Ligand profile

ZINC23950802

Virtual-screening candidate from ZINC.

Bound to: KP13_03770 — Histidine biosynthesis bifunctional protein

Via homolog UniProt P0CO23 Formula C₁₉H₂₀N₄O₂
Tanimoto 0.52
Mol. weight 336.39 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
ZINC23950802
UniProt (similar protein)
P0CO23
Tanimoto
0.525
Target protein
KP13_03770

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 336.39 Da
LogP (Crippen) 2.91
H-bond donors 1
H-bond acceptors 5
TPSA 69.04 Ų
Rotatable bonds 6
Aromatic rings 3 / 3
Heavy atoms 25
Fraction sp³ C 0.21
Formula C₁₉H₂₀N₄O₂

Drug-likeness

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

Permeability proxy High

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 69.0
  • −1 ≤ LogP ≤ 5 2.91
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 336.4
  • LogP ≤ 5 2.91
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 5
Veber's rules Pass
  • Rotatable bonds ≤ 10 6
  • TPSA ≤ 140 Ų 69.0
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
C[C@@H](Oc1ccccc1)C(=O)N[C@H](C)c1ccc(-n2cncn2)cc1
InChI 
InChI=1S/C19H20N4O2/c1-14(16-8-10-17(11-9-16)23-13-20-12-21-23)22-19(24)15(2)25-18-6-4-3-5-7-18/h3-15H,1-2H3,(H,22,24)/t14-,15-/m1/s1
InChIKey 
MDNIEOBKGBNYGB-HUUCEWRRSA-N

Provenance

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

Method
LigQ nearest_k
Query
CHEMBL418642
Homolog
P0CO23

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_03770.

PDB 5

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

Ligand PDB entry

ChEMBL 15

Compounds with measured inhibitory activity on this target (higher pchembl = more potent).

Compound Potency (pchembl)

ZINC 33

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

Compound Similarity (Tanimoto)