KpATCC43816 Protein target profile

methionyl-tRNA formyltransferase

Accession: VK055_3785

Gene: fmt AIK82340.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism Not in network UniProt A0A0H3GU02
Length 315
Pocket druggability (P2Rank · AlphaFold DB model) 0.81
Direct ligand evidence 0 61 total records
Functional annotation 1 EC 5 GO
Target summary

Target candidate with partial support; inspect missing evidence before prioritizing.

Automated synthesis of the evidence currently loaded. Review the underlying records before prioritizing this protein.

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 (%)
35.625 Lower values reduce human off-target concern.
Human E-value
1.17e-18
Gut microbiome similarity
4.0% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
Y
DEG identity (%)
88.535 Higher values support similarity to known essential genes.
DEG E-value
0.0 Smaller values mean stronger essential-gene similarity.

Structure confidence

ColabFold pLDDT
96.45 0-100 confidence; >70 supports local structural interpretation.

Binding-site evidence

AlphaFold DB / UniProt model

P2Rank's binding-site probability is the primary druggability signal shown across the app; FPocket's druggability score is shown alongside it for comparison. Both estimate small-molecule pocket quality after applying the curated structure priority — neither is experimental binding evidence. The 3D viewer may show a different loaded structure, so visible pockets can differ.

Druggability (P2Rank) 0.81
Structure A0A0H3GU02
Pocket Pocket 1
Druggability (FPocket) 0.607
Structure A0A0H3GU02
Pocket Pocket 6
ColabFold model
P2Rank 0.792 · Pocket 1
FPocket 0.661 · Pocket 8
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 191 / 4744 genomes with a hit
Prevalence 4.0%

Metabolic context

Reactions catalyzed, pathway membership, and centrality in the genome-scale metabolic network.

This protein is not associated with the imported metabolic network for this genome.

Browse the genome's metabolic network

Imported from KpATCC43816.sbml · 2026-07-09

Sequence

Primary amino-acid sequence viewer.

MSQSLRIIFAGTPDFAARHLDALLSSEHQVVGVFTQPDRPAGRGKKLMPSPVKVLAEAHNLPVFQPSSLRPQDNQRLVADLGADIMVVVAYGLILPKAVLEMPRLGCINVHGSLLPRWRGAAPIQRSLWAGDSETGVTIMQMDVGLDTGDMLYKLSCPITAEDTSGSLYDKLAELGPQGLLATLAQLANGTARPEVQDESLVCHAEKLSKEEARIDWSLSAAQLERCIRAFNPWPMSWLEIDGQPVKVWRASVIAEAAHAEPGTIVAATKQGIQVATGDGILSLESLQPAGKKAMSAQDLLNSRREWFIPGTRLA

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 5 GO

Subcellular localization

Localization
Cytoplasmic

Enzyme Commission (EC)

1

Gene Ontology (GO)

5
  • GO:0004479 Catalysis of the reaction: 10-formyltetrahydrofolate + L-methionyl-tRNA + H2O = tetrahydrofolate + N-formylmethionyl-tRNA.
  • GO:0009058 A cellular process consisting of the biochemical pathways by which a living organism synthesizes chemical substances. This typically represents the energy-requiring part of metabolism in which simpler substances are transformed into more complex ones.
  • GO:0003824 Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
  • GO:0071951 The modification process that results in the conversion of methionine charged on a tRNA(fMet) to N-formyl-methionine-tRNA(fMet).
  • GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

25 records
Show feature table
Start End DB Term Name
136 159 ProSitePatterns PS00373 Phosphoribosylglycinamide formyltransferase active site.
136 159 InterPro IPR001555 Phosphoribosylglycinamide formyltransferase, active site
210 315 Gene3D G3DSA:3.10.25.10 -
210 315 InterPro IPR037022 Formyl transferase, C-terminal domain superfamily
5 307 Hamap MF_00182 Methionyl-tRNA formyltransferase [fmt].
5 307 InterPro IPR005794 Methionyl-tRNA formyltransferase
6 183 Pfam PF00551 Formyl transferase
6 183 InterPro IPR002376 Formyl transferase, N-terminal
210 315 FunFam G3DSA:3.10.25.10:FF:000001 Methionyl-tRNA formyltransferase
5 308 FunFam G3DSA:3.40.50.12230:FF:000001 Methionyl-tRNA formyltransferase
207 304 Pfam PF02911 Formyl transferase, C-terminal domain
207 304 InterPro IPR005793 Formyl transferase, C-terminal
4 206 SUPERFAMILY SSF53328 Formyltransferase
4 206 InterPro IPR036477 Formyl transferase, N-terminal domain superfamily
211 297 CDD cd08704 Met_tRNA_FMT_C
211 297 InterPro IPR044135 Methionyl-tRNA formyltransferase, C-terminal domain
208 309 SUPERFAMILY SSF50486 FMT C-terminal domain-like
208 309 InterPro IPR011034 Formyl transferase-like, C-terminal domain superfamily
5 308 NCBIfam TIGR00460 methionyl-tRNA formyltransferase
5 308 InterPro IPR005794 Methionyl-tRNA formyltransferase
5 208 CDD cd08646 FMT_core_Met-tRNA-FMT_N
5 208 InterPro IPR041711 Methionyl-tRNA formyltransferase, N-terminal domain
1 209 FunFam G3DSA:3.40.50.170:FF:000003 Methionyl-tRNA formyltransferase
1 209 Gene3D G3DSA:3.40.50.170 -
2 307 PANTHER PTHR11138 METHIONYL-TRNA FORMYLTRANSFERASE

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.

