Queuine

Chembox new
ImageFile=Queuine.svg
ImageSize=
IUPACName=
OtherNames=
Section1= Chembox Identifiers
CASNo=72496-59-4
PubChem=1063
SMILES=C1=CC(C(C1NCC2=C3C(=NC(=NC3=O)N)N=C2)O)O
MeSHName=Queuine
Section2= Chembox Properties
Formula=C₁₂H₁₃N₅O₃
MolarMass=275.264 g/mol
Appearance=
Density=
MeltingPt=
BoilingPt=
Solubility=
Section3= Chembox Hazards
MainHazards=
FlashPt=
Autoignition=

Queuine (Q) ("7-(((4,5-cis-dihydroxy-2-cyclopenten-1-yl)amino)methyl)- 7-deazaguanosine") is a hypermodified base found in the first (or wobble) position of the anticodon of tRNAs specific for Asn, Asp, His, and Tyr, in most archaea and bacteria. The nucleoside of queuine is queuosine.