Inositol 4-methyltransferase

In enzymology, an inositol 4-methyltransferase (EC 2.1.1.129) is an enzyme that catalyzes the chemical reaction

S-adenosyl-L-methionine + myo-inositol S-adenosyl-L-homocysteine + 1D-4-O-methyl-myo-inositol
inositol 4-methyltransferase
Identifiers
EC no.2.1.1.129
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
Search
PMCarticles
PubMedarticles
NCBIproteins

Thus, the two substrates of this enzyme are S-adenosyl methionine and myo-inositol, whereas its two products are S-adenosylhomocysteine and 1D-4-O-methyl-myo-inositol.

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:1D-myo-inositol 4-methyltransferase. Other names in common use include myo-inositol 4-O-methyltransferase, S-adenosyl-L-methionine:myo-inositol 4-O-methyltransferase, and myo-inositol 6-O-methyltransferase.

References

    • Vernon DM, Bohnert HJ (1992). "A novel methyl transferase induced by osmotic stress in the facultative halophyte Mesembryanthemum crystallinum". EMBO J. 11 (6): 2077–85. PMC 556674. PMID 1600940.
    • Wanek W; Richter A (1995). "Purification and characterization of myo-inositol 6-O-methyltransferase from Vigna umbellata Ohwi et Ohashi". Planta. 197: 427–434. doi:10.1007/bf00196663.


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