Ligand profile

OP1

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

Bound to: KP13_01017 — Lysine-arginine-ornithine-binding periplasmic protein

Via homolog PDB 4pow UniProt P35120 Formula C₁₁H₁₈N₄O₅
Mol. weight 286.29 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
OP1
PDB
4pow
UniProt (similar protein)
P35120
Target protein
KP13_01017

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 286.29 Da
LogP (Crippen) -1.22
H-bond donors 5
H-bond acceptors 4
TPSA 156.81 Ų
Rotatable bonds 7
Aromatic rings 0 / 1
Heavy atoms 20
Fraction sp³ C 0.64
Formula C₁₁H₁₈N₄O₅

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 156.8
  • −1 ≤ LogP ≤ 5 -1.22
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 286.3
  • LogP ≤ 5 -1.22
  • H-bond donors ≤ 5 5
  • H-bond acceptors ≤ 10 4
Veber's rules Fail
  • Rotatable bonds ≤ 10 7
  • TPSA ≤ 140 Ų 156.8
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
[H]/N=C(\N)/NCCC[C@@H](C(=O)O)N1[C@H](CCC1=O)C(=O)O
InChI 
InChI=1S/C11H18N4O5/c12-11(13)14-5-1-2-6(9(17)18)15-7(10(19)20)3-4-8(15)16/h6-7H,1-5H2,(H,17,18)(H,19,20)(H4,12,13,14)/t6-,7+/m0/s1
InChIKey 
GTRMYGUJZGMZEF-NKWVEPMBSA-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
PF00497

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_01017.

PDB 7

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)