Ligand profile

CHEMBL43742

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_04428 — Adenosine deaminase

Via homolog UniProt P56658 Formula C₁₉H₂₅N₅O
pchembl 9.02 ~1.0 nM
Mol. weight 339.44 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL43742
UniProt (similar protein)
P56658
pchembl
9.020 (~1.0 nM)
Target protein
KP13_04428

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 339.44 Da
LogP (Crippen) 3.13
H-bond donors 2
H-bond acceptors 6
TPSA 89.85 Ų
Rotatable bonds 8
Aromatic rings 3 / 3
Heavy atoms 25
Fraction sp³ C 0.42
Formula C₁₉H₂₅N₅O

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 89.8
  • −1 ≤ LogP ≤ 5 3.13
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 339.4
  • LogP ≤ 5 3.13
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 6
Veber's rules Pass
  • Rotatable bonds ≤ 10 8
  • TPSA ≤ 140 Ų 89.8
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
C[C@H](O)[C@@H](CCCCCc1ccccc1)n1cnc2c(N)ncnc21
InChI 
InChI=1S/C19H25N5O/c1-14(25)16(11-7-3-6-10-15-8-4-2-5-9-15)24-13-23-17-18(20)21-12-22-19(17)24/h2,4-5,8-9,12-14,16,25H,3,6-7,10-11H2,1H3,(H2,20,21,22)/t14-,16+/m0/s1
InChIKey 
JVHQYTUGDFGNES-GOEBONIOSA-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
Binding sites
PF00962

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_04428.

PDB 12

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)