Principle purpose of this lecture is to Presentation on Protein Basics. This presentation briefly explain Protein function and Protein structure with examples and pictures. Here primary discussions are Amino acids and Linkage. Finally analysis Protein conformation framework in terms of Dihedral angles and Ramachandran plots also focus on Sequence similarity and variation. This lecture also explain Hemoglobin, Red Blood Cell, Hydrogen Bonding, Disulfide Bonds, General Amino Acid Structure, Peptide Bond Formation and Hemoglobin Polymerization.