Rhamnogalacturonan endolyase

The enzyme Rhamnogalacturonan endolyase (EC 4.2.2.23, rhamnogalacturonase B, α-L-rhamnopyranosyl-(1→4)-α-D-galactopyranosyluronide lyase, Rgase B, rhamnogalacturonan α-Lrhamnopyranosyl-(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.^{[1][2][3][4][5][6][7][8]} 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 Dgalactopyranosyluronic acid at the non-reducing end.

Rhamnogalacturonan endolyase
Identifiers
EC no.	4.2.2.23
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Search PMC articles PubMed articles NCBI proteins

The enzyme is part of the degradation system for rhamnogalacturonan I in Bacillus subtilis strain 168 and Aspergillus aculeatus.