Ligand profile

78H

Ligand co-crystallized with a similar protein (Protein Data Bank).

Bound to: KP13_03130 — Dihydropteroate synthase type-1

Via homolog PDB 3tya UniProt Q81VW8 Formula C₁₄H₁₄N₆O₃
Mol. weight 314.31 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
78H
PDB
3tya
UniProt (similar protein)
Q81VW8
Target protein
KP13_03130

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 314.31 Da
LogP (Crippen) 0.66
H-bond donors 5
H-bond acceptors 7
TPSA 145.49 Ų
Rotatable bonds 4
Aromatic rings 2 / 3
Heavy atoms 23
Fraction sp³ C 0.14
Formula C₁₄H₁₄N₆O₃

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 145.5
  • −1 ≤ LogP ≤ 5 0.66
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 314.3
  • LogP ≤ 5 0.66
  • H-bond donors ≤ 5 5
  • H-bond acceptors ≤ 10 7
Veber's rules Fail
  • Rotatable bonds ≤ 10 4
  • TPSA ≤ 140 Ų 145.5
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1cc(ccc1C(=O)O)NCC2=NC3=C(NC2)N=C(NC3=O)N
InChI 
InChI=1S/C14H14N6O3/c15-14-19-11-10(12(21)20-14)18-9(6-17-11)5-16-8-3-1-7(2-4-8)13(22)23/h1-4,16H,5-6H2,(H,22,23)(H4,15,17,19,20,21)
InChIKey 
WBFYVDCHGVNRBH-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
PDB
Binding sites
PF00809

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_03130.

PDB 46

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

Ligand PDB entry

ChEMBL 26

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)