Ligand profile

CHEMBL521690

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_01863 — Carbonic anhydrase 2

Via homolog UniProt Q5AJ71 Formula C₂₄H₂₅ClN₄O₈S
pchembl 6.92 ~120.2 nM
Mol. weight 565.00 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL521690
UniProt (similar protein)
Q5AJ71
pchembl
6.920 (~120.2 nM)
Target protein
KP13_01863

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 565.00 Da
LogP (Crippen) -1.67
H-bond donors 3
H-bond acceptors 8
TPSA 210.40 Ų
Rotatable bonds 5
Aromatic rings 4 / 4
Heavy atoms 38
Fraction sp³ C 0.17
Formula C₂₄H₂₅ClN₄O₈S

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 210.4
  • −1 ≤ LogP ≤ 5 -1.67
Lipinski's Rule of Five Pass 1 violation
  • MW ≤ 500 Da 565.0
  • LogP ≤ 5 -1.67
  • H-bond donors ≤ 5 3
  • H-bond acceptors ≤ 10 8
Veber's rules Fail
  • Rotatable bonds ≤ 10 5
  • TPSA ≤ 140 Ų 210.4
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
COc1cccc(-c2c(C(=O)N[n+]3c(C)cc(C)cc3C)[nH]c3ccc(S(N)(=O)=O)cc23)c1.[O-][Cl+3]([O-])([O-])[O-]
InChI 
InChI=1S/C24H24N4O4S.ClHO4/c1-14-10-15(2)28(16(3)11-14)27-24(29)23-22(17-6-5-7-18(12-17)32-4)20-13-19(33(25,30)31)8-9-21(20)26-23;2-1(3,4)5/h5-13H,1-4H3,(H3-,25,26,27,29,30,31);(H,2,3,4,5)
InChIKey 
QUVRQVCYBQIILJ-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)