title: Codon recognition mechanisms in plant chloroplasts.
abstract: In chloroplasts, all 61 sense codons are found in chloroplast (cp) DNA sequences coding for proteins. However among the sequenced cp tRNAs or tRNA genes, tRNAs with anticodons complementary to codons CUU/C (Leu), CCU/C (Pro), GCU/C (Ala) and CGC/A/G (Arg) [or CGC/A (Arg) in Marchantia] have not been found. In this paper we show that cp tRNA(Ala)(U*GC) cp tRNA(Pro)(U*GG) and cp tRNA(Arg)(ICG) are able to decode the corresponding four-codon family. In the case of leucine codons CUU/C, we show that 'U:U and U:C wobble' mechanisms can operate to allow the reading of these codons by cp tRNA(Leu)(UAm7G).
authors.affiliation: Institut de Biologie Moléculaire des Plantes, Université Louis Pasteur, Strasbourg, France.
authors.forename: H
authors.initials: H
authors.lastname: Pfitzinger
authors.forename: J H
authors.initials: JH
authors.lastname: Weil
authors.forename: D T
authors.initials: DT
authors.lastname: Pillay
authors.forename: P
authors.initials: P
authors.lastname: Guillemaut
mesh_terms: D000595:Amino Acid Sequence; D000926:Anticodon / Q000235:genetics; D001483:Base Sequence; D002736:Chloroplasts / Q000378:metabolism; D003062:Codon / Q000235:genetics*; D008969:Molecular Sequence Data; D010944:Plants / Q000235:genetics*; D014176:Protein Biosynthesis; D012345:RNA, Transfer, Amino Acid-Specific / Q000235:genetics
chemical_list: D000926:Anticodon; D003062:Codon; D012345:RNA, Transfer, Amino Acid-Specific