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CGMP
cGMP
(or 3'-5'-cyclic
GMP[?]
) is a
second messenger
molecule
, used for
intracellular
signal transduction
. It is made from
GTP[?]
by
guanylate cyclase[?]
. Its main purpose is the regulation of
protein kinases
; it is also use to regulate the passage of
cations
(for example,
Ca
2+
)through
ion channels
, a mechanism used in
retina
cells by
mammals
.
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