Ligand profile

COS

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

Bound to: VK055_2331 — acyl-CoA dehydrogenase, C-terminal domain protein

Via homolog PDB 4l1f UniProt D2RL84 Formula C₂₁H₃₆N₇O₁₆P₃S₂
Mol. weight 799.61 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
COS
PDB
4l1f
UniProt (similar protein)
D2RL84
Target protein
VK055_2331

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 799.61 Da
LogP (Crippen) -1.02
H-bond donors 10
H-bond acceptors 19
TPSA 346.56 Ų
Rotatable bonds 19
Aromatic rings 2 / 3
Heavy atoms 49
Fraction sp³ C 0.67
Formula C₂₁H₃₆N₇O₁₆P₃S₂

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 346.6
  • −1 ≤ LogP ≤ 5 -1.02
Lipinski's Rule of Five Fail 3 violations
  • MW ≤ 500 Da 799.6
  • LogP ≤ 5 -1.02
  • H-bond donors ≤ 5 10
  • H-bond acceptors ≤ 10 19
Veber's rules Fail
  • Rotatable bonds ≤ 10 19
  • TPSA ≤ 140 Ų 346.6
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CC(C)(CO[P@](=O)(O)O[P@](=O)(O)OC[C@@H]1[C@H]([C@H]([C@@H](O1)n2cnc3c2ncnc3N)O)OP(=O)(O)O)[C@H](C(=O)NCCC(=O)NCCSS)O
InChI 
InChI=1S/C21H36N7O16P3S2/c1-21(2,16(31)19(32)24-4-3-12(29)23-5-6-49-48)8-41-47(38,39)44-46(36,37)40-7-11-15(43-45(33,34)35)14(30)20(42-11)28-10-27-13-17(22)25-9-26-18(13)28/h9-11,14-16,20,30-31,48H,3-8H2,1-2H3,(H,23,29)(H,24,32)(H,36,37)(H,38,39)(H2,22,25,26)(H2,33,34,35)/t11-,14-,15-,16+,20-/m1/s1
InChIKey 
REVPHPVBPSIEKM-IBOSZNHHSA-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
PF00441' 'PF02770' 'PF08028

External resources

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

Other ligands for this protein

Quick navigation to other ligands bound to VK055_2331.

PDB 4

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

Ligand PDB entry

ZINC 5

Virtual screening candidates selected by structural similarity to known actives (Tanimoto ≥ 0.5).

Compound Similarity (Tanimoto)