Ligand profile

NOC

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

Bound to: KP13_04751 — Adenosylhomocysteinase

Via homolog PDB 1li4 UniProt P23526 Formula C₁₁H₁₅N₅O₃
Mol. weight 265.27 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
NOC
PDB
1li4
UniProt (similar protein)
P23526
Target protein
KP13_04751

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 265.27 Da
LogP (Crippen) -1.32
H-bond donors 4
H-bond acceptors 8
TPSA 130.31 Ų
Rotatable bonds 2
Aromatic rings 2 / 3
Heavy atoms 19
Fraction sp³ C 0.55
Formula C₁₁H₁₅N₅O₃

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 130.3
  • −1 ≤ LogP ≤ 5 -1.32
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 265.3
  • LogP ≤ 5 -1.32
  • H-bond donors ≤ 5 4
  • H-bond acceptors ≤ 10 8
Veber's rules Pass
  • Rotatable bonds ≤ 10 2
  • TPSA ≤ 140 Ų 130.3
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1nc(c2c(n1)n(cn2)[C@@H]3CC([C@@H]([C@H]3O)O)CO)N
InChI 
InChI=1S/C11H15N5O3/c12-10-7-11(14-3-13-10)16(4-15-7)6-1-5(2-17)8(18)9(6)19/h3-6,8-9,17-19H,1-2H2,(H2,12,13,14)/t5?,6-,8+,9+/m1/s1
InChIKey 
UGRNVLGKAGREKS-LUWNHBIJSA-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
PF00670' 'PF05221

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_04751.

PDB 6

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 50

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

Compound Similarity (Tanimoto)