Ligand profile

PAB

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

Bound to: KP13_03124 — Dihydropteroate synthase type-1

Via homolog PDB 2dza UniProt Q5SLV2 Formula C₇H₇NO₂
Mol. weight 137.14 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
PAB
PDB
2dza
UniProt (similar protein)
Q5SLV2
Target protein
KP13_03124

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 137.14 Da
LogP (Crippen) 0.97
H-bond donors 2
H-bond acceptors 2
TPSA 63.32 Ų
Rotatable bonds 1
Aromatic rings 1 / 1
Heavy atoms 10
Fraction sp³ C 0.00
Formula C₇H₇NO₂

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 63.3
  • −1 ≤ LogP ≤ 5 0.97
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 137.1
  • LogP ≤ 5 0.97
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 2
Veber's rules Pass
  • Rotatable bonds ≤ 10 1
  • TPSA ≤ 140 Ų 63.3
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1cc(ccc1C(=O)O)N
InChI 
InChI=1S/C7H7NO2/c8-6-3-1-5(2-4-6)7(9)10/h1-4H,8H2,(H,9,10)
InChIKey 
ALYNCZNDIQEVRV-UHFFFAOYSA-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
PF00809

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_03124.

PDB 46

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

Ligand PDB entry

ChEMBL 26

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)