Polygalacturonase: Difference between revisions
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<Structure load='1czf' size='350' frame='true' align='right' caption='Secondary structure of ''endo''-polygalacturonase II' scene='Insert optional scene name here' />Polygalacturonases (PGs) catalyze the enzymatic depolymerization of pectins – polysaccharides that comprise the plant cell wall. Polymer disassembly of substrates by ''exo-'' and ''endo-'' PGs is carried out via a hydrolytic mechanism. Degradation of pectins in plant cell walls contributes to ripening of fruits, such as tomatoes and melons '''(Polygalacturonases: many genes in search of a function)'''. | <Structure load='1czf' size='350' frame='true' align='right' caption='Secondary structure of ''endo''-polygalacturonase II' scene='Insert optional scene name here' />Polygalacturonases (PGs) catalyze the enzymatic depolymerization of pectins – polysaccharides that comprise the plant cell wall. Polymer disassembly of substrates by ''exo-'' and ''endo-'' PGs is carried out via a hydrolytic mechanism. Degradation of pectins in plant cell walls contributes to ripening of fruits, such as tomatoes and melons '''(Polygalacturonases: many genes in search of a function)'''. | ||
== Function == | == Function == | ||
PGs cleave α-(1-4) – glycosidic bonds between consecutive galacturonic acid residues. | PGs cleave α-(1-4) – glycosidic bonds between consecutive galacturonic acid residues. | ||
