To understand how a protein gets its final shape or conformation, we need to understand the four levels of protein structure: primary, secondary, tertiary, and quaternary.

Learn about the structure of proteins and the diverse roles these molecules play in the cell.

Each protein in your cells consists of one or more polypeptide chains. Each of these polypeptide chains is made up of amino acids, linked together in a specific order.

The four levels of protein structure are primary, secondary, tertiary, and quaternary. It is helpful to understand the nature and function of each level of protein structure in order to fully …

Now, any protein that's made up of a single polypeptide is only going to have primary structure, secondary structure and tertiary structure, but if we're dealing with something like hemoglobin, …

A It exhibits quaternary structure with multiple polypeptide chains. B It has a secondary structure made of α helices and β sheets. C It is a homopolymer with identical subunits. D

Amino acids are the essential building blocks of proteins, which carry out almost every function in our bodies. Each protein’s unique composition of amino acids determines its specific structure …

This article goes over the forces driving protein folding and the forces that stabilize protein structure, as well as causes of protein denaturation.

Understand the fluid mosaic model and how phospholipids, proteins, and carbohydrates create structure and flexibility. Discover how membrane organization supports selective permeability …

Each protein has a specific cellular function, ranging from catalysis to structural integrity. This specific functions are a cause of their predetermined structure.