Ligand profile

ZINC4949945

Virtual-screening candidate from ZINC.

Bound to: VK055_4750 — cysteine synthase A

Via homolog UniProt P9WP55 Formula C₁₉H₁₅FN₂O₃S
Tanimoto 0.77
Mol. weight 370.41 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
ZINC4949945
UniProt (similar protein)
P9WP55
Tanimoto
0.768
Target protein
VK055_4750

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 370.41 Da
LogP (Crippen) 4.15
H-bond donors 1
H-bond acceptors 4
TPSA 69.97 Ų
Rotatable bonds 4
Aromatic rings 2 / 3
Heavy atoms 26
Fraction sp³ C 0.11
Formula C₁₉H₁₅FN₂O₃S

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 70.0
  • −1 ≤ LogP ≤ 5 4.15
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 370.4
  • LogP ≤ 5 4.15
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 4
  • TPSA ≤ 140 Ų 70.0
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CCN1C(=O)/C(=C\c2ccc(F)cc2)S/C1=N\c1cccc(C(=O)O)c1
InChI 
InChI=1S/C19H15FN2O3S/c1-2-22-17(23)16(10-12-6-8-14(20)9-7-12)26-19(22)21-15-5-3-4-13(11-15)18(24)25/h3-11H,2H2,1H3,(H,24,25)/b16-10+,21-19-
InChIKey 
QCTHQSRFQADWJO-JSDDMWTDSA-N

Provenance

Annotation context from LigQ_2, the internal Target step that collects PDB, ChEMBL, and ZINC ligand evidence.

Method
LigQ nearest_k
Query
CHEMBL2418481
Homolog
P9WP55

External resources

Open this ligand in third-party databases and cheminformatics tools.

Other ligands for this protein

Quick navigation to other ligands bound to VK055_4750.

PDB 5

Ligands co-crystallized with this protein (structural evidence).

Ligand PDB entry

ChEMBL 15

Compounds with measured inhibitory activity on this target (higher pchembl = more potent).

Compound Potency (pchembl)

ZINC 49

Virtual screening candidates selected by structural similarity to known actives (Tanimoto ≥ 0.5).

Compound Similarity (Tanimoto)