carbon-oxygen lyase activity, acting on polysaccharides pectin lyase activity https://github.com/geneontology/go-ontology/issues/30193 pectin methyltranseliminase activity molecular_function PMGL activity PL activity pectolyase activity (1->4)-6-O-methyl-alpha-D-galacturonan lyase activity GO:0047490 MetaCyc:RXN-19781 polymethylgalacturonic transeliminase activity EC:4.2.2.10 PNL activity pectin trans-eliminase activity Catalysis of the reaction: a pectin = an oligosaccharide with 4-deoxy-6-O-methyl-alpha-D-galact-4-enuronate end + a pectin. This reaction is the eliminative cleavage of (1->4)-alpha-D-galacturonan methyl ester to give oligosaccharides with 4-deoxy-6-O-methyl-alpha-D-galact-4-enuronosyl groups at their nonreducing ends. endo-pectin lyase activity