ribulose biphosphate

Also found in: Encyclopedia.

ribulose biphosphate (RuBP) or ribulose diphosphate

a 5-carbon ketose that acts as a receptor of CO2 in the Calvin cycle.
References in periodicals archive ?
Sulfite affects the carbon fixation, ribulose biphosphate carboxylase, glycolate oxidase activity, and photophosphorylation [25].
pMON25948 contains phbA, phbB, and phbC, each under the control of the CaMV 35S promoter and fused to the Arabidopsis ribulose biphosphate carboxylase (RuBisCo) small subunit la transit peptide, pMON25949 is identical except phbA was replaced with bktB.