Protein profile

KP13_03826

Phosphoribosylaminoimidazole-succinocarboxamide synthase

Genome: KpKP13

Gene: AHE43310.1 purC Structure source: AlphaFold + ColabFold UniProt A0A0H3GRJ1
Amino acids 237
Annotations 3
Features 18
PDB binders 7
Druggability 0.434

Overview

Basic information about this protein and its source genome.

Accession
KP13_03826
Gene
AHE43310.1 purC
Status
annotated
Amino acids
237
Structure source
AlphaFold + ColabFold

Target profile

Computed evidence for target prioritization.

Human off-target
hit
Human identity (%)
31.674
Human E-value
8.26e-28
Gut microbiome off-target
hit
Essential (DEG)
Y
DEG identity (%)
72.881
DEG E-value
3.73e-127
Localization
Cytoplasmic
ColabFold pLDDT
96.94

Selected Druggability evidence

AlphaFold / UniProt model

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 0.434
Structure A0A0H3GRJ1
Pocket Pocket 2
P2Rank 0.942
Structure A0A0H3GRJ1
Pocket Pocket 1
ColabFold model
FPocket 0.347 · Pocket 1
P2Rank 0.934 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 139 / 4744 genomes with a hit
Normalized 0.029

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

3 GO

Gene Ontology (GO)

3
  • GO:0004639 Catalysis of the reaction: 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxylate + L-aspartate + ATP = (2S)-2-[5-amino-1-(5-phospho-beta-D-ribosyl)imidazole-4-carboxamido]succinate + ADP + 2 H+ + phosphate.
  • GO:0006164 The chemical reactions and pathways resulting in the formation of a purine nucleotide, a compound consisting of nucleoside (a purine base linked to a deoxyribose or ribose sugar) esterified with a phosphate group at either the 3' or 5'-hydroxyl group of the sugar.
  • 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 Features

Domain/signature hits from InterPro and related databases.

18 records
Show feature table
Start End DB Term Name
4 234 Hamap MF_00137 Phosphoribosylaminoimidazole-succinocarboxamide synthase [purC].
4 234 InterPro IPR028923 SAICAR synthetase/ADE2, N-terminal
6 231 Gene3D G3DSA:3.30.200.20 Phosphorylase Kinase; domain 1
3 232 SUPERFAMILY SSF56104 SAICAR synthase-like
6 95 FunFam G3DSA:3.30.200.20:FF:000086 Phosphoribosylaminoimidazole-succinocarboxamide synthase
3 235 NCBIfam TIGR00081 phosphoribosylaminoimidazolesuccinocarboxamide synthase
3 235 InterPro IPR001636 Phosphoribosylaminoimidazole-succinocarboxamide synthase
4 229 PANTHER PTHR43599 MULTIFUNCTIONAL PROTEIN ADE2
7 231 Pfam PF01259 SAICAR synthetase
7 231 InterPro IPR028923 SAICAR synthetase/ADE2, N-terminal
86 100 ProSitePatterns PS01057 SAICAR synthetase signature 1.
86 100 InterPro IPR018236 SAICAR synthetase, conserved site
85 220 Gene3D G3DSA:3.30.470.20 -
85 220 FunFam G3DSA:3.30.470.20:FF:000006 Phosphoribosylaminoimidazole-succinocarboxamide synthase
173 181 ProSitePatterns PS01058 SAICAR synthetase signature 2.
173 181 InterPro IPR018236 SAICAR synthetase, conserved site
7 233 CDD cd01415 SAICAR_synt_PurC
7 233 InterPro IPR033934 Bacterial and archaeal 5-aminoimidazole-4-(N-succinylcarboxamide) ribonucleotide synthase

3D Structure

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

3D visualization script Full viewer

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Structural evidence

0 + 2

Experimental PDB entries and predicted models. Click Switch to display a different structure in the viewer.

Entry Method Resolution Chain Coverage Links Status
AlphaFold AF_A0A0H3GRJ1
AlphaFold full sequence Viewing
ColabFold KP13_03826
ColabFold full sequence Loaded
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
2 0.434

Pockets (P2RANK)

Showing top-ranked P2Rank candidates by probability. Probability is color-coded per P2Rank calibration: high (≥ 0.5), medium (0.2 – 0.49), low (< 0.2).

P2RANK Sticks Spheres Surfaces Score Probability Labels Zoom Positions
1 24.94 0.902

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.

81 records

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
144 Q07296 122.1 Da LogP -1.72 TPSA 60.7 ✓ Ro5 ✓ Clean C[N+](CO)(CO)CO
AIR Q07296 295.2 Da LogP -1.81 TPSA 160.3 ✓ Ro5 ✓ Clean c1c(n(cn1)[C@H]2[C@@H]([C@@H]([C@H](O2)COP(=O)(…
ANP P22234 506.2 Da LogP -2.06 TPSA 281.9 3 viol. ✓ Clean c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)…
C2R P0A7D7 339.2 Da LogP -2.11 TPSA 197.6 1 viol. ✓ Clean c1nc(c(n1[C@H]2[C@@H]([C@@H]([C@H](O2)COP(=O)(O…
CO2 P22234 44.0 Da LogP -0.58 TPSA 34.1 ✓ Ro5 ✓ Clean C(=O)=O
OK8 P22234 454.3 Da LogP -3.15 TPSA 264.0 2 viol. ✓ Clean c1nc(c(n1[C@H]2[C@@H]([C@@H]([C@H](O2)COP(=O)(O…
RLK P22234 515.4 Da LogP 1.68 TPSA 125.0 1 viol. ✓ Clean CN(C)CCCS(=O)(=O)N1CCN(CC1)c2ccc(c(c2)NC(=O)c3c…

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.