bio 340

Subcellular fractionation is separating a mixture of proteins from each other and other cellular material; first "break" open or lyse the cell membrane to release content into solution; otherwise known as lysate, extract, or homogenate

Protein structure, function, and purification

Proteins are the building blocks of life, analogous to a DNA being a queen be and the proteins being the workers. Proteins make up 50% of a cells dry mass and are responsible for various actions: catalyst, signal receptors, switches, motors, and tiny pump.