title: Isolation of the ATP synthase subunit 6 and sequence of the mitochondrial ATP6 gene of the yeast Candida parapsilosis.
abstract: The mitochondrially translated product called subunit 6 was extracted from the yeast Candida parapsilosis mitochondria using an organic solvent mixture and purified by reverse-phase HPLC. The partial N-terminal sequence of subunit 6 reveals a post-translational cleavage site as in Saccharomyces cerevisiae. The structural mitochondrial gene ATP6 was isolated form a mitochondrial DNA library using the oligonucleotide probe procedure. The gene and the surrounding regions were cloned into M13tg130 and M13tg131 phage vectors. The insert contained an open reading frame 738-bp encoding a 246-amino-acid polypeptide. Mature subunit 6 contains 243 amino acid residues and the predicted molecular mass is 26,511 Da. The subunit shows 52% similarity with ATP synthase subunit 6 of the yeast S. cerevisiae. Comparison between protein and DNA sequences shows that the CUN codon family codes for a leucine in C. parapsilosis mitochondria.
authors.affiliation: Institut de Biochimie Cellulaire et Neurochimie du Centre National de la Recherche Scientifique, Université de Bordeaux II, France.
authors.forename: E
authors.initials: E
authors.lastname: Guélin
authors.forename: M
authors.initials: M
authors.lastname: Guérin
authors.forename: J
authors.initials: J
authors.lastname: Velours
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D002175:Candida / Q000201:enzymology* / Q000235:genetics; D002851:Chromatography, High Pressure Liquid; D003062:Codon / Q000235:genetics; D004271:DNA, Fungal / Q000235:genetics* / Q000302:isolation & purification; D004272:DNA, Mitochondrial / Q000235:genetics* / Q000302:isolation & purification; D015723:Gene Library; D005800:Genes, Fungal; D046911:Macromolecular Substances; D008969:Molecular Sequence Data; D015345:Oligonucleotide Probes; D014176:Protein Biosynthesis; D006180:Proton-Translocating ATPases / Q000235:genetics* / Q000302:isolation & purification / Q000378:metabolism; D015183:Restriction Mapping; D012441:Saccharomyces cerevisiae / Q000201:enzymology; D012689:Sequence Homology, Nucleic Acid
chemical_list: D003062:Codon; D004271:DNA, Fungal; D004272:DNA, Mitochondrial; D046911:Macromolecular Substances; D015345:Oligonucleotide Probes; D006180:Proton-Translocating ATPases