Apigenin 4'-O-methyltransferase
| apigenin 4'-O-methyltransferase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 2.1.1.75 | ||||||||
| CAS number | Template:CAS | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / EGO | ||||||||
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In enzymology, an apigenin 4'-O-methyltransferase (EC 2.1.1.75) is an enzyme that catalyzes the chemical reaction
- S-adenosyl-L-methionine + 5,7,4'-trihydroxyflavone
S-adenosyl-L-homocysteine + 4'-methoxy-5,7-dihydroxyflavone
Thus, the two substrates of this enzyme are S-adenosyl methionine and 5,7,4'-trihydroxyflavone (apigenin), whereas its two products are S-adenosylhomocysteine and 4'-methoxy-5,7-dihydroxyflavone (acacetin).
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:5,7,4'-trihydroxyflavone 4'-O-methyltransferase. Other names in common use include flavonoid O-methyltransferase, and flavonoid methyltransferase. This enzyme participates in flavonoid biosynthesis.
References
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