We have the initiation stage, we have the elongation stage and the termination stage. In this lecture, we're only going to focus on our initiation stage. So once our precursor mRNA or pre RNA actually undergoes the proper post transcriptional modifications in the nucleus, it basically becomes the mRNA and it leaves the nucleus via the nuclear pores. Now, once it enters a cytoplasm, special types of proteins that are known as initiation factors basically help the mRNA find the small subunit and the small subunit binds to the five end of our mRNA. And once the small subiant binds to our five end, it begins to travel along our mRNA until it finds, until it locates a specific sequence of amino of nucleotides that is known as the start codon. And this sequence is beginning with the five naug and ending with our three n. So basically this is described in the following diagram.