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 = d-ribulose 1,5-bisphosphate