alpha-maltoheptaose + beta-D-glucose => alpha-maltohexaose + beta-maltose
alpha-maltoheptaose + beta-d-glucose => alpha-maltohexaose + beta-maltose
alpha-maltoheptaose + beta-D-glucose => alpha-maltohexaose + beta-maltose
alpha-maltoheptaose + beta-d-glucose => alpha-maltohexaose + beta-maltose