Ligand profile

CHEMBL105006

Bioactivity hit from ChEMBL on a similar protein.

Bound to: KP13_01960 — Dihydrofolate reductase

Via homolog UniProt P0ABQ4 Formula C₁₉H₂₆N₄O₅
pchembl 8.51 ~3.1 nM
Mol. weight 390.44 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CHEMBL105006
UniProt (similar protein)
P0ABQ4
pchembl
8.510 (~3.1 nM)
Target protein
KP13_01960

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 390.44 Da
LogP (Crippen) 2.27
H-bond donors 3
H-bond acceptors 8
TPSA 142.81 Ų
Rotatable bonds 11
Aromatic rings 2 / 2
Heavy atoms 28
Fraction sp³ C 0.42
Formula C₁₉H₂₆N₄O₅

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 142.8
  • −1 ≤ LogP ≤ 5 2.27
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 390.4
  • LogP ≤ 5 2.27
  • H-bond donors ≤ 5 3
  • H-bond acceptors ≤ 10 8
Veber's rules Fail
  • Rotatable bonds ≤ 10 11
  • TPSA ≤ 140 Ų 142.8
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
COc1cc(Cc2cnc(N)nc2N)cc(OC)c1OCCCCCC(=O)O
InChI 
InChI=1S/C19H26N4O5/c1-26-14-9-12(8-13-11-22-19(21)23-18(13)20)10-15(27-2)17(14)28-7-5-3-4-6-16(24)25/h9-11H,3-8H2,1-2H3,(H,24,25)(H4,20,21,22,23)
InChIKey 
WWTCDGULAKAMHM-UHFFFAOYSA-N

Provenance

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

Method
LigQ sequence
Source
ChEMBL
Binding sites
PF00186

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_01960.

PDB 34

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

Ligand PDB entry

ChEMBL 99

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)