title: A GTP requirement for binding initiator tRNA to ribosomes.
mesh_terms: D004926:Escherichia coli; D006150:Guanine Nucleotides / Q000494:pharmacology*; D008274:Magnesium; D011485:Protein Binding; D012343:RNA, Transfer / Q000378:metabolism*; D011868:Radioisotopes; D012270:Ribosomes / Q000378:metabolism*; D012643:Selenium
chemical_list: D006150:Guanine Nucleotides; D011868:Radioisotopes; D012343:RNA, Transfer; D012643:Selenium; D008274:Magnesium