Ligand profile

83A

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

Bound to: KP13_03811 — Phosphoribosylglycinamide formyltransferase

Via homolog PDB 5j9f UniProt P22102 Formula C₂₀H₂₂N₆O₆
Mol. weight 442.43 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
83A
PDB
5j9f
UniProt (similar protein)
P22102
Target protein
KP13_03811

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 442.43 Da
LogP (Crippen) 0.54
H-bond donors 7
H-bond acceptors 7
TPSA 203.29 Ų
Rotatable bonds 10
Aromatic rings 3 / 3
Heavy atoms 32
Fraction sp³ C 0.25
Formula C₂₀H₂₂N₆O₆

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 203.3
  • −1 ≤ LogP ≤ 5 0.54
Lipinski's Rule of Five Pass 1 violation
  • MW ≤ 500 Da 442.4
  • LogP ≤ 5 0.54
  • H-bond donors ≤ 5 7
  • H-bond acceptors ≤ 10 7
Veber's rules Fail
  • Rotatable bonds ≤ 10 10
  • TPSA ≤ 140 Ų 203.3
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1cc(ccc1C(=O)N[C@@H](CCC(=O)O)C(=O)O)NCCc2cc3c([nH]2)N=C(NC3=O)N
InChI 
InChI=1S/C20H22N6O6/c21-20-25-16-13(18(30)26-20)9-12(23-16)7-8-22-11-3-1-10(2-4-11)17(29)24-14(19(31)32)5-6-15(27)28/h1-4,9,14,22H,5-8H2,(H,24,29)(H,27,28)(H,31,32)(H4,21,23,25,26,30)/t14-/m0/s1
InChIKey 
UFNWIIALSMNORN-AWEZNQCLSA-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
PF00551

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_03811.

PDB 22

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

Ligand PDB entry

ChEMBL 74

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)