Ligand profile

1CY

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

Bound to: VK055_0984 — hypothetical protein

Via homolog PDB 6hnc UniProt O76290 Formula C₁₁H₁₄ClN₅
Mol. weight 251.72 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
1CY
PDB
6hnc
UniProt (similar protein)
O76290
Target protein
VK055_0984

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 251.72 Da
LogP (Crippen) 1.53
H-bond donors 2
H-bond acceptors 5
TPSA 80.00 Ų
Rotatable bonds 1
Aromatic rings 1 / 2
Heavy atoms 17
Fraction sp³ C 0.27
Formula C₁₁H₁₄ClN₅

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 80.0
  • −1 ≤ LogP ≤ 5 1.53
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 251.7
  • LogP ≤ 5 1.53
  • H-bond donors ≤ 5 2
  • H-bond acceptors ≤ 10 5
Veber's rules Pass
  • Rotatable bonds ≤ 10 1
  • TPSA ≤ 140 Ų 80.0
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CC1(N=C(N=C(N1c2ccc(cc2)Cl)N)N)C
InChI 
InChI=1S/C11H14ClN5/c1-11(2)16-9(13)15-10(14)17(11)8-5-3-7(12)4-6-8/h3-6H,1-2H3,(H4,13,14,15,16)
InChIKey 
QMNFFXRFOJIOKZ-UHFFFAOYSA-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
PF13561

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_0984.

PDB 92

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

Ligand PDB entry

ChEMBL 35

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)