Ligand profile

TMA

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

Bound to: VK055_4955 — substrate binding domain of ABC-type glycine betaine transport system family protein

Via homolog PDB 1sw4 UniProt O29280 Formula C₄H₁₂N⁺
Mol. weight 74.15 Da
Permeability High
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
TMA
PDB
1sw4
UniProt (similar protein)
O29280
Target protein
VK055_4955

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 74.15 Da
LogP (Crippen) 0.32
H-bond donors 0
H-bond acceptors 0
TPSA 0.00 Ų
Rotatable bonds 0
Aromatic rings 0 / 0
Heavy atoms 5
Fraction sp³ C 1.00
Formula C₄H₁₂N⁺

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 0.0
  • −1 ≤ LogP ≤ 5 0.32
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 74.1
  • LogP ≤ 5 0.32
  • H-bond donors ≤ 5 0
  • H-bond acceptors ≤ 10 0
Veber's rules Pass
  • Rotatable bonds ≤ 10 0
  • TPSA ≤ 140 Ų 0.0
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
C[N+](C)(C)C
InChI 
InChI=1S/C4H12N/c1-5(2,3)4/h1-4H3/q+1
InChIKey 
QEMXHQIAXOOASZ-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
PF04069

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_4955.

PDB 9

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

Ligand PDB entry

ZINC 26

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

Compound Similarity (Tanimoto)