Cloning and expression of two genes coding for sodium pumps in the salt-tolerant yeast Debaryomyces hansenii

被引：70

作者：

Almagro, A

Prista, C

Benito, B

Loureiro-Dias, MC

Ramos, J ^{[1
]}

机构：

[1] Univ Cordoba, Dept Microbiol, Escuela Tecn Super Ingn Agron, E-14071 Cordoba, Spain

[2] Inst Super Agron, Dept Bot & Engn Biol, P-1349017 Lisbon, Portugal

[3] Univ Politecn Madrid, Escuela Tecn Ingn Agron, Dept Biotecnol, E-28040 Madrid, Spain

来源：

JOURNAL OF BACTERIOLOGY | 2001年 / 183卷 / 10期

关键词：

D O I：

10.1128/JB.183.10.3251-3255.2001

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Two genes encoding Na+-ATPases from Debaryomyces hansenii were cloned and sequenced. The genes, designated ENA1 from D. hansenii (DhENA1) and DhENA2, exhibited high homology with the corresponding genes from Schwanniomyces occidentalis. DhENA1 was expressed in the presence of high Na+ concentrations, while the expression of DhENA2 also required high pH. A mutant of Saccharomyces cerevisiae lacking the Na+ efflux systems and sensitive to Na+, when transformed with DhENA1 or DhENA2, recovered Na+ tolerance and also the ability to extrude Na+.

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页码：3251 / 3255

页数：5

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