Ligand profile

ZINC1719

Virtual-screening candidate from ZINC.

Bound to: KP13_01960 — Dihydrofolate reductase

Via homolog UniProt Q8Z9J9 Formula C₁₄H₁₈N₄O₂S
Tanimoto 1.00
Mol. weight 306.39 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
ZINC1719
UniProt (similar protein)
Q8Z9J9
Tanimoto
1.000
Target protein
KP13_01960

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 306.39 Da
LogP (Crippen) 1.97
H-bond donors 2
H-bond acceptors 7
TPSA 96.28 Ų
Rotatable bonds 5
Aromatic rings 2 / 2
Heavy atoms 21
Fraction sp³ C 0.29
Formula C₁₄H₁₈N₄O₂S

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 96.3
  • −1 ≤ LogP ≤ 5 1.97
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 306.4
  • LogP ≤ 5 1.97
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 7
Veber's rules Pass
  • Rotatable bonds ≤ 10 5
  • TPSA ≤ 140 Ų 96.3
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
COc1cc(Cc2cnc(N)nc2N)cc(OC)c1SC
InChI 
InChI=1S/C14H18N4O2S/c1-19-10-5-8(6-11(20-2)12(10)21-3)4-9-7-17-14(16)18-13(9)15/h5-7H,4H2,1-3H3,(H4,15,16,17,18)
InChIKey 
HRZQMMXCASMDBP-UHFFFAOYSA-N

Provenance

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

Method
LigQ sequence
Query
CHEMBL56318
Homolog
Q8Z9J9

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_01960.

PDB 34

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

Ligand PDB entry

ChEMBL 100

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)