Immunohistochemistry Cytokeratin 19

Get tips on using Anti-Cytokeratin AE1/AE3 Antibody, recognizes acidic & basic cytokeratins, clone AE1/AE3 to perform Flow cytometry Anti-bodies Human - Keratin

Get tips on using pan-cadherin Antibody (CH-19): sc-59876 to perform Western blotting P-Cadherin

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.