title: Beta turns in early evolution: chirality, genetic code, and biosynthetic pathways.
authors.affiliation: Dana Farber Cancer Institute, Harvard School of Public Health, Boston, Massachusetts 02115.
authors.forename: J
authors.initials: J
authors.lastname: Jurka
authors.forename: T F
authors.initials: TF
authors.lastname: Smith
mesh_terms: D000596:Amino Acids; D005075:Biological Evolution; D005815:Genetic Code; D008968:Molecular Conformation; D014176:Protein Biosynthesis; D011487:Protein Conformation; D011506:Proteins / Q000235:genetics*
chemical_list: D000596:Amino Acids; D011506:Proteins