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  • Title: Cloning and sequence analysis of the invertase gene INV 1 from the yeast Pichia anomala.
    Author: Pérez JA, Rodríguez J, Rodríguez L, Ruiz T.
    Journal: Curr Genet; 1996 Feb; 29(3):234-40. PubMed ID: 8595669.
    Abstract:
    A genomic library from the yeast Pichia anomala has been constructed and employed to clone the gene encoding the sucrose-hydrolysing enzyme invertase by complementation of a sucrose non-fermenting mutant of Saccharomyces cerevisiae. The cloned gene, INV1, was sequenced and found to encode a polypeptide of 550 amino acids which contained a 22 amino-acid signal sequence and ten potential glycosylation sites. The amino-acid sequence shows significant identity with other yeast invertases and also with Kluyveromyces marxianus inulinase, a yeast beta-fructofuranosidase which has a different substrate specificity. The nucleotide sequences of the 5' and 3' non-coding regions were found to contain several consensus motifs probably involved in the initiation and termination of gene transcription.
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