发信人: yanan (花自飘零水自流), 信区: Biology
标 题: Dr. Paul Greengard
发信站: The unknown SPACE (Mon Oct 9 14:58:39 2000), 站内信件

Paul Greengard, Laboratory of Molecular and Cellular Science,
Rockefeller University, New York, is rewarded for his discovery
of how dopamine and a number of other transmitters exert their
action in the nervous system. The transmitter first acts on a
receptor on the cell surface. This will trigger a cascade of
reactions that will affect certain "key proteins" that in turn
regulate a variety of functions in the nerve cell. The proteins
become modified as phosphate groups are added (phosphorylation)
or removed (dephosphorylation), which causes a change in the
shape and function of the protein. Through this mechanism the
transmitters can carry their message from one nerve cell to
another.
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紫霞问：“是不是一到夏天，满山就会开满紫色的木逍花？”

※ 来源:．The unknown SPACE bbs.mit.edu．[FROM: 144.92.244.71]