title: Cloning, nucleotide sequence, and expression of tef-1, the gene encoding translation elongation factor 1 alpha (EF-1 alpha) of Neurospora crassa.
abstract: The tef-1 gene encoding translation elongation factor 1 alpha was cloned from the ascomycete fungus Neurospora crassa. The sequences of genomic DNA and cDNA clones showed that the tef-1 gene contained one ORF of 1380 bp length that is interrupted by three short introns. The deduced polypeptide contained 460 amino acid residues, and the sequence had a high similarity with those of EF-1 alpha polypeptides from other species. The level of tef-1 mRNA was low in conidia but high in growing cells. When mycelia were transferred to poor nutrient media, the level of tef-1 gene mRNA decreased remarkably. The pattern of tef-1 expression was similar to the expression of genes for ribosomal proteins. The tef-1 gene was mapped between arg-3 and leu-4 loci on linkage group I by restriction fragment length polymorphism mapping. Southern blot analysis showed that Neurospora genomic DNA contained only one copy of the tef-1 gene in a genome.
authors.affiliation: Department of Regulation Biology, Faculty of Science, Saitama University, Urawa, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Ichi-ishi
authors.forename: H
authors.initials: H
authors.lastname: Inoue
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D002874:Chromosome Mapping; D003001:Cloning, Molecular; D015966:Gene Expression Regulation, Fungal; D005800:Genes, Fungal; D008969:Molecular Sequence Data; D009492:Neurospora crassa / Q000235:genetics*; D020648:Peptide Elongation Factor 1; D010445:Peptide Elongation Factors / Q000737:chemistry* / Q000235:genetics*; D014176:Protein Biosynthesis; D017422:Sequence Analysis, DNA; D017386:Sequence Homology, Amino Acid
chemical_list: D020648:Peptide Elongation Factor 1; D010445:Peptide Elongation Factors