title: Isolation of a protein fraction from rat liver ribosomes initiating polyphenylalanine synthesis at low Mg 2+  ions-concentrations.
mesh_terms: D000818:Animals; D002712:Chlorides; D005459:Fluorides / Q000494:pharmacology; D066298:In Vitro Techniques; D008099:Liver; D008274:Magnesium / Q000494:pharmacology; D010649:Phenylalanine / Q000096:biosynthesis*; D011108:Polymers; D011506:Proteins / Q000302:isolation & purification / Q000494:pharmacology*; D051381:Rats; D012270:Ribosomes / Q000032:analysis / Q000378:metabolism*; D012964:Sodium
chemical_list: D002712:Chlorides; D011108:Polymers; D011506:Proteins; D010649:Phenylalanine; D012964:Sodium; D008274:Magnesium; D005459:Fluorides