mRNA Codons - Genetic Code
| First Letter | Second Letter | Third Letter | |||
|---|---|---|---|---|---|
| U | C | A | G | ||
| U | phenylalanine F | serine S | tyrosine Y | cysteine C | U |
| phenylalanine F | serine S | tyrosine Y | cysteine C | C | |
| leucine L | serine S | stop | stop | A | |
| leucine L | serine S | stop | tryptophan W | G | |
| C | leucine L | proline P | histidine H | arginine R | U |
| leucine L | proline P | histidine H | arginine R | C | |
| leucine L | proline P | glutamine Q | arginine R | A | |
| leucine L | proline P | glutamine Q | arginine R | G | |
| A | isoleucine I | threonine T | asparagine N | serine S | U |
| isoleucine I | threonine T | asparagine N | serine S | C | |
| isoleucine I | threonine T | lysine K | arginine R | A | |
| methionine (start) | threonine T | lysine K | arginine R | G | |
| G | valine V | alanine A | aspartate D | glycine G | U |
| valine V | alanine A | aspartate D | glycine G | C | |
| valine V | alanine A | glutamate E | glycine G | A | |
| valine V | alanine A | glutamate E | glycine G | G | |