Rhamnogalacturonan endolyase

The enzyme Rhamnogalacturonan endolyase (, rhamnogalacturonase B, α- L -rhamnopyranosyl-(1→4)-α- D -galactopyranosyluronide lyase, Rgase B, rhamnogalacturonan α- L rhamnopyranosyl-(1,4)-α- D -galactopyranosyluronide lyase, RG-lyase, YesW, RGL4, Rgl11A, Rgl11Y, RhiE) is an enzyme with systematic name α- L -rhamnopyranosyl-(1→4)-α- D -galactopyranosyluronate endolyase. catalyses the following process:


 * Endotype eliminative cleavage of L -α-rhamnopyranosyl-(1→4)-α- 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.