.
Roary / CoreCruncher: pan-genome tools used to decide whether a gene is core across analyzed strains or accessory/strain-specific.
EC / GO: functional annotations: EC describes enzyme reactions; GO describes biological process, molecular function, or cellular component.
KEGG pathway: a curated metabolic route label used here to group reactions imported from the metabolic model.
Chokepoint: a metabolic reaction that is the only producer or consumer of a metabolite in the imported model.
Prioritization evidence
Selectivity, essentiality, structural confidence, conservation, and predicted binding-site evidence.
Off-target risk
- Human off-target
- Hit
- Human identity (%)
- 41.16 Lower values reduce human off-target concern.
- Human E-value
- 8.36e-71
- Gut microbiome similarity
- 1.6% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.
Essentiality
- Essential (DEG)
- Y
- DEG identity (%)
- 48.308 Higher values support similarity to known essential genes.
- DEG E-value
- 4.32e-83 Smaller values mean stronger essential-gene similarity.
Localization
- Localization
- Cytoplasmic
Structure confidence
- ColabFold pLDDT
- 96.02 0-100 confidence; >70 supports local structural interpretation.
Binding-site evidence
AlphaFold DB / UniProt modelThe selected pocket score is the FPocket value used for ranking after applying the curated structure priority. It estimates small-molecule pocket quality; it is not experimental binding evidence. The 3D viewer may show a different loaded structure, so visible pockets can differ.
Cross-references
External database identifiers for this protein, its structures, ligands, and metabolic reactions.
Sequence
Sequence
Primary amino-acid sequence viewer.
MQTLQTTSLRVSENQLFILDQQALPQEKRWLAADNVALLVDHIHTLRVRGAPLIGLSASLLLALLAQRGLNRDALQQALETLRAARPTAVNLMNNLDRMKQALAREDYPQALEAEALRLVEEDKQLCDRIAEAGSALVKPGSRLLTHCNTGGLATAGVGTALGVIALAHRQGKVTNVWVDETRPLLQGGRLTAWELGELGVPYQLIADSMAASLMAQGQVDAVWVGADRIAANGDVANKIGTYSLAVLAHYHQIPFYVAAPQTTLDRHCPNGAAIPIEQRAAAEVTGVAGSFGAVQWAPTGAAVYNPAFDVTPAGLISGWVLDSGVVTPAQVAAGAFAPDNG
Functional annotations
Enzyme classification and Gene Ontology terms linked to this protein.
Enzyme Commission (EC)
1Gene Ontology (GO)
4- 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.
- 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.
Sequence domains and features
Domain and signature matches imported from InterPro and related databases.
Show feature table
| Start | End | DB | Term | Name |
|---|---|---|---|---|
| 6 | 337 | PANTHER | PTHR43475 | METHYLTHIORIBOSE-1-PHOSPHATE ISOMERASE |
| 8 | 328 | NCBIfam | TIGR00512 | S-methyl-5-thioribose-1-phosphate isomerase |
| 8 | 328 | InterPro | IPR005251 | Methylthioribose-1-phosphate isomerase |
| 6 | 336 | Hamap | MF_01678 | Putative methylthioribose-1-phosphate isomerase [mtnA]. |
| 6 | 336 | InterPro | IPR005251 | Methylthioribose-1-phosphate isomerase |
| 1 | 174 | Gene3D | G3DSA:1.20.120.420 | - |
| 1 | 174 | InterPro | IPR027363 | Methylthioribose-1-phosphate isomerase, N-terminal |
| 175 | 335 | Gene3D | G3DSA:3.40.50.10470 | - |
| 175 | 335 | InterPro | IPR042529 | Initiation factor 2B-like, C-terminal |
| 140 | 336 | FunFam | G3DSA:3.40.50.10470:FF:000006 | Methylthioribose-1-phosphate isomerase |
| 8 | 332 | SUPERFAMILY | SSF100950 | NagB/RpiA/CoA transferase-like |
| 8 | 332 | InterPro | IPR037171 | NagB/RpiA transferase-like |
| 39 | 329 | NCBIfam | TIGR00524 | S-methyl-5-thioribose-1-phosphate isomerase |
| 39 | 329 | InterPro | IPR011559 | Initiation factor 2B alpha/beta/delta |
| 48 | 329 | Pfam | PF01008 | Initiation factor 2 subunit family |
| 48 | 329 | InterPro | IPR000649 | Initiation factor 2B-related |
3D structure
Selected loaded structure. Experimental PDB entries may cover only a portion of the sequence; AlphaFold DB and ColabFold models typically cover the full protein but remain computational predictions.
