The document discusses protein sequencing techniques. It begins with an introduction to proteins and protein sequencing. The history of protein sequencing is then outlined, including early work by Edman and Sanger. Methods for determining amino acid composition through hydrolysis, separation, and analysis are described. The mechanisms of Sanger's method using dinitrophenyl reagents and Edman degradation using phenylisothiocyanate are explained. Applications and limitations of protein sequencing are mentioned, along with relevant institutes in India and abroad. The conclusion restates that protein sequencing provides information on structure and function by determining amino acid sequence.