Ligand profile

2MQ

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

Bound to: KP13_02055 — Queuine tRNA-ribosyltransferase

Via homolog PDB 3gc5 UniProt P28720 Formula C₁₂H₁₅N₇O
Mol. weight 273.30 Da
Permeability Check
PAINS Clean

Identifiers

Database identifiers and provenance.

Ligand ID
2MQ
PDB
3gc5
UniProt (similar protein)
P28720
Target protein
KP13_02055

Structure

2D representation rendered from SMILES.

Physicochemical properties

Computed with RDKit from SMILES.

Molecular weight 273.30 Da
LogP (Crippen) -0.08
H-bond donors 5
H-bond acceptors 6
TPSA 138.50 Ų
Rotatable bonds 3
Aromatic rings 3 / 3
Heavy atoms 20
Fraction sp³ C 0.25
Formula C₁₂H₁₅N₇O

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 138.5
  • −1 ≤ LogP ≤ 5 -0.08
Lipinski's Rule of Five Pass 0 violations
  • MW ≤ 500 Da 273.3
  • LogP ≤ 5 -0.08
  • H-bond donors ≤ 5 5
  • H-bond acceptors ≤ 10 6
Veber's rules Pass
  • Rotatable bonds ≤ 10 3
  • TPSA ≤ 140 Ų 138.5
PAINS Clean

No PAINS structural alerts detected.

Chemical representations

Canonical representations for cheminformatics workflows.

SMILES 
CNc1[nH]c2c(n1)cc3c(c2CCN)N=C(NC3=O)N
InChI 
InChI=1S/C12H15N7O/c1-15-12-16-7-4-6-8(17-11(14)19-10(6)20)5(2-3-13)9(7)18-12/h4H,2-3,13H2,1H3,(H2,15,16,18)(H3,14,17,19,20)
InChIKey 
GERXMHCMTFTAGY-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
PF01702

External resources

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

Other ligands for this protein

Quick navigation to other ligands bound to KP13_02055.

PDB 60

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)