How colors and pocket overlays are used
Pocket details Inspect a specific pocket, or open the full viewer
- Method
- -
- Score
- -
- Visible layer
- -
- Residues
- -
- Pocket properties
- -
Selecting a pocket opens its details and centers the viewer without clearing other active layers. Use Focus this pocket when you want to hide the rest; use Surface for the wider residue environment.
Binding pockets · FPocket
Druggability: high ≥ 0.7 · medium 0.4–0.69 · low < 0.4
Binding pockets · P2Rank
Probability: high ≥ 0.5 · medium 0.2–0.49 · low < 0.2
Residue sets
Binding pockets · FPocket
Druggability: high ≥ 0.7 · medium 0.4–0.69 · low < 0.4
Binding pockets · P2Rank
Probability: high ≥ 0.5 · medium 0.2–0.49 · low < 0.2
All structural evidence
Structural evidence
0 + 2Experimental PDB entries plus predicted AlphaFold DB or ColabFold models. Click Switch to display a different loaded structure in the viewer.
| Entry | Method | Resolution | Chain | Coverage | Links | Status |
|---|---|---|---|---|---|---|
|
AlphaFold DB
AF_A0A0H3GPS7
|
AlphaFold DB | — | — | full sequence | — | Viewing |
|
ColabFold
KP13_03382
|
ColabFold | — | — | full sequence | — | Loaded |
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.
Structural ligand evidence is available for this target.
Highest-confidence structural evidence: ligands co-crystallized with this exact protein. If the source PDB is loaded in Target, 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 RCSB PDB | P49770 | 451.4 Da LogP 3.99 TPSA 76.7 | ✓ Ro5 | ✓ Clean |
c1cc(ccc1OCC(=O)NC2CCC(CC2)NC(=O)COc3ccc(cc3)Cl…
|
|
| M6P RCSB PDB | 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 RCSB PDB | 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 RCSB PDB | 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 RCSB PDB | 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 ZINC | 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…
|
| ZINC100351935 ZINC | 1.000 | 260.1 Da LogP -3.10 TPSA 156.9 | 1 viol. | ✓ Clean |
O=P(O)(O)OC[C@@H]1O[C@H](O)[C@H](O)[C@H](O)[C@@…
|
| ZINC1529564 ZINC | 1.000 | 260.1 Da LogP -3.10 TPSA 156.9 | 1 viol. | ✓ Clean |
O=P(O)(O)OC[C@@H]1O[C@@H](O)[C@H](O)[C@H](O)[C@…
|
| ZINC1532533 ZINC | 1.000 | 260.1 Da LogP -3.10 TPSA 156.9 | 1 viol. | ✓ Clean |
O=P(O)(O)OC[C@@H]1O[C@H](O)[C@@H](O)[C@H](O)[C@…
|
| ZINC1532857 ZINC | 1.000 | 260.1 Da LogP -3.10 TPSA 156.9 | 1 viol. | ✓ Clean |
O=P(O)(O)OC[C@@H]1O[C@@H](O)[C@@H](O)[C@H](O)[C…
|
| ZINC245239931 ZINC | 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…
