EC number 4.2.2.23 | ExPASy NiceZyme view MetaCyc | |
Rhamnogalacturonan endolyase (EC 4.2.2.23, rhamnogalacturonase B, alpha-L-rhamnopyranosyl-(1->4)-alpha-D-galactopyranosyluronide lyase, Rgase B, rhamnogalacturonan alpha-L-rhamnopyranosyl-(1,4)-alpha-D-galactopyranosyluronide lyase, RG-lyase, YesW, RGL4, Rgl11A, Rgl11Y, RhiE) is an enzyme with systematic name alpha-L-rhamnopyranosyl-(1->4)-alpha-D-galactopyranosyluronate endolyase. This enzyme catalyses the following chemical reaction
Endotype eliminative cleavage of L-alpha-rhamnopyranosyl-(1->4)-alpha-D-galactopyranosyluronic acid bonds of rhamnogalacturonan I domains in ramified hairy regions of pectin leaving L-rhamnopyranose at the reducing end and 4-deoxy-4,5-unsaturated D-galactopyranosyluronic acid at the non-reducing end.
The enzyme is part of the degradation system for rhamnogalacturonan I in Bacillus subtilis strain 168 and Aspergillus aculeatus.
References
Rhamnogalacturonan endolyase Wikipedia(Text) CC BY-SA