Question

The enzyme thiouridylase converts certain tRNA uridine residues to 2-thiouridine. Draw the structure of this modified nucleotide.

Short answer

The structure of 2-thiouridine is:

Step-by-step solution

Definition of Concept

A form of RNA molecule called transfer ribonucleic acid (tRNA) aids in the translation of a messenger RNA (mRNA) sequence into a protein. Translation, which creates a protein from an mRNA molecule, uses tRNAs at particular locations on the ribosome.

Structure of the 2-thiouridine 

The thiouridylase is an enzyme that is responsible for the conversion of ruridine attached to the transfer RNA to 2-thiouridine.

The structure of 2-thiouridine is given below: