Yes, RuBisCO is a protein.
According to the provided reference, RuBisCO is explicitly identified as a "complete protein" and it is considered as widely abundant. Furthermore, its nutritional potential as a beneficial food additive is also highlighted. Therefore, the answer is definitively yes.
Here's a summary of why RuBisCO is considered a protein:
- Composition: Proteins are large biomolecules consisting of amino acid residues bonded together by peptide bonds. RuBisCO is made up of amino acids linked in this manner, which is a fundamental characteristic of proteins.
- Function: Proteins perform a wide variety of functions in living organisms. RuBisCO acts as an enzyme catalyzing a critical step in carbon fixation during photosynthesis.
- Structure: Proteins have complex three-dimensional structures that determine their function. RuBisCO has a specific quaternary structure consisting of multiple subunits, which is typical of many proteins.
