Ligand profile

ZINC13815072

Virtual-screening candidate from ZINC.

Bound to: KP13_02393 — 6-carboxy-5,6,7,8-tetrahydropterin synthase

Via homolog UniProt P65870 Formula C₉H₁₅N₅O₃
Tanimoto 0.58
Mol. weight 241.25 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
ZINC13815072
UniProt (similar protein)
P65870
Tanimoto
0.578
Target protein
KP13_02393

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 241.25 Da
LogP (Crippen) -1.70
H-bond donors 6
H-bond acceptors 7
TPSA 136.29 Ų
Rotatable bonds 2
Aromatic rings 1 / 2
Heavy atoms 17
Fraction sp³ C 0.56
Formula C₉H₁₅N₅O₃

Drug-likeness

Descriptor-based ADME screening flags from SMILES. These are not experimental toxicity results.

Permeability proxy Check

Estimated from TPSA and LogP only: TPSA ≤ 90 Ų and −1 ≤ LogP ≤ 5 are treated as a favorable small-molecule permeability screen.

  • TPSA ≤ 90 Ų 136.3
  • −1 ≤ LogP ≤ 5 -1.70
Lipinski's Rule of Five Pass 1 violation
  • MW ≤ 500 Da 241.3
  • LogP ≤ 5 -1.70
  • H-bond donors ≤ 5 6
  • H-bond acceptors ≤ 10 7
Veber's rules Pass
  • Rotatable bonds ≤ 10 2
  • TPSA ≤ 140 Ų 136.3
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
C[C@@H](O)[C@@H](O)[C@H]1CNc2nc(N)[nH]c(=O)c2N1
InChI 
InChI=1S/C9H15N5O3/c1-3(15)6(16)4-2-11-7-5(12-4)8(17)14-9(10)13-7/h3-4,6,12,15-16H,2H2,1H3,(H4,10,11,13,14,17)/t3-,4-,6-/m1/s1
InChIKey 
FNKQXYHWGSIFBK-ZMIZWQJLSA-N

Provenance

Annotation context from LigQ_2, the internal Target step that collects PDB, ChEMBL, and ZINC ligand evidence.

Method
LigQ sequence
Query
2K8
Homolog
P65870

External resources

Open this ligand in third-party databases and cheminformatics tools.

Other ligands for this protein

Quick navigation to other ligands bound to KP13_02393.

PDB 3

Ligands co-crystallized with this protein (structural evidence).

Ligand PDB entry

ZINC 33

Virtual screening candidates selected by structural similarity to known actives (Tanimoto ≥ 0.5).

Compound Similarity (Tanimoto)