Protein Expression Eukaryotic cells CHO

Get tips on using Expi293™ Expression System Kