Protein isolation is a technique that involves isolation and/ or purification of protein from cells or tissues via chromatography or electrophoresis. The major challenges in protein isolation include: 1. The concentration of proteins in cells is variable and tends to be small for some intracellular proteins. Unlike nucleic acids, proteins cannot be amplified. 2. Proteins are more unstable than nucleic acids. They are easily denatured under suboptimal temperature, pH or salt concentrations. 3. Finally, no generalized technique/protocol can be applied for protein isolation. Proteins may have different electrostatic (number of positively or negatively charged amino acids) or hydrophobic properties. Therefore, protein purification requires multiple steps depending on their charge (a negatively charged resin/column for positively charged proteins and vice-versa), dissolution (using detergents) and unlike in the case of DNA and RNA, instead of using salts, proteins should be isolated by isoelectric precipitation.
Get tips on using FastDNA™ SPIN Kit for Feces to perform DNA isolation / purification Bacteria - Gram positive Clostridium difficile
Get tips on using Gentra Puregene Mouse Tail Kit (4 g) to perform DNA isolation / purification Tissue - murine tail biopsies
Get tips on using TRIzol Reagent to perform RNA isolation / purification Cells - primary human airway epithelial cells
Get tips on using TRIzol Reagent to perform RNA isolation / purification Cells - primary mouse tracheal epithelial cells
Get tips on using TRIzol Reagent to perform RNA isolation / purification Cells - primary rat marrow stromal cells
Get tips on using TRIzol Reagent to perform RNA isolation / purification Cells - primary human tracheal epithelial cells
Get tips on using TRIzol Reagent to perform RNA isolation / purification Cells - primary human skeletal muscle cells
Get tips on using TRIzol Reagent to perform RNA isolation / purification Cells - primary human marrow stromal cells
Get tips on using TRIzol Reagent to perform RNA isolation / purification Cells - primary human bronchial epithelial cells
Fill out your contact details and receive price quotes in your Inbox
Outsource experiment