Proteins are polymers which are very critical for the normal functioning of the human body. They are essential for the structure, function, and regulation of the body’s tissues and organs.
Proteins are made up of number of smaller units called amino acids that are attached to one another by peptide bonds and thus form a long chain of polymer called as protein.
A protein at least 40 amino amino joined together by peptide bond is known as protein.
Proteins are complex biomolecules made out of amino-acids bound together with peptide bonds. They can be comprised out of thousands of several polypeptide chains with thousands of amino-acids organised in complex structures. But, some of them can contain only around 50 amino-acid and still posses all of the complex traits of an protein.
Some polypeptides contain only 3 amino-acids, but technically they are not classified as proteins due to a big functional and structural differences between a simple polypeptide chain and a protein. Proteins are made out polypeptide chains, but this is only the primary structure of an protein. the polypeptide chains in a protein are organized into complex 3D structures that give them novel traits and complexity as compared to plain polypeptide chains.
