Ligand profile

CHEMBL3633555

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_01863 — Carbonic anhydrase 2

Via homolog UniProt Q5AJ71 Formula C₁₅H₁₃N₃O₃S
pchembl 6.80 ~158.5 nM
Mol. weight 315.35 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL3633555
UniProt (similar protein)
Q5AJ71
pchembl
6.800 (~158.5 nM)
Target protein
KP13_01863

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 315.35 Da
LogP (Crippen) 1.72
H-bond donors 2
H-bond acceptors 4
TPSA 101.62 Ų
Rotatable bonds 2
Aromatic rings 2 / 3
Heavy atoms 22
Fraction sp³ C 0.07
Formula C₁₅H₁₃N₃O₃S

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 101.6
  • −1 ≤ LogP ≤ 5 1.72
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 315.4
  • LogP ≤ 5 1.72
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 2
  • TPSA ≤ 140 Ų 101.6
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
Cc1ccc2c(c1)/C(=N/c1cccc(S(N)(=O)=O)c1)C(=O)N2
InChI 
InChI=1S/C15H13N3O3S/c1-9-5-6-13-12(7-9)14(15(19)18-13)17-10-3-2-4-11(8-10)22(16,20)21/h2-8H,1H3,(H2,16,20,21)(H,17,18,19)
InChIKey 
MGEFUUBEKQFGOS-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
Binding sites
PF00484

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_01863.

PDB 5

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)