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A Functional HAK/KUP/KT-like Potassium Transporter Encoded by Chlorella Viruses.

Greiner, Timo and Ramos, José and Alvarez, Maria C. and Gurnon, James R. and Kang, Ming and Van Etten, James L. and Moroni, Anna and Thiel, Gerhard (2011):
A Functional HAK/KUP/KT-like Potassium Transporter Encoded by Chlorella Viruses.
In: The Plant journal : for cell and molecular biology, pp. 977-986, 68, (6), ISSN 1365-313X,
[Article]

Abstract

Chlorella viruses are a source of interesting membrane transport proteins. Here we examine a putative K(+) transporter encoded by virus FR483 and a few related chlorella viruses. The protein shares sequence and structural features with HAK/KUP/KT-like K(+) transporters from plants, bacteria and fungi. Yeast complementation assays and Rb(+) -uptake experiments show that the viral protein, termed HAKCV for High Affinity K(+) transporter Chlorella Virus, is functional with transport characteristics comparable to known K(+) transporters. Expression studies reveal that the protein is expressed as an early gene during viral replication and proteomics data indicate it is not packaged in the virion. The function of HAKCV is unclear but the data negate the hypothesis that the transporter substitutes for the role of viral-encoded K(+) channels during virus infection.

Item Type: Article
Erschienen: 2011
Creators: Greiner, Timo and Ramos, José and Alvarez, Maria C. and Gurnon, James R. and Kang, Ming and Van Etten, James L. and Moroni, Anna and Thiel, Gerhard
Title: A Functional HAK/KUP/KT-like Potassium Transporter Encoded by Chlorella Viruses.
Language: English
Abstract:

Chlorella viruses are a source of interesting membrane transport proteins. Here we examine a putative K(+) transporter encoded by virus FR483 and a few related chlorella viruses. The protein shares sequence and structural features with HAK/KUP/KT-like K(+) transporters from plants, bacteria and fungi. Yeast complementation assays and Rb(+) -uptake experiments show that the viral protein, termed HAKCV for High Affinity K(+) transporter Chlorella Virus, is functional with transport characteristics comparable to known K(+) transporters. Expression studies reveal that the protein is expressed as an early gene during viral replication and proteomics data indicate it is not packaged in the virion. The function of HAKCV is unclear but the data negate the hypothesis that the transporter substitutes for the role of viral-encoded K(+) channels during virus infection.

Journal or Publication Title: The Plant journal : for cell and molecular biology
Volume: 68
Number: 6
Divisions: 10 Department of Biology > Plant Membrane Biophysics
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10 Department of Biology
Date Deposited: 31 Aug 2011 06:16
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