Protein Definiation- Classification Of Protein.

Protein-

Protein is a biomolecule which is made up hydrogen, Nitrogen, Oxygen and Carbon and some phosphate group also present.

When two or more than two molecule of the amino acid are cpmbined peptide bond than, called protein.Functional proteins have shapes that enable them to participate in chemical processes of the body. Functional proteins include some of hormones, growth factors, cell membrane receptors, and enzymes.

Formation of peptide bond-

Classification of protein-

 

Primary Protein-

The sequence of amino - acid linked together to from a polypeptide chain, called parimary protein.

Bond present in primary protein-

.peptide bond.

Secondary Protein-

secondary protein is folded like strucure.

Bond present in Secondary  protein-

. peptide bond

. Hydrogen bond

2 types of Secondary protein

. Alpha helix

. Beta sheet

Teriary protein-

Protein structure is formed when the twists and folds of the secondary structure fold again to form a larger three dimensional structure.

Bond present in Secondary  protein-

. peptide bond

. Hydrogen bond

. Disulfide bond

Quaternary Protein-

Protein structure is a protein consisting of more than one folded amino acid chain.

Bond present in Secondary  protein-

. peptide bond

. Hydrogen bond

. Disulfide bond

. ionic bond