Which is the most abundant protein in whole of the biosphere?

Protein:

1. They are very large molecules made up of basic units called amino acids.
2. Amino acids include nitrogen in addition to carbon, hydrogen, and oxygen.
3. A protein molecule is a large, complex molecule composed of twisted, folded chains of one or more amino acids.

RubisCO:

1. RuBisCO is the most abundant protein in the world.
2. The complete form of RuBisCO is ribulose 1,5 bisphosphate carboxylase oxygenase.
3. It catalyzes the carboxylation of RuBP and the fixation of CO2 during glucose synthesis in the Calvin cycle.