t-RNA Functions
- It helps in the synthesis of proteins.
- It helps in aminoacylation which is the first step of protein synthesis.
- It transfers the specific amino acid from the amino acid pool to the mRNA to form a polypeptide to make proteins.
- It helps amino acids link with mRNA to form proteins.
- It helps in the recognition of specific amino acid and carry them to the ribosomal unit for translation.
- The ribosome site, where the polypeptide chain grows has three binding sites of tRNA-aminoacyl (A site), peptidyl (P site), and exit (E site).
- It consists of anticodon which decodes the amino acid code for a specific amino acid present in mRNA.
tRNA – the Adapter Molecule
tRNA is also known as transfer RNA is a subtype of RNA, tRNA help in the protein synthesis process. tRNA carries the amino acid to the ribosome, which is the molecular machine that assembles the protein, and ensures that the amino acid is incorporated into the growing protein chain in the correct order. Different types of tRNA present, each with a different sequence and structure allow it to recognize a specific amino acid. Specific amino acids are incorporated in the protein sequence via specific tRNA.
What is RNA?
RNA
Ribonucleic acid (RNA) is a single-stranded, non-hereditary (except-retroviruses) molecule that helps in the synthesis of proteins. The nitrogenous bases present in RNA are A (Adenine), U (Uracil), G (Guanine), and C (Cytosine), in which A pairs with U and G with C. The function of ribonucleic acid is to convert genetic information from genes into amino acid sequences of protein. It is classified into three types- messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA) on the basis of the function and molecular size of the nucleic acids.
Contact Us