Ligand profile

CZA

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

Bound to: VK055_1980 — HAD ATPase, P-type, IC family protein

Via homolog PDB 5mpm UniProt P11607-2 Formula C₂₀H₂₀N₂O₃
Mol. weight 336.39 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
CZA
PDB
5mpm
UniProt (similar protein)
P11607-2
Target protein
VK055_1980

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 336.39 Da
LogP (Crippen) 2.83
H-bond donors 2
H-bond acceptors 4
TPSA 73.40 Ų
Rotatable bonds 1
Aromatic rings 2 / 5
Heavy atoms 25
Fraction sp³ C 0.40
Formula C₂₀H₂₀N₂O₃

Drug-likeness

Descriptor-based ADME screening flags from SMILES. These are not experimental toxicity results.

Permeability proxy High

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 73.4
  • −1 ≤ LogP ≤ 5 2.83
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 336.4
  • LogP ≤ 5 2.83
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 4
Veber's rules Pass
  • Rotatable bonds ≤ 10 1
  • TPSA ≤ 140 Ų 73.4
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CC(=O)C1=C(N2[C@H](C1=O)[C@H]3c4c[nH]c5c4c(ccc5)C[C@H]3C2(C)C)O
InChI 
InChI=1S/C20H20N2O3/c1-9(23)14-18(24)17-16-11-8-21-13-6-4-5-10(15(11)13)7-12(16)20(2,3)22(17)19(14)25/h4-6,8,12,16-17,21,25H,7H2,1-3H3/t12-,16+,17+/m1/s1
InChIKey 
RLOAZVAJNNPPDI-DQYPLSBCSA-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
PF00122' 'PF00690

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_1980.

PDB 5

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

Ligand PDB entry

ChEMBL 5

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)