M. Mutter et al., RHAMNOGALACTURONASE-B FROM ASPERGILLUS ACULEATUS IS A RHAMNOGALACTURONAN NOPYRANOSYL-(1-]4)-ALPHA-D-GALACTOPYRANOSYLURONIDE LYASE, Plant physiology, 110(1), 1996, pp. 73-77
The recently described rhamnogalacturonase B, which is able to degrade
ramified hairy regions of pectin, was found to be a rhamnogalacturona
n opyranosyl-(1-->4)-alpha-o-galactopyranosyluronide lyase. The cleava
ge site and mechanism differ from that of the previously described rha
mnogalacturonase A, which is a hydrolase and can now be termed rhamnog
alacturonan topyranosyluronide-(1-->2)-alpha-L-rhamnopyranosyl hydrola
se.