1. A step by step instruction guide
The Codon Chart
A step by step instruction guide

2. Codon Chart

3. How to read a Codon Chart
Here is the step by step process of how to read a codon chart.
Step 1:
Know your mRNA sequence.
Ex: AUGGAGCCUACUGAC
* I like to break my sequence into groups of 3’s so I can easily see my codons.

4. Using your mRNA codons determine which base is 1st, 2nd and 3rd.
Step 2:
Using your mRNA codons determine which base is 1st, 2nd and 3rd.
A1U2G3GAGCCUACUGAC
* I like to write the number under the base, just in case.

5. Step 3:
Find the row that belongs to the 1st base in your codon. Ex: AUG, where A is 1st 1

6. Find the column for the 2nd base letter. ex: AUG, where U is 2nd.
Step 4:
Find the column for the 2nd base letter.
ex: AUG, where U is 2nd.
The corresponding overlap is where you will find the Amino Acid. 2 1

7. Step 5:
Find the small row that corresponds to your 3rd base letter. Ex: AUG, where G is the 3rd base letter.
In this case AUG codes for the Start or the Methionine Amino Acid. 2
The corresponding overlap is where you will find the Amino Acid for codon AUG. 1 3