[Metabolism of Helix pomatia polygalacturonase].
The reaction pattern of the polygalacturonase from Helix pomatia juice has been studied. Hydrolysis of pectic acid occurs in a random manner. Oligogalacturonic acids are hydrolyzed in a sequential process, starting from the non-reducing end. This behavior is different from that of other endopolygalacturonases, which split these latter substrates both randomly and in a stepwise way from the reducing end.
D000818:Animals; D005690:Galactose; D006026:Glycoside Hydrolases / Q000378:metabolism*; D006372:Helix, Snails / Q000201:enzymology*; D010368:Pectins / Q000378:metabolism*; D012908:Snails / Q000201:enzymology*; D014574:Uronic Acids
D014574:Uronic Acids; D010368:Pectins; D006026:Glycoside Hydrolases; D005690:Galactose
Mode d'action de la polygalacturonase du suc d'Helix pomatia