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Pocket score High Medium Low
How colors and pocket overlays are used
Uniform protein color marks the displayed model as a single molecular object.
Experimental PDB structures may be colored by chain to distinguish subunits or copies present in the file.
Pocket colors and alpha spheres are evidence overlays for predicted binding cavities; they are not alternative protein chains.
'Alpha spheres' is FPocket's own cavity-shape geometry, imported when available and aligned with the loaded structure.
'Pocket atoms'/'Predicted site atoms' show the pocket's residue atoms instead: P2Rank reports residues rather than alpha spheres, and FPocket falls back to this when alpha-sphere geometry is unavailable or doesn't align.
'No pocket geometry' means neither alpha spheres nor residue-position data could be found for that pocket; the layer just highlights the same residues as 'Nearby residues'.
Pocket details Inspect a specific pocket, or open the full viewer

Binding pockets · P2Rank

Druggability (P2Rank): high ≥ 0.5 · medium 0.2–0.49 · low < 0.2

Pocket 1 P2Rank #1
0.81
Likely same site as FPocket 6 4.0 Å 24 shared residues 92% of smaller site
Show in viewer
Surrounding area
Pocket 2 P2Rank #2
0.004
Show in viewer
Surrounding area

Binding pockets · FPocket

Druggability (FPocket): high ≥ 0.7 · medium 0.4–0.69 · low < 0.4

Pocket 1 FPocket #6
0.607 Unusual size
Likely same site as P2Rank 1 4.0 Å 24 shared residues 92% of smaller site
Show in viewer
Surrounding area
Residue sets
UniProt: Binding site:113-116
All structural evidence 0 experimental · 2 predicted

Structural evidence

0 + 2

Experimental 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_A0A0H3GU02
AlphaFold DB full sequence Viewing
ColabFold VK055_3785
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.

61 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 11 records from similar proteins
Structural ligands 11 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
1YA PDB via homolog 473.4 Da · LogP -0.73 · TPSA 219.8 Open detail RCSB PDB
1YJ PDB via homolog Detail RCSB PDB
6DD PDB via homolog Detail RCSB PDB
B62 PDB via homolog Detail RCSB PDB
BTB PDB via homolog Detail RCSB PDB

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.

Show only:
Ligand Source crystal UniProt (homolog) MW · LogP · TPSA Lipinski PAINS SMILES
1YA RCSB PDB F8WJP6 473.4 Da LogP -0.73 TPSA 219.8 1 viol. ✓ Clean c1cc(ccc1C(=O)N[C@@H](CCC(=O)O)C(=O)O)N(C[C@@H]…
1YJ RCSB PDB F8WJP6 445.4 Da LogP -0.28 TPSA 211.6 1 viol. ✓ Clean c1cc(ccc1C(=O)N[C@@H](CCC(=O)O)C(=O)O)NC[C@@H]2…
6DD RCSB PDB E3NZ06 467.4 Da LogP 1.13 TPSA 196.0 ✓ Ro5 ✓ Clean c1cc(ccc1C(=O)N[C@@H](CCC(=O)O)C(=O)O)N(Cc2ccc3…
B62 RCSB PDB F8WJP6 181.2 Da LogP -0.42 TPSA 95.8 ✓ Ro5 ✓ Clean C[C@@H]1CNC2=C(N1)C(=O)NC(=N2)N
BTB RCSB PDB E3NZ06 209.2 Da LogP -3.01 TPSA 104.4 ✓ Ro5 ✓ Clean C(CO)N(CCO)C(CO)(CO)CO
FME RCSB PDB P23882 177.2 Da LogP -0.06 TPSA 66.4 ✓ Ro5 ✓ Clean CSCC[C@@H](C(=O)O)NC=O
FON RCSB PDB F8WJP6 473.4 Da LogP -0.73 TPSA 219.8 1 viol. ✓ Clean c1cc(ccc1C(=O)N[C@@H](CCC(=O)O)C(=O)O)NC[C@@H]2…
JB2 RCSB PDB F8WJP6 588.4 Da LogP -3.63 TPSA 317.3 3 viol. ✓ Clean C[C@@H]1[C@H]([C@@H]([C@@H]([C@H](O1)OP(=O)(O)O…
MOE RCSB PDB Q8ZJ80 75.1 Da LogP -1.01 TPSA 32.3 ✓ Ro5 ✓ Clean COCC[O-]
PG5 RCSB PDB Q81WH2 178.2 Da LogP 0.31 TPSA 36.9 ✓ Ro5 ✓ Clean COCCOCCOCCOC
THG RCSB PDB E3NZ06 445.4 Da LogP -0.28 TPSA 211.6 1 viol. ✓ Clean c1cc(ccc1C(=O)N[C@@H](CCC(=O)O)C(=O)O)NC[C@H]2C…

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.

Cross-references

External database identifiers for this protein, its structures, ligands, and metabolic reactions.