How to Find a Stop Codon in a DNA Sequence
Finding a stop codon in a DNA sequence means locating one of the three DNA triplets TAA, TAG, or TGA in the correct orientation and confirming that it appears within a valid protein-coding reading frame. Because DNA is translated from five prime to three prime in groups of three bases, simply searching for these letters is not always enough to determine whether a stop codon ends a real protein-coding region.
Introduction
Proteins are encoded by sequences of nucleotides, and cells read those sequences as **cod