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Magnesium protoporphyrin IX methyltransferase
In
enzymology
, a
magnesium protoporphyrin IX
methyltransferase
is an
enzyme
that
catalyzes
the
chemical reaction
The two
substrates
of this enzyme are
S-adenosyl methionine
and
magnesium
protoporphyrin
IX
; its two
products
are
S-adenosylhomocysteine
and
magnesium protoporphyrin IX 13-methyl ester
.
This enzyme
belongs to
the
family
of
transferases
,
specifically
those transferring one-carbon group
methyltransferases
. The
systematic name
of this enzyme
class
is
S-adenosyl-L-methionine:magnesium-protoporphyrin-IX
O-methyltransferase
. This enzyme is part of the
biosynthetic pathway
to
chlorophylls
.