|
| ZINC3581460 ZINC | 1.000 | 260.1 Da LogP -3.10 TPSA 156.9 | 1 viol. | ✓ Clean |
O=P(O)(O)OC[C@@H]1O[C@@H](O)[C@@H](O)[C@H](O)[C…
|
| ZINC38276879 ZINC | 1.000 | 260.1 Da LogP -3.10 TPSA 156.9 | 1 viol. | ✓ Clean |
O=P(O)(O)OC[C@H]1O[C@@H](O)[C@@H](O)[C@H](O)[C@…
|
| ZINC38276880 ZINC | 1.000 | 260.1 Da LogP -3.10 TPSA 156.9 | 1 viol. | ✓ Clean |
O=P(O)(O)OC[C@H]1O[C@H](O)[C@@H](O)[C@H](O)[C@H…
|
| ZINC3869397 ZINC | 1.000 | 260.1 Da LogP -3.10 TPSA 156.9 | 1 viol. | ✓ Clean |
O=P(O)(O)OC[C@H]1O[C@@H](O)[C@@H](O)[C@@H](O)[C…
|
| ZINC3870277 ZINC | 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
|
| ZINC3875374 ZINC | 1.000 | 260.1 Da LogP -3.10 TPSA 156.9 | 1 viol. | ✓ Clean |
O=P(O)(O)OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@…
|
| ZINC3875375 ZINC | 1.000 | 260.1 Da LogP -3.10 TPSA 156.9 | 1 viol. | ✓ Clean |
O=P(O)(O)OC[C@H]1O[C@H](O)[C@H](O)[C@@H](O)[C@@…
|
| ZINC4095545 ZINC | 1.000 | 260.1 Da LogP -3.10 TPSA 156.9 | 1 viol. | ✓ Clean |
O=P(O)(O)OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@…
|
| ZINC4095546 ZINC | 1.000 | 260.1 Da LogP -3.10 TPSA 156.9 | 1 viol. | ✓ Clean |
O=P(O)(O)OC[C@H]1O[C@H](O)[C@H](O)[C@@H](O)[C@H…
|
| ZINC4096188 ZINC | 1.000 | 260.1 Da LogP -3.10 TPSA 156.9 | 1 viol. | ✓ Clean |
O=P(O)(O)OC[C@H]1O[C@H](O)[C@@H](O)[C@@H](O)[C@…
|
| ZINC4702158 ZINC | 1.000 | 225.7 Da LogP 2.00 TPSA 38.3 | ✓ Ro5 | ✓ Clean |
O=C(COc1ccc(Cl)cc1)NC1CC1
|
| ZINC671772 ZINC | 1.000 | 451.4 Da LogP 3.99 TPSA 76.7 | ✓ Ro5 | ✓ Clean |
O=C(COc1ccc(Cl)cc1)NC1CCC(NC(=O)COc2ccc(Cl)cc2)…
|
| ZINC8551507 ZINC | 1.000 | 260.1 Da LogP -3.10 TPSA 156.9 | 1 viol. | ✓ Clean |
O=P(O)(O)OC[C@@H]1O[C@H](O)[C@@H](O)[C@H](O)[C@…
|
| ZINC12504154 ZINC | 0.962 | 230.1 Da LogP -2.47 TPSA 136.7 | ✓ Ro5 | ✓ Clean |
O=P(O)(O)OC[C@H]1O[C@H](O)[C@@H](O)[C@@H]1O
|
| ZINC1532546 ZINC | 0.962 | 230.1 Da LogP -2.47 TPSA 136.7 | ✓ Ro5 | ✓ Clean |
O=P(O)(O)OC[C@@H]1O[C@H](O)[C@@H](O)[C@H]1O
|
| ZINC4096190 ZINC | 0.962 | 230.1 Da LogP -2.47 TPSA 136.7 | ✓ Ro5 | ✓ Clean |
O=P(O)(O)OC[C@H]1O[C@H](O)[C@H](O)[C@@H]1O
|
| ZINC4228241 ZINC | 0.962 | 230.1 Da LogP -2.47 TPSA 136.7 | ✓ Ro5 | ✓ Clean |
O=P(O)(O)OC[C@H]1O[C@@H](O)[C@H](O)[C@@H]1O
|
| ZINC4521831 ZINC | 0.962 | 230.1 Da LogP -2.47 TPSA 136.7 | ✓ Ro5 | ✓ Clean |
O=P(O)(O)OC[C@H]1O[C@@H](O)[C@@H](O)[C@@H]1O
|
| ZINC146558 ZINC | 0.909 | 253.7 Da LogP 2.78 TPSA 38.3 | ✓ Ro5 | ✓ Clean |
O=C(COc1ccc(Cl)cc1)NC1CCCC1
|
| ZINC3387598 ZINC | 0.886 | 329.8 Da LogP 3.23 TPSA 55.4 | ✓ Ro5 | ✓ Clean |
