On the simulation of enzymatic digest patterns: the fragmentation of oligomeric and polymeric galacturonides by endo-polygalacturonase II.
A simulation methodology for predicting the time-course of enzymatic digestions is described. The model is based solely on the enzyme's subsite architecture and concomitant binding energies. This allows subsite binding energies to be used to predict the evolution of the relative amounts of different products during the digestion of arbitrary mixtures of oligomeric or polymeric substrates. The methodology has been specifically demonstrated by studying the fragmentation of a population of oligogalacturonides of varying degrees of polymerization, when digested by endo-polygalacturonase II (endo-PG II) from Aspergillus niger.
Hunt
Jonathan J
JJ
Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand.
Cameron
Randall
R
Williams
Martin A K
MA
D001234:Aspergillus niger / Q000737:chemistry / Q000201:enzymology*; D001665:Binding Sites; D002240:Carbohydrate Sequence; D003198:Computer Simulation; D019075:Electrophoresis, Capillary; D009844:Oligosaccharides / Q000737:chemistry / Q000378:metabolism*; D011096:Polygalacturonase / Q000737:chemistry / Q000378:metabolism*
D009844:Oligosaccharides; C400187:endopolygalacturonase II; D011096:Polygalacturonase