Ligand profile

2QX

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

Bound to: VK055_4295 — peptidase M16 inactive domain protein

Via homolog PDB 4pfc UniProt P14735 Formula C₄₄H₅₄FN₅O₄
Mol. weight 735.94 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
2QX
PDB
4pfc
UniProt (similar protein)
P14735
Target protein
VK055_4295

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 735.94 Da
LogP (Crippen) 7.85
H-bond donors 3
H-bond acceptors 6
TPSA 126.65 Ų
Rotatable bonds 15
Aromatic rings 4 / 6
Heavy atoms 54
Fraction sp³ C 0.45
Formula C₄₄H₅₄FN₅O₄

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 126.6
  • −1 ≤ LogP ≤ 5 7.85
Lipinski's Rule of Five Fail 2 violations
  • MW ≤ 500 Da 735.9
  • LogP ≤ 5 7.85
  • H-bond donors ≤ 5 3
  • H-bond acceptors ≤ 10 6
Veber's rules Fail
  • Rotatable bonds ≤ 10 15
  • TPSA ≤ 140 Ų 126.6
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
COC(=O)NC[C@@H](Cc1cc2ccccc2nc1)c3cc(ccc3F)CCCCCc4ccc(cc4)NC(=O)[C@H](C5CCCCC5)N6CCC[C@@H](C6=O)N
InChI 
InChI=1S/C44H54FN5O4/c1-54-44(53)48-29-35(26-32-25-34-15-8-9-17-40(34)47-28-32)37-27-31(20-23-38(37)45)12-5-2-4-11-30-18-21-36(22-19-30)49-42(51)41(33-13-6-3-7-14-33)50-24-10-16-39(46)43(50)52/h8-9,15,17-23,25,27-28,33,35,39,41H,2-7,10-14,16,24,26,29,46H2,1H3,(H,48,53)(H,49,51)/t35-,39+,41+/m1/s1
InChIKey 
SDVPSGCYRLUZSS-WXSHXSFMSA-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
PF00675' 'PF05193' 'PF16187

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_4295.

PDB 15

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

Ligand PDB entry

ChEMBL 12

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)