O=C(COc1ccc(C(=O)c2ccc(Cl)cc2)cc1)NC1CC1
|
| ZINC1016959 ZINC | 0.882 | 281.8 Da LogP 3.56 TPSA 38.3 | ✓ Ro5 | ✓ Clean |
O=C(COc1ccc(Cl)cc1)NC1CCCCCC1
|
| ZINC443437 ZINC | 0.882 | 295.8 Da LogP 3.95 TPSA 38.3 | ✓ Ro5 | ✓ Clean |
O=C(COc1ccc(Cl)cc1)NC1CCCCCCC1
|
| ZINC68802 ZINC | 0.882 | 267.8 Da LogP 3.17 TPSA 38.3 | ✓ Ro5 | ✓ Clean |
O=C(COc1ccc(Cl)cc1)NC1CCCCC1
|
| ZINC51172603 ZINC | 0.861 | 281.8 Da LogP 3.41 TPSA 38.3 | ✓ Ro5 | ✓ Clean |
CC1CCC(NC(=O)COc2ccc(Cl)cc2)CC1
|
| ZINC7035958 ZINC | 0.838 | 357.8 Da LogP 4.01 TPSA 55.4 | ✓ Ro5 | ✓ Clean |
O=C(COc1ccc(C(=O)c2ccc(Cl)cc2)cc1)NC1CCCC1
|
| ZINC3402618 ZINC | 0.811 | 283.7 Da LogP 1.54 TPSA 64.6 | ✓ Ro5 | ✓ Clean |
O=C(COC(=O)COc1ccc(Cl)cc1)NC1CC1
|
| ZINC36880012 ZINC | 0.811 | 281.7 Da LogP 2.35 TPSA 55.4 | ✓ Ro5 | ✓ Clean |
O=C1CCC(NC(=O)COc2ccc(Cl)cc2)CC1
|
| ZINC12502210 ZINC | 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 ZINC | 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 ZINC | 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 ZINC | 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 ZINC | 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 ZINC | 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 ZINC | 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 ZINC | 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 ZINC | 0.789 | 317.8 Da LogP 1.41 TPSA 72.5 | ✓ Ro5 | ✓ Clean |
O=C(COc1ccc(Cl)cc1)NC1CCS(=O)(=O)CC1
|
| ZINC12376161 ZINC | 0.775 | 343.9 Da LogP 4.56 TPSA 38.3 | ✓ Ro5 | ✓ Clean |
O=C(COc1ccc(Cl)cc1)NC1CCC(c2ccccc2)CC1
|
| ZINC16605351 ZINC | 0.769 | 282.8 Da LogP 1.93 TPSA 41.6 | ✓ Ro5 | ✓ Clean |
CN1CCC(NC(=O)COc2ccc(Cl)cc2)CC1
|
| ZINC14162823 ZINC | 0.750 | 308.8 Da LogP 2.46 TPSA 41.6 | ✓ Ro5 | ✓ Clean |
O=C(COc1ccc(Cl)cc1)NC1CCN(C2CC2)CC1
|
| ZINC14187435 ZINC | 0.750 | 310.8 Da LogP 1.85 TPSA 58.6 | ✓ Ro5 | ✓ Clean |
CC(=O)N1CCC(NC(=O)COc2ccc(Cl)cc2)CC1
|
| ZINC3219531 ZINC | 0.744 | 311.8 Da LogP 2.32 TPSA 64.6 | ✓ Ro5 | ✓ Clean |
O=C(COC(=O)COc1ccc(Cl)cc1)NC1CCCC1
|
| ZINC13516910 ZINC | 0.733 | 244.1 Da LogP -2.42 TPSA 136.7 | ✓ Ro5 | ✓ Clean |
O=P(O)(O)OC[C@@H]1O[C@@H](CO)[C@@H](O)[C@H]1O
|
| ZINC2562340 ZINC | 0.733 | 244.1 Da LogP -2.42 TPSA 136.7 | ✓ Ro5 | ✓ Clean |
O=P(O)(O)OC[C@@H]1O[C@@H](CO)[C@H](O)[C@H]1O
|
| ZINC13715791 ZINC | 0.732 | 358.8 Da LogP 3.18 TPSA 67.4 | ✓ Ro5 | ✓ Clean |
O=C(COc1ccc(Cl)cc1)Nc1ccc(CC(=O)NC2CC2)cc1
|
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.