Binder profile

AT4

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

Bound to: PA5366 — phosphate ABC transporter ATP-binding protein

Via homolog PDB 2olk UniProt D0VWX4 C10H15N5O9P2S
Mol. weight 443.27 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
AT4
PDB
2olk
UniProt (similar protein)
D0VWX4
Target protein
PA5366

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 443.27 Da
LogP (Crippen) -0.81
H-bond donors 6
H-bond acceptors 12
TPSA 212.37 Ų
Rotatable bonds 6
Aromatic rings 2 / 3
Heavy atoms 27
Fraction sp³ C 0.50
Formula C10H15N5O9P2S

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.

Lipinski's Rule of Five Fail 2 violations
  • MW ≤ 500 Da 443.3
  • LogP ≤ 5 -0.81
  • H-bond donors ≤ 5 6
  • H-bond acceptors ≤ 10 12
Veber's rules Fail
  • Rotatable bonds ≤ 10 6
  • TPSA ≤ 140 Ų 212.4
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)CO[P@@](=O)(O)O[P@@](=O)(O)S)O)O)N
InChI 
InChI=1S/C10H15N5O9P2S/c11-8-5-9(13-2-12-8)15(3-14-5)10-7(17)6(16)4(23-10)1-22-25(18,19)24-26(20,21)27/h2-4,6-7,10,16-17H,1H2,(H,18,19)(H2,11,12,13)(H2,20,21,27)/t4-,6-,7-,10-/m1/s1
InChIKey 
HCIKUKNAJRJFOW-KQYNXXCUSA-N

Provenance

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

Method
LigQ nearest_k
Source
PDB
Binding sites
PF00005

External resources

Open this ligand in third-party databases and cheminformatics tools.

Other binders for this protein

Quick navigation to other ligands bound to PA5366.

PDB 6

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)