ID 4.2.2.24 DE rhamnogalacturonan exolyase. CA Exotype eliminative cleavage of alpha-L-rhamnopyranosyl-(1->4)-alpha-D- CA galactopyranosyluronic acid bonds of rhamnogalacturonan I CA oligosaccharides containing alpha-L-rhamnopyranose at the reducing end CA and 4-deoxy-4,5-unsaturated D-galactopyranosyluronic acid at the non- CA reducing end. The products are the disaccharide 2-O-(4-deoxy-beta-L- CA threo-hex-4-enopyranuronosyl)-alpha-L-rhamnopyranose and the shortened CA rhamnogalacturonan oligosaccharide containing one 4-deoxy-4,5-unsaturated CA D-galactopyranosyluronic acid at the non-reducing end. CC -!- The enzyme is part of the degradation system for rhamnogalacturonan I CC in Bacillus subtilis strain 168. DR O31527, YESX_BACSU ; //