The initiator tRNA molecule, carrying the methionine amino acid that will serve as the first amino acid of the polypeptide chain, is bound to the P site on the ribosome.

To complete the initiation phase, the tRNA molecule that carries methionine recognizes the start codon and binds to it.

The study investigated how methionine influences DNA methylation, a biochemical process involving addition of a methyl radical to the DNA molecule.

Jingjing Meng, Lishuan Wang, Jingyi Wang, Xiaowen Zhao, Jinkui Cheng, Wenxiang Yu, Dan Jin, Qing Li, Zhizhong Gong, METHIONINE ADENOSYLTRANSFERASE4 Mediates DNA and ...