Proteins, Structure and Functions

The enzyme-substrate complex is a temporary molecule formed when an enzyme comes into perfect contact with its substrate. It is crucial for catalyzing biochemical reactions.

Proteins are made of 21 building blocks known as amino acids.

Charged amino acid regions allow the protein to interact with substances that have complementary charges.

Amino acids are made of Carbon (C), Hydrogen (H), Oxygen (O), and Nitrogen (N).

Enzymes are proteins that bind to specific substances (substrates) to speed up chemical reactions.

The primary structure of a protein is the sequence of amino acids in a polypeptide chain.

The secondary structure refers to the local folded structures that form within a protein due to hydrogen bonding, such as alpha helices and beta sheets.

The tertiary structure is the overall three-dimensional shape of a protein, formed by the interactions between the side chains of the amino acids.

The quaternary structure is the arrangement of multiple polypeptide chains into a single functional protein.

Hydrophobic amino acids tend to be found in the interior of proteins, away from water, helping to stabilize the protein's structure.