So once our mRNA is inside the nucleus, a set of proteins known as initiation factors helps our small subians locate the five end of our mRNA. And once it binds, it travels along our mRNA until it locates our star codon. The sequence aug. And once it locates the aug sequence. Our small subunit basically tells its signals a tRNA molecule to go out and find a methionine molecule and it brings our tRNA brings that methionine molecule to our aug. So this is our tRNA molecule. It contains the complementary sequence to our aug.