Sequence identity between a lysine-containing peptide from Leuconostoc mesenteroides glucose-6-phosphate dehydrogenase and an active site peptide from human erythrocyte glucose-6-phosphate dehydrogenase.

Peptides recently isolated and sequenced from a bacterial (Leuconostoc mesenteroides) glucose-6-phosphate dehydrogenase are remarkably homologous to an active site region of the human erythrocyte enzyme, although the enzymes differ in their overall amino acid composition and kinetic properties. The computer program ALIGN, used to determine the best alignment between the two enzyme sequences, gives match-scores which are statistically highly significant.