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wybutosine

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EntityQ1310878· pop 7· linked from 82 articles

wybutosine

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In biochemistry, wybutosine (yW) is a heavily modified nucleoside of phenylalanine transfer RNA that stabilizes interactions between the codons and anti-codons during protein synthesis. Ensuring accurate synthesis of protein is essential in maintaining health as defects in tRNA modifications are able to cause disease. In eukaryotic organisms, it is found only in position 37, 3'-adjacent to the anticodon, of phenylalanine tRNA. Wybutosine enables correct translation through the stabilization of the codon-anticodon base pairing during the decoding process.

Chemical data

Formula
C21H28N6O9
Molecular weight
508.5 g/mol
IUPAC name
methyl (2S)-4-[3-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-4,6-dimethyl-9-oxoimidazo[1,2-a]purin-7-yl]-2-(methoxycarbonylamino)butanoate
SMILES
CC1=C(N2C(=O)C3=C(N(C2=N1)C)N(C=N3)[C@H]4[C@@H]([C@@H]([C@H](O4)CO)O)O)CC[C@@H](C(=O)OC)NC(=O)OC
InChIKey
QAOHCFGKCWTBGC-QHOAOGIMSA-N
XLogP
-0.5
Polar surface area
191 Ų
H-bond donors
4
H-bond acceptors
12
Formal charge
0

via PubChem

Wikidata facts

Subclass of
nucleoside
Mass
508.1917764759998
Show 3 more facts
isomeric SMILES
CC1=C(N2C(=O)C3=C(N(C2=N1)C)N(C=N3)[C@H]4[C@@H]([C@@H]([C@H](O4)CO)O)O)CC[C@@H](C(=O)OC)NC(=O)OC
chemical formula
C₂₁H₂₈N₆O₉
canonical SMILES
COC(=O)NC(CCc1c(C)nc2n(C)c3c(ncn3C3OC(CO)C(O)C3O)c(=O)n12)C(=O)OC
Sources (2)

via Wikidata · CC0

~9 min read

Encyclopedic overview

10 sections
Contents
  • Biosynthesis
  • Variation
  • Verification by chemical synthesis
  • Function
  • Structural effect
  • Avoidance of frameshifting
  • Alternatives
  • Selective allowance of frameshifting?
  • Downstream effects
  • References

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Excerpted from Wikipedia’s “wybutosine” article, available under the CC BY-SA 4.0 licence.

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