KpKP13 Protein target profile

Nicotinate-nucleotide--dimethylbenzimidazole phosphoribosyltransferase

Accession: KP13_04750

Gene: AHE43713.1 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3GVR2
Length 355
Pocket druggability (P2Rank · AlphaFold DB model) 0.567
Direct ligand evidence 0 76 total records
Functional annotation 1 EC 2 GO
Target summary

Promising target candidate with multiple supporting evidence streams.

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
No hit
Gut microbiome similarity
1.3% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
N
DEG identity (%)
0.0 Higher values support similarity to known essential genes.

Structure confidence

ColabFold pLDDT
96.54 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) 0.567
Structure A0A0H3GVR2
Pocket Pocket 1
Druggability (FPocket) 0.256
Structure A0A0H3GVR2
Pocket Pocket 8
ColabFold model
P2Rank 0.478 · Pocket 1
FPocket 0.251 · Pocket 12
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 60 / 4744 genomes with a hit
Prevalence 1.3%

Sequence

Primary amino-acid sequence viewer.

METLSALLAAIPQPDVAAMARAQQHIDGLLKPPGSLGRLETLAVQLAGLPGLQGQLALAEKAIVVMCADHGVWHEGVTPSPQVVTAIHAGNMVRGNTGVCVLAAQAGARVQVVDVGIDADPLPGLINLKVARGSGNIARTAAMSSQQAETVLLASMHLTRQLAADGVKAFGVGELGMANTTPAAATISVLTGSDPDAVVGCGANLPLAQRGHKVAVVRQAIAHNQPNPADGLDVLAKVGGYDLVGMTGVILGAASCGLPVVLDGFLSYASALAACRMAPSAHPYLIPSHLSAEKGAQIALDALGLRPYLDMDMRLGEGSGAALAMHLLDAASVMYNQMGTLAQSNIVLPDSAPSS

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 2 GO

Subcellular localization

Localization
Cytoplasmic

Enzyme Commission (EC)

1

Gene Ontology (GO)

2
  • GO:0008939 Catalysis of the reaction: 5,6-dimethylbenzimidazole + nicotinate D-ribonucleotide = alpha-ribazole 5'-phosphate + H+ + nicotinate.
  • GO:0009236 The chemical reactions and pathways resulting in the formation of cobalamin (vitamin B12), a water-soluble vitamin characterized by possession of a corrin nucleus containing a cobalt atom.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

24 records
Show feature table
Start End DB Term Name
4 346 PANTHER PTHR43463 NICOTINATE-NUCLEOTIDE--DIMETHYLBENZIMIDAZOLE PHOSPHORIBOSYLTRANSFERASE
4 346 InterPro IPR003200 Nicotinate-nucleotide-dimethylbenzimidazole phosphoribosyltransferase
1 2 Phobius SIGNAL_PEPTIDE_N_REGION N-terminal region of a signal peptide.
59 329 FunFam G3DSA:3.40.50.10210:FF:000001 Nicotinate-nucleotide--dimethylbenzimidazole phosphoribosyltransferase
15 346 NCBIfam TIGR03160 nicotinate-nucleotide--dimethylbenzimidazole phosphoribosyltransferase
15 346 InterPro IPR017846 Nicotinate-nucleotide-dimethylbenzimidazole phosphoribosyltransferase, bacterial type
1 63 Gene3D G3DSA:1.10.1610.10 -
1 63 InterPro IPR023195 Nicotinate-nucleotide-dimethylbenzimidazole phosphoribosyltransferase, N-terminal
13 348 Hamap MF_00230 Nicotinate-nucleotide--dimethylbenzimidazole phosphoribosyltransferase [cobT].
13 348 InterPro IPR017846 Nicotinate-nucleotide-dimethylbenzimidazole phosphoribosyltransferase, bacterial type
324 353 Gene3D G3DSA:1.10.1610.10 -
324 353 InterPro IPR023195 Nicotinate-nucleotide-dimethylbenzimidazole phosphoribosyltransferase, N-terminal
5 345 SUPERFAMILY SSF52733 Nicotinate mononucleotide:5,6-dimethylbenzimidazole phosphoribosyltransferase (CobT)
5 345 InterPro IPR036087 Nicotinate-nucleotide-dimethylbenzimidazole phosphoribosyltransferase-like superfamily
64 323 Gene3D G3DSA:3.40.50.10210 -
64 323 InterPro IPR036087 Nicotinate-nucleotide-dimethylbenzimidazole phosphoribosyltransferase-like superfamily
23 355 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
11 345 Pfam PF02277 Phosphoribosyltransferase
11 345 InterPro IPR003200 Nicotinate-nucleotide-dimethylbenzimidazole phosphoribosyltransferase
12 22 Phobius SIGNAL_PEPTIDE_C_REGION C-terminal region of a signal peptide.
31 343 CDD cd02439 DMB-PRT_CobT
31 343 InterPro IPR003200 Nicotinate-nucleotide-dimethylbenzimidazole phosphoribosyltransferase
3 11 Phobius SIGNAL_PEPTIDE_H_REGION Hydrophobic region of a signal peptide.
1 22 Phobius SIGNAL_PEPTIDE Signal peptide region

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
0.567
Show in viewer
Surrounding area
Pocket 2 P2Rank #2
0.03
Show in viewer
Surrounding area

Binding pockets · FPocket

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

Pocket 1 FPocket #8
0.256
Show in viewer
Surrounding area
Pocket 2 FPocket #2
0.213
Show in viewer
Surrounding area
Residue sets
UniProt: Active site:317-317 Proton acceptor
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_A0A0H3GVR2
AlphaFold DB full sequence Viewing
ColabFold KP13_04750
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.

76 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 26 records from similar proteins
Structural ligands 26 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
13X PDB via homolog 126.1 Da · LogP 0.80 · TPSA 60.7 Open detail RCSB PDB
150 PDB via homolog Detail RCSB PDB
1RB PDB via homolog Detail RCSB PDB
2AC PDB via homolog Detail RCSB PDB
2AF 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
13X RCSB PDB F6MZ55 126.1 Da LogP 0.80 TPSA 60.7 ✓ Ro5 ✓ Clean c1c(cc(cc1O)O)O
150 RCSB PDB Q05603 136.2 Da LogP 1.47 TPSA 52.0 ✓ Ro5 ✓ Clean Cc1cc(c(cc1C)N)N
1RB RCSB PDB Q05603 330.2 Da LogP -0.24 TPSA 134.3 ✓ Ro5 ✓ Clean c1ccc2c(c1)ncn2[C@@H]3[C@@H]([C@@H]([C@H](O3)CO…
2AC RCSB PDB Q05603 123.2 Da LogP 1.28 TPSA 46.2 ✓ Ro5 ✓ Clean Cc1ccc(c(c1)N)O
2AF RCSB PDB Q05603 109.1 Da LogP 0.97 TPSA 46.2 ✓ Ro5 ✓ Clean c1ccc(c(c1)N)O
2MP RCSB PDB Q05603 122.2 Da LogP 2.01 TPSA 20.2 ✓ Ro5 ✓ Clean Cc1ccc(cc1C)O
34A RCSB PDB Q05603 121.2 Da LogP 1.89 TPSA 26.0 ✓ Ro5 ✓ Clean Cc1ccc(cc1C)N
5MB RCSB PDB Q05603 132.2 Da LogP 1.87 TPSA 28.7 ✓ Ro5 ✓ Clean Cc1ccc2c(c1)[nH]cn2
5OB RCSB PDB Q05603 148.2 Da LogP 1.57 TPSA 37.9 ✓ Ro5 ✓ Clean COc1ccc2c(c1)[nH]cn2
7RA RCSB PDB Q05603 347.2 Da LogP -1.86 TPSA 186.1 ✓ Ro5 ✓ Clean c1c2c(ncn2[C@@H]3[C@@H]([C@@H]([C@H](O3)COP(=O)…
7RP RCSB PDB Q05603 332.2 Da LogP -1.45 TPSA 160.0 ✓ Ro5 ✓ Clean c1c2c(ncn1)ncn2[C@@H]3[C@@H]([C@@H]([C@H](O3)CO…
AAM RCSB PDB Q05603 347.2 Da LogP -1.86 TPSA 186.1 ✓ Ro5 ✓ Clean c1nc(c2c(n1)ncn2[C@@H]3[C@@H]([C@@H]([C@H](O3)C…
ADE RCSB PDB Q05603 135.1 Da LogP -0.06 TPSA 80.5 ✓ Ro5 ✓ Clean c1[nH]c2c(n1)c(ncn2)N
BZI RCSB PDB Q05603 118.1 Da LogP 1.56 TPSA 28.7 ✓ Ro5 ✓ Clean c1ccc2c(c1)[nH]cn2
DMD RCSB PDB Q05603 146.2 Da LogP 2.18 TPSA 28.7 ✓ Ro5 ✓ Clean Cc1cc2c(cc1C)nc[nH]2
IND RCSB PDB Q05603 117.2 Da LogP 2.17 TPSA 15.8 ✓ Ro5 ✓ Clean c1ccc2c(c1)cc[nH]2
IPH RCSB PDB Q05603 94.1 Da LogP 1.39 TPSA 20.2 ✓ Ro5 ✓ Clean c1ccc(cc1)O
MCT RCSB PDB Q05603 124.1 Da LogP 1.41 TPSA 40.5 ✓ Ro5 Alert Cc1ccc(c(c1)O)O
NCN RCSB PDB Q05603 335.2 Da LogP -2.23 TPSA 160.5 ✓ Ro5 ✓ Clean c1cc(c[n+](c1)[C@H]2[C@@H]([C@@H]([C@H](O2)CO[P…
NIO RCSB PDB Q05603 123.1 Da LogP 0.78 TPSA 50.2 ✓ Ro5 ✓ Clean c1cc(cnc1)C(=O)O
P2P RCSB PDB Q05603 348.2 Da LogP -1.74 TPSA 180.3 ✓ Ro5 ✓ Clean c1c2c(ncn2[C@@H]3[C@@H]([C@@H]([C@H](O3)COP(=O)…
PCR RCSB PDB Q05603 108.1 Da LogP 1.70 TPSA 20.2 ✓ Ro5 ✓ Clean Cc1ccc(cc1)O
PMO RCSB PDB Q05603 360.3 Da LogP -0.23 TPSA 143.5 ✓ Ro5 ✓ Clean COc1ccc2c(c1)ncn2[C@@H]3[C@@H]([C@@H]([C@H](O3)…
RBZ RCSB PDB Q05603 358.3 Da LogP 0.38 TPSA 134.3 ✓ Ro5 ✓ Clean Cc1cc2c(cc1C)n(cn2)[C@@H]3[C@@H]([C@@H]([C@H](O…
RMB RCSB PDB Q05603 344.3 Da LogP 0.07 TPSA 134.3 ✓ Ro5 ✓ Clean Cc1ccc2c(c1)ncn2[C@@H]3[C@@H]([C@@H]([C@H](O3)C…
XYD RCSB PDB Q05603 121.2 Da LogP 1.89 TPSA 26.0 ✓ Ro5 ✓ Clean Cc1ccc(c(c1)N)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.

Cross-references

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