Identification of a new antizyme mRNA +1 frameshifting stimulatory pseudoknot in a subset of diverse invertebrates and its apparent absence in intermediate species.
The expression of eukaryotic antizyme genes requires +1 translational frameshifting. The frameshift in decoding most vertebrate antizyme mRNAs is stimulated by an RNA pseudoknot 3' of the frameshift site. Although the frameshifting event itself is conserved in a wide variety of organisms from yeast to mammals, until recently no corresponding 3' RNA pseudoknot was known in invertebrate antizyme mRNAs. A pseudoknot, different in structure and origin from its vertebrate counterparts, is now shown to be encoded by the antizyme genes of distantly related invertebrates. Identification of the 3' frameshifting stimulator in intermediate species or other invertebrates remains unresolved.
Ivanov
Ivaylo P
IP
Department of Human Genetics, University of Utah, 15N 2030E Rm 7410, Salt Lake City, UT 84112-5330, USA.
Anderson
Christine B
CB
Gesteland
Raymond F
RF
Atkins
John F
JF
D000818:Animals; D001483:Base Sequence; D002460:Cell Line; D016368:Frameshift Mutation; D006801:Humans; D007448:Invertebrates / Q000201:enzymology*; D008969:Molecular Sequence Data; D016297:Mutagenesis, Site-Directed; D009690:Nucleic Acid Conformation; D010802:Phylogeny; D011506:Proteins / Q000737:chemistry / Q000235:genetics*; D012333:RNA, Messenger / Q000032:analysis* / Q000235:genetics; D012689:Sequence Homology, Nucleic Acid
D011506:Proteins; D012333:RNA, Messenger; C031017:ornithine decarboxylase antizyme