The role of AUG as the start codon for protein translation

The start codon on any mRNA strand is always


‘AUG’ which codes for the amino acid methionine. This start codon signals the ribosome to begin translating the sequence of nucleotides on the mRNA into a protein chain and indicates the reading frame of the mRNA. Once the start codon is recognized by the ribosome, the next codon is read and the appropriate amino acid is added to the growing protein chain. The start codon is typically located at the beginning of the gene sequence, although in some cases it may be located further downstream. It is important for the start codon to be present and correctly positioned, as any mutations or deletions in this region can disrupt the reading frame and result in the production of a non-functional protein.

More Answers:

Chargaff’s Rule: A Fundamental Principle in Genetics and its Significance in DNA Replication and Protein Synthesis.
Codons and Anti-Codons in mRNA and tRNA for Amino Acid Synthesis.
The Importance of Multiple Codons for the Same Amino Acid in Protein Synthesis

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