sucrose + A <=> 3-dehydro-alpha-D-glucosyl beta-D-fructofuranoside + AH2
sucrose + a <=> 3-dehydro-alpha-d-glucosyl beta-d-fructofuranoside + ah2
sucrose + A <=> 3-dehydro-alpha-D-glucosyl beta-D-fructofuranoside + AH2
sucrose + a <=> 3-dehydro-alpha-d-glucosyl beta-d-fructofuranoside + ah2