Ligand profile

CHEMBL515310

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_01863 — Carbonic anhydrase 2

Via homolog UniProt Q5AJ71 Formula C₁₅H₁₃ClN₄O₃S
pchembl 7.35 ~44.7 nM
Mol. weight 364.81 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL515310
UniProt (similar protein)
Q5AJ71
pchembl
7.350 (~44.7 nM)
Target protein
KP13_01863

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 364.81 Da
LogP (Crippen) 1.74
H-bond donors 4
H-bond acceptors 4
TPSA 131.07 Ų
Rotatable bonds 3
Aromatic rings 3 / 3
Heavy atoms 24
Fraction sp³ C 0.00
Formula C₁₅H₁₃ClN₄O₃S

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 131.1
  • −1 ≤ LogP ≤ 5 1.74
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 364.8
  • LogP ≤ 5 1.74
  • H-bond donors ≤ 5 4
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 3
  • TPSA ≤ 140 Ų 131.1
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
NNC(=O)c1[nH]c2ccc(S(N)(=O)=O)cc2c1-c1ccccc1Cl
InChI 
InChI=1S/C15H13ClN4O3S/c16-11-4-2-1-3-9(11)13-10-7-8(24(18,22)23)5-6-12(10)19-14(13)15(21)20-17/h1-7,19H,17H2,(H,20,21)(H2,18,22,23)
InChIKey 
POTAERZUCKEKBH-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)