tRNA is also known as the transfer RNA which is the information adapter molecule. It is very vital component as it is the direct interface in between DNA and amino- acid sequence of protein. Due to this interface it can decode the information present in DNA. There are 20 different types of tRNA molecules, all of them are between 75-95 nt.
All the tRNA's from all of the organisms have similar structure. example: a human tRNA can perform the same function in the yeast cells as well.
The tRNA have 4 arms and 3 loops which are the acceptor, D, T pseudouridine C and anticodon arms, and D, T pseudouridine C and anticodon loops.
Some of the tRNA may even have an extra loop. tRNA are synthesized in two main parts. tRNA gene transcribes body of the tRNA. All tRNA molecules have the same acceptor stem. the acceptor stem is added after the body is synthesized. The acceptor stem is replaced often during the life cycle of the tRNA molecule.
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