Article
Interactions between plasma membrane aquaporins modulate their water channel activity.
The Plant cell - 1 Jan 2004
Fetter Karolina, Van Wilder Valérie, Moshelion Menachem, Chaumont François
Abstract excerpt
Plant plasma membrane intrinsic proteins (PIPs) cluster in two evolutionary subgroups, PIP1 and PIP2, with different aquaporin activities when expressed in Xenopus oocytes. Maize ZmPIP1;1 and ZmPIP1;2 do not increase the osmotic water permeability coefficient (Pf), whereas ZmPIP2;1, ZmPIP2;4, and ZmPIP2;5 do. Here, we show that coexpression of the nonfunctional ZmPIP1;2 and the functional ZmPIP2;1, ZmPIP2;4, or...
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