Module 1: Proteins

Proteins

Large complex molecules made up of amino acids that play many critical roles in the body

Common functions of proteins

Catalyse reactions, transport molecules, cell signalling, storage, structure, immune protection, DNA/RNA replication

Different types of proteins

Antibodies, contractile proteins, enzymes, hormonal proteins, structural proteins, storage proteins, transport proteins

Amino acids

Building blocks of proteins which are linked by peptide bonds

Amino acids chirality

L-form

Peptide bonds

Covalent bonds formed between the alpha-amino group of one amino acid and the alpha-carboxyl group of another amino acid

Peptide bonds structure

Planar, trans, dipole

Phi angle

The angle of the bond between the alpha-amino group and the alpha-carbon

Psi angle

The angle of the bond between the alpha-carbon and the alpha-carboxyl group