D-cellotetraonate + H(+) => D-cellotetraono-1,5-lactone + H2O
d-cellotetraonate + h(+) => d-cellotetraono-1,5-lactone + h2o
D-cellotetraonate + H(+) => D-cellotetraono-1,5-lactone + H2O
d-cellotetraonate + h(+) => d-cellotetraono-1,5-lactone + h2o