Ligand profile

ZINC77300937

Virtual-screening candidate from ZINC.

Bound to: KP13_05440 — Peptide transport periplasmic protein sapA

Via homolog UniProt B8F653 Formula C₁₃H₂₃N₃O₇S
Tanimoto 0.73
Mol. weight 365.41 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
ZINC77300937
UniProt (similar protein)
B8F653
Tanimoto
0.733
Target protein
KP13_05440

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 365.41 Da
LogP (Crippen) -2.02
H-bond donors 6
H-bond acceptors 7
TPSA 179.05 Ų
Rotatable bonds 12
Aromatic rings 0 / 0
Heavy atoms 24
Fraction sp³ C 0.69
Formula C₁₃H₂₃N₃O₇S

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 179.0
  • −1 ≤ LogP ≤ 5 -2.02
Lipinski's Rule of Five Pass 1 violation
  • MW ≤ 500 Da 365.4
  • LogP ≤ 5 -2.02
  • H-bond donors ≤ 5 6
  • H-bond acceptors ≤ 10 7
Veber's rules Fail
  • Rotatable bonds ≤ 10 12
  • TPSA ≤ 140 Ų 179.0
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
C[C@H](CO)SC[C@H](NC(=O)CC[C@H](N)C(=O)O)C(=O)NCC(=O)O
InChI 
InChI=1S/C13H23N3O7S/c1-7(5-17)24-6-9(12(21)15-4-11(19)20)16-10(18)3-2-8(14)13(22)23/h7-9,17H,2-6,14H2,1H3,(H,15,21)(H,16,18)(H,19,20)(H,22,23)/t7-,8+,9+/m1/s1
InChIKey 
QFCICQXODPSLQK-VGMNWLOBSA-N

Provenance

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

Method
LigQ nearest_k
Query
GDS
Homolog
B8F653

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_05440.

PDB 5

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

Ligand PDB entry

ZINC 49

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

Compound Similarity (Tanimoto)