The Kluyveromyces lactis ORF r_klactIV3463 on chromosome IV, hereafter named KlYND1, encodes an endoapyrase that has nucleoside phosphatase activity with a lumenal orientation. The enzyme showed equally high activity towards GDP/UDP and ADP, and also showed activity, although to a lesser extent, towards GTP. No activity was detected with the other triphosphates and all monophosphates. The overexpression of KlYND1 in Klgda1Δ cells of K. lactis, devoid of the encoded GDPase/UDPase activity, suppressed the loss of O-glycosylation and cell wall-related defects described in such mutants, and suggests a partial overlap of function between the two genes, and therefore some redundancy. The overexpression of KlYND1 in wild-type cells enhanced the secretion of the recombinant human serum albumin and glucoamylase employed as reporters. © 2007 Federation of European Microbiological Societies.

The apyrase KlYnd1p of Kluyveromyces lactis affects glycosylation, secretion, and cell wall properties / Uccelletti, Daniela; Anticoli, Simona; Palleschi, Claudio. - In: FEMS YEAST RESEARCH. - ISSN 1567-1356. - 7:5(2007), pp. 731-739. [10.1111/j.1567-1364.2007.00229.x]

The apyrase KlYnd1p of Kluyveromyces lactis affects glycosylation, secretion, and cell wall properties

UCCELLETTI, Daniela;ANTICOLI, SIMONA;PALLESCHI, Claudio
2007

Abstract

The Kluyveromyces lactis ORF r_klactIV3463 on chromosome IV, hereafter named KlYND1, encodes an endoapyrase that has nucleoside phosphatase activity with a lumenal orientation. The enzyme showed equally high activity towards GDP/UDP and ADP, and also showed activity, although to a lesser extent, towards GTP. No activity was detected with the other triphosphates and all monophosphates. The overexpression of KlYND1 in Klgda1Δ cells of K. lactis, devoid of the encoded GDPase/UDPase activity, suppressed the loss of O-glycosylation and cell wall-related defects described in such mutants, and suggests a partial overlap of function between the two genes, and therefore some redundancy. The overexpression of KlYND1 in wild-type cells enhanced the secretion of the recombinant human serum albumin and glucoamylase employed as reporters. © 2007 Federation of European Microbiological Societies.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/365427
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