WHAT IS THE ROLE OF RuBP IN BIOSYNTHETIC PROCESS ?
- RuBp( Ribulose-1,5-bisphosphate) is an organic substance that is involved in photosynthesis.The enzyme RuBp is the most important and abundant enzyme in the plant world. RuBp initiates carboxylation of ribulose-1,5,biphosphate to produce a transient 6- carbon compound called 2-carboxy 3-keto 1, 5- biphosphoribitol which splits into 2 molecules of 3-PGA.
- Under some specific conditions like high oxygen concentration and light, it catalyzes oxygen with ribulose biphosphate. This reaction is called oxygenation which leads to the formation of one molecule of 2- phosphoglycolic acid and one molecule of 3- phosphoglyceric acid. The oxygenation leads to the photorespiration process.