Biology:5-hydroxyfuranocoumarin 5-O-methyltransferase

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Short description: Class of enzymes
5-hydroxyfuranocoumarin 5-O-methyltransferase
Identifiers
EC number2.1.1.69
CAS number101637-31-4&title= 67339-12-2, 101637-31-4
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

5-hydroxyfuranocoumarin 5-O-methyltransferase (EC 2.1.1.69, furanocoumarin 5-methyltransferase, furanocoumarin 5-O-methyltransferase, bergaptol 5-O-methyltransferase, bergaptol O-methyltransferase, bergaptol methyltransferase, S-adenosyl-L-methionine:bergaptol O-methyltransferase, BMT, S-adenosyl-L-methionine:5-hydroxyfuranocoumarin 5.1-O-methyltransferase) is an enzyme with systematic name S-adenosyl-L-methionine:5-hydroxyfurocoumarin 5-O-methyltransferase.[1][2][3][4] This enzyme catalyses the following chemical reaction

(1) S-adenosyl-L-methionine + a 5-hydroxyfurocoumarin [math]\displaystyle{ \rightleftharpoons }[/math] S-adenosyl-L-homocysteine + a 5-methoxyfurocoumarin (general reaction)
(2) S-adenosyl-L-methionine + bergaptol [math]\displaystyle{ \rightleftharpoons }[/math] S-adenosyl-L-homocysteine + bergapten

The enzyme methylates the 5-hydroxy group of some hydroxy- and methylcoumarins, such as 5-hydroxyxanthotoxin.

References

  1. "O-methyltransferases of furanocoumarin biosynthesis". Archives of Biochemistry and Biophysics 188 (2): 272–81. June 1978. doi:10.1016/s0003-9861(78)80009-5. PMID 28084. 
  2. "Separation of the S-adenosylmethionine: 5- and 8-hydroxyfuranocoumarin O-methyltransferases of Ruta graveolens L. by general ligand affinity chromatography". Zeitschrift für Naturforschung C 34C (5–6): 387–91. 1979. doi:10.1515/znc-1979-5-611. PMID 156999. 
  3. Hauffe, K.D.; Hahlbrock, K.; Scheel, D. (1986). "Elicitor-stimulated furanocoumarin biosynthesis in cultured parsley cells - S-adenosyl-L-methionine-bergaptol and S-adenosyl-L-methionine-xanthotoxol O-methyltransferases". Zeitschrift für Naturforschung C 41: 228–239. doi:10.1515/znc-1986-1-234. 
  4. "Furanocoumarin biosynthesis in Ammi majus L. Cloning of bergaptol O-methyltransferase". European Journal of Biochemistry 271 (5): 932–40. March 2004. doi:10.1111/j.1432-1033.2004.03995.x. PMID 15009205. 

External links