RNA mirrors history of life

March 10th, 2008 - 6:19 pm ICT by admin  

Washington, Mar 10 (IANS) A certain kind of RNA is like a great historian - it preserves some of the earliest and most profound events of our evolutionary past in its unique structure. The intermediaries between genes and proteins, RNAs, or ribonucleic acids, are “ancient” molecules and probably one of the most fundamental building blocks of life. They also link genes and proteins most directly, Sciencedaily reported.

A special kind of RNA - the transfer RNA, or tRNAs - downloads genes into chains of specific amino acids that make up proteins, with the help of a coded segment giving precise instructions for the process.

The notion that tRNAs lie at the core of protein building implies that it has been around for a long time, said Gustavo Caetano-Anoll

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