alpha-maltotetraose + beta-D-glucose => alpha-maltotriose + beta-maltose
alpha-maltotetraose + beta-d-glucose => alpha-maltotriose + beta-maltose
alpha-maltotetraose + beta-D-glucose => alpha-maltotriose + beta-maltose
alpha-maltotetraose + beta-d-glucose => alpha-maltotriose + beta-maltose