D-ribulose 1,5-bisphosphate => alpha-D-ribose 1,5-bisphosphate
d-ribulose 1,5-bisphosphate => alpha-d-ribose 1,5-bisphosphate
D-ribulose 1,5-bisphosphate => alpha-D-ribose 1,5-bisphosphate
d-ribulose 1,5-bisphosphate => alpha-d-ribose 1,5-bisphosphate