Proteins are classified in various ways: 1. Simple Proteins 2. Conjugated Proteins 3. Derived Proteins. 1. Simple Proteins: These are pure proteins, uncombined with anything else. The important members of this group are as follows: (a) Protamines: Found in the sperm of certain fishes; molecular wt. low, about 2000; strongly basic in character, not coagulated by heat and soluble in [...]
In this article we will discuss about the structure of IgG, explained with the help of suitable diagrams. Electron microscopic studies have revealed that IgG is a Y-shaped tetrapeptide protein (Fig. 8.20) formed of two identical light chains and two identical heavy chains. So an antibody is represented as H2L2. Light Chains: Each light chain is formed of about 214 [...]
In this article we will discuss about:- 1. Denaturation of Proteins 2. Important Properties of Proteins 3. Classification. Denaturation of Proteins: The three-dimensional conformation (the primary, secondary, tertiary and even in some cases, quaternary structure) is characteristic of a native protein. This conformation can be upset and disorganized, without breakage of any peptide linkage, only by the rupture of linkages [...]