title: Cloning and expression of translation elongation factor 2 (EF-2) in zebrafish.
abstract: We have identified a developmentally regulated gene translation elongation factor 2 (EF-2) in zebrafish (GenBank Accession No. AAQ91234). Analysis of DNA sequence of zebrafish EF-2 shows that the 2826 bp cDNA spans an open reading frame from nucleotide 55 to 2631 and encodes a protein of 858 amino acids. It shares an identity of 92, 93, 93, 92, 79 and 80% in amino acid sequence to human, mouse, Chinese hamster, Gallus gullus, C. elegans and Drosophila EF-2, respectively. Zebrafish EF-2 protein has 16 conserved domains, GTP-binding domain is found in the NH2 terminus, and the ADP-ribosylation domain locates at the COOH terminus. Whole mount in situ hybridization on zebrafish embryos shows that the transcripts of EF-2 gene are detected during the early development of zebrafish embryo and constantly change from 5-somite stage to protruding-mouth stage. It expresses strongly throughout envelope at 5-somite stage. Then the stained cells concentrate strongly in the eyes, brain and muscle tissue. From prim-25 stage the stained cells only appear strongly in the lens and the anterior portion of the cerebellum.
authors.affiliation: State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University, Shanghai 200433, People's Republic of China.
authors.forename: Shu-Hong
authors.initials: SH
authors.lastname: Zhang
authors.forename: Ji-Hua
authors.initials: JH
authors.lastname: Yao
authors.forename: Huai-Dong
authors.initials: HD
authors.lastname: Song
authors.forename: Lu
authors.initials: L
authors.lastname: Wang
authors.forename: Jing-Lun
authors.initials: JL
authors.lastname: Xue
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D003001:Cloning, Molecular; D006224:Cricetinae; D018507:Gene Expression Regulation, Developmental; D006801:Humans; D051379:Mice; D008969:Molecular Sequence Data; D020652:Peptide Elongation Factor 2 / Q000096:biosynthesis* / Q000235:genetics*; D014158:Transcription, Genetic; D015027:Zebrafish / Q000196:embryology / Q000235:genetics*; D029961:Zebrafish Proteins / Q000096:biosynthesis* / Q000235:genetics*
chemical_list: D020652:Peptide Elongation Factor 2; D029961:Zebrafish Proteins