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Toxic compound opens potentially important cell gates

ecting that the remainder of the second protein was involved in the formation of a calcium ion channel, Scharenberg and Bessman asked Reinhold Penner of the University of Hawaii at Honolulu to use a special "patch-clamp" technique to test whether LTRPC2 created a channel and whether that channel could be regulated with ADP-ribose. He found that the answer to both questions was yes.

"In fact, Reinhold found that the mechanism was very specific; other compounds can't open the channel," Bessman says. "This effort, in which three labs with different expertises worked toward a common goal, was a paradigm of scientific cooperation," Bessman concludes. "It's a bit like the fusion of the proteins we found; the whole was greater than the sum of its parts."


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Contact: Michael Purdy
mcp@jhu.edu
410-516-7160
Johns Hopkins University
5-Jun-2001


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