Ligand profile

LUM

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

Bound to: HT085_RS00350 — bifunctional riboflavin kinase/FAD synthetase

Via homolog PDB 1s4m UniProt Q9WZW1 Formula C₁₂H₁₀N₄O₂
Mol. weight 242.24 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
LUM
PDB
1s4m
UniProt (similar protein)
Q9WZW1
Target protein
HT085_RS00350

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 242.24 Da
LogP (Crippen) 0.78
H-bond donors 2
H-bond acceptors 4
TPSA 91.50 Ų
Rotatable bonds 0
Aromatic rings 3 / 3
Heavy atoms 18
Fraction sp³ C 0.17
Formula C₁₂H₁₀N₄O₂

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 91.5
  • −1 ≤ LogP ≤ 5 0.78
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 242.2
  • LogP ≤ 5 0.78
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 0
  • TPSA ≤ 140 Ų 91.5
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
Cc1cc2c(cc1C)nc3c(n2)C(=O)NC(=O)N3
InChI 
InChI=1S/C12H10N4O2/c1-5-3-7-8(4-6(5)2)14-10-9(13-7)11(17)16-12(18)15-10/h3-4H,1-2H3,(H2,14,15,16,17,18)
InChIKey 
ZJTJUVIJVLLGSP-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
PF01687

External resources

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

Other ligands for this protein

Quick navigation to other ligands bound to HT085_RS00350.

PDB 2

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

Ligand PDB entry

ZINC 50

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

Compound Similarity (Tanimoto)