期刊
FEBS LETTERS
卷 581, 期 28, 页码 5413-5417出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.febslet.2007.10.034
关键词
aquaporin; gas-conductivity; ammonia; stopped-flow spectrometry
Functional analysis of heterologously expressed TaTIP2; 2 by means of stopped-flow spectrometric studies provide evidence for water and ammonia conductivity. A series of experiments under increasing pH indicate that the gaseous NH3, rather than the ammonium ion NH4+ was transported. Results from inhibitor studies strongly suggest that NH3 is not transported in. le with water, but through a separate pathway, which could be supplied by the 5th central pore in a tetramer conformation. (c) 2007 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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