Ligand profile

CHEMBL5774638

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_04637 — L-lactate dehydrogenase cytochrome

Via homolog UniProt Q9UJM8 Formula C₁₆H₁₀N₄O₃
pchembl 8.52 ~3.0 nM
Mol. weight 306.28 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL5774638
UniProt (similar protein)
Q9UJM8
pchembl
8.520 (~3.0 nM)
Target protein
KP13_04637

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 306.28 Da
LogP (Crippen) 2.09
H-bond donors 2
H-bond acceptors 5
TPSA 100.99 Ų
Rotatable bonds 3
Aromatic rings 3 / 3
Heavy atoms 23
Fraction sp³ C 0.00
Formula C₁₆H₁₀N₄O₃

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 101.0
  • −1 ≤ LogP ≤ 5 2.09
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 306.3
  • LogP ≤ 5 2.09
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 5
Veber's rules Pass
  • Rotatable bonds ≤ 10 3
  • TPSA ≤ 140 Ų 101.0
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
O=C(O)c1nn[nH]c1Oc1cccc(C#Cc2cccnc2)c1
InChI 
InChI=1S/C16H10N4O3/c21-16(22)14-15(19-20-18-14)23-13-5-1-3-11(9-13)6-7-12-4-2-8-17-10-12/h1-5,8-10H,(H,21,22)(H,18,19,20)
InChIKey 
UXVTWBLSRAYKPJ-UHFFFAOYSA-N

Provenance

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

Method
LigQ nearest_k
Source
ChEMBL
Activity
1225655
Binding sites
PF01070

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_04637.

PDB 41

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

Ligand PDB entry

ChEMBL 99

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

Compound Potency (pchembl)

ZINC 50

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

Compound Similarity (Tanimoto)