In this article we will discuss about the two main types of amino acids, i.e, alphatic amino acids and cyclic amino acids. 1. Aliphatic Amino Acids: A. Hydrocarbon Chain Amino Acids: 1) Glycine (Gly) or glycocoll, or α-aminoacetic acid is the simplest of the amino acids because R = H: Glycine is very widely distributed in proteins; it is particularly [...]
In this article we will discuss about the structure and properties of hemoglobins. Structure of Hemoglobins: As indicated by their name, hemoglobins consist of a prosthetic group; the heme (4%) and a protein part: the globin (96%). A. Heme: This is the prosthetic group common to various hemoglobins (while globin varies in different hemoglobins). It contains one molecule of protoporphyrin [...]
In this article we will discuss about the mechanisms of enzymatic reactions. While studying the kinetics of enzymatic reactions we noted that Michaelis was led to postulate the formation of an intermediate enzyme-substrate complex right at the beginning of this century. What was then only a hypothesis was later largely confirmed and proved. The great disproportion between the size of [...]