Ligand profile

CHEMBL1369708

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_01863 — Carbonic anhydrase 2

Via homolog UniProt Q5AJ71 Formula C₁₄H₁₁N₃O₃S
pchembl 7.06 ~87.1 nM
Mol. weight 301.33 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL1369708
UniProt (similar protein)
Q5AJ71
pchembl
7.060 (~87.1 nM)
Target protein
KP13_01863

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 301.33 Da
LogP (Crippen) 1.41
H-bond donors 2
H-bond acceptors 4
TPSA 101.62 Ų
Rotatable bonds 2
Aromatic rings 2 / 3
Heavy atoms 21
Fraction sp³ C 0.00
Formula C₁₄H₁₁N₃O₃S

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 1.41
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 301.3
  • LogP ≤ 5 1.41
  • 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 
NS(=O)(=O)c1ccc(N=C2C(=O)Nc3ccccc32)cc1
InChI 
InChI=1S/C14H11N3O3S/c15-21(19,20)10-7-5-9(6-8-10)16-13-11-3-1-2-4-12(11)17-14(13)18/h1-8H,(H2,15,19,20)(H,16,17,18)
InChIKey 
FXNKQWYBLXKGFU-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)