This video tells us about the proteins and the different structures that are present and their importance. This video tells us about the different techniques like the dansyl method, sanger's reagent and edman's reagent. TIMELINE: 0:02 Introduction 0:23 Determination of primarily structure of protein 0:55 Amino acid composition 1:17 Degradation of proteins 1:51 Amino acid sequence 2:20 Dansyl chloride method 4:55 Sanger's reagent 6:06 Edman's reagent 8:15 End