Chapter 5 : 3D structure of proteins

The structure of the protein is obtained during the formation of the protein. The structure of the protein is necessary for its function: some active sites are present on the proteins. Those sites are highly specific to one target substrate. Other substrates cannot reach the active site. The rest of the molecule is mostly there […]

Chapter 4 : Primary structure of proteins

The primary structure of a protein is the succession, or sequence, of the AA. Proteins are made of one linear chain of amino acids. This linear chain takes a 3D structure (secondary and tertiary structures) because of the interactions between the sequences in the chain and the interactions (hydrophobic or hydrophilic) with the surrounding. The […]

Chapter 3 : Proteins and amino acids

The word protein comes from the Greek word proteos, which means first. Proteins are indeed one essential element of the life. They are well defined in composition, size and shape and each one has a very precise role: transport, defence, hormones, … Some have also an exotic role. For instance some proteins prevent the blood […]

Chapter 2 : Glucides

Glucides are essentially cyclic hydrates of carbon (CN(H2O)N) but can also wear N, S, P. The cycles are usually 5 or 6 atoms long and form macromolecules when cycles bind together. One example is the cellulose, which is the walls of vegetables. As humans, we don’t properly digest the cellulose contained in the salads we eat […]