Ligand profile

ZINC156878

Virtual-screening candidate from ZINC.

Bound to: KP13_05503 — Aspartate-semialdehyde dehydrogenase

Via homolog UniProt Q9KQG2 Formula C₇H₄ClNO₄
Tanimoto 0.57
Mol. weight 201.56 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
ZINC156878
UniProt (similar protein)
Q9KQG2
Tanimoto
0.571
Target protein
KP13_05503

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 201.56 Da
LogP (Crippen) 1.95
H-bond donors 1
H-bond acceptors 3
TPSA 80.44 Ų
Rotatable bonds 2
Aromatic rings 1 / 1
Heavy atoms 13
Fraction sp³ C 0.00
Formula C₇H₄ClNO₄

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 80.4
  • −1 ≤ LogP ≤ 5 1.95
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 201.6
  • LogP ≤ 5 1.95
  • H-bond donors ≤ 5 1
  • H-bond acceptors ≤ 10 3
Veber's rules Pass
  • Rotatable bonds ≤ 10 2
  • TPSA ≤ 140 Ų 80.4
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
O=C(O)c1cc([N+](=O)[O-])ccc1Cl
InChI 
InChI=1S/C7H4ClNO4/c8-6-2-1-4(9(12)13)3-5(6)7(10)11/h1-3H,(H,10,11)
InChIKey 
QUEKGYQTRJVEQC-UHFFFAOYSA-N

Provenance

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

Method
LigQ nearest_k
Query
4NO
Homolog
Q9KQG2

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_05503.

PDB 4

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

Ligand PDB entry

ChEMBL 1

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)