Ligand profile

KJK

Ligand co-crystallized with this exact protein (Protein Data Bank).

Bound to: KP13_06703 — Carbepenem-hydrolyzing beta-lactamase KPC2

Direct evidence PDB 6td1 UniProt Q9F663 Formula C₁₉H₂₈BN₃O₅
Mol. weight 389.26 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
KJK
PDB
6td1
UniProt (this protein)
Q9F663
Target protein
KP13_06703

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 389.26 Da
LogP (Crippen) 0.32
H-bond donors 5
H-bond acceptors 6
TPSA 133.91 Ų
Rotatable bonds 7
Aromatic rings 1 / 3
Heavy atoms 28
Fraction sp³ C 0.58
Formula C₁₉H₂₈BN₃O₅

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 133.9
  • −1 ≤ LogP ≤ 5 0.32
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 389.3
  • LogP ≤ 5 0.32
  • H-bond donors ≤ 5 5
  • H-bond acceptors ≤ 10 6
Veber's rules Pass
  • Rotatable bonds ≤ 10 7
  • TPSA ≤ 140 Ų 133.9
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
B1([C@H](Cc2cccc(c2O1)C(=O)O)NC(=O)CC3CCC(CC3)NCCN)O
InChI 
InChI=1S/C19H28BN3O5/c21-8-9-22-14-6-4-12(5-7-14)10-17(24)23-16-11-13-2-1-3-15(19(25)26)18(13)28-20(16)27/h1-3,12,14,16,22,27H,4-11,21H2,(H,23,24)(H,25,26)/t12?,14?,16-/m0/s1
InChIKey 
PFZUWUXKQPRWAL-PXCJXSSVSA-N

Provenance

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

Method
LigQ sequence
Source
PDB
Binding sites
PF00144' 'PF13354

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_06703.

PDB 35

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)