D-ribulose 1,5-bisphosphate + O2 <=> 2-phosphoglycolate + (2R)-3-phosphoglycerate + 2 H(+)
d-ribulose 1,5-bisphosphate + o2 <=> 2-phosphoglycolate + (2r)-3-phosphoglycerate + 2 h(+)
D-ribulose 1,5-bisphosphate + O2 <=> 2-phosphoglycolate + (2R)-3-phosphoglycerate + 2 H(+)
d-ribulose 1,5-bisphosphate + o2 <=> 2-phosphoglycolate + (2r)-3-phosphoglycerate + 2 h(+)