Rubisco: Structural and functional aspects with special reference to catalytic imperfection Hassan Ammir1, Hassan Shamiya2, Nasir Mohd Abdul3 1Department of Botany, Government Degree College Anantnag, Jammu and Kashmir 2Department of Botany, Government Degree College for Women Anantnag, Jammu and Kashmir 3Department of Botany, Government Higher Secondary School, Khari, Jammu and Kashmir *E-mail: ammirmalik01@gmail.com
Online published on 5 October, 2021. Abstract Carbon fixation is one of the most fundamental aspects of plant physiology. It is carried out by RuBisCO (ribulose bisphosphate carboxylase), an enzyme that also catalyzes oxygenation reaction yielding ‘toxic ’intermediates. At optimal conditions, RuBisCO preferentially incorporates inorganic carbon into organic carbon skeletons (RuBP, ribulose-1, 5-bis phosphate), generating two molecules of 3-phosphoglycerate. This simple compound is subsequently used to build other organic molecules of life and contributes significantly to plant growth and increased biomass. Thus, RuBisCO is a potential target for genetic manipulation to improve plant yield by strengthening source-sink relationship. Top Key words RuBisCO, Catalytic imperfection, Carbamylation, Oxygenation, Photosynthesis, Trade off and photorespiration. Top |