Hesperidin 6-O-alpha-L-rhamnosyl-beta-D-glucosidase explained

Hesperidin 6-O-alpha--rhamnosyl-beta--glucosidase
Ec Number:	3.2.1.168

Hesperidin 6-O-alpha--rhamnosyl-beta--glucosidase is an enzyme with systematic name hesperetin 7-(6-O-alpha--rhamnopyranosyl-beta--glucopyranoside) 6-O-alpha-rhamnopyranosyl-beta-glucohydrolase.^{[1] [2]} This enzyme catalyses the following chemical reaction

hesperidin + H₂O hesperetin + rutinose

The enzyme exhibits high specificity towards 7-O-linked flavonoid beta-rutinosides.

The enzyme is produced by the fungus Acremonium sp. DSM24697. The genera Acremonium and morphologically similar Stilbella have not yet been fully studied on a molecular basis. Under the morphological basis, the fungus Stilbella fimetaria SES201 was reidentified as Acremonium sp. SES201 = DSM24697.

Notes and References

1. Mazzaferro L, Piñuel L, Minig M, Breccia JD . Extracellular monoenzyme deglycosylation system of 7-O-linked flavonoid β-rutinosides and its disaccharide transglycosylation activity from Stilbella fimetaria . Archives of Microbiology . 192 . 5 . 383–93 . May 2010 . 20358178 . 10.1007/s00203-010-0567-7 . 11336/81705 . free .
2. Mazzaferro L, Piñuel L, Minig M, Breccia JD . Erratum to: Extracellular monoenzyme deglycosylation system of 7-O-linked flavonoid β-rutinosides and its disaccharide transglycosylation activity from Stilbella fimetaria . Archives of Microbiology . 2011 . 193 . 6 . 461 . 10.1007/s00203-011-0709-6. free .