5-phospho-D-xylonate + H(+) => D-xylono-1,4-lactone 5-phosphate + H2O
5-phospho-d-xylonate + h(+) => d-xylono-1,4-lactone 5-phosphate + h2o
5-phospho-D-xylonate + H(+) => D-xylono-1,4-lactone 5-phosphate + H2O
5-phospho-d-xylonate + h(+) => d-xylono-1,4-lactone 5-phosphate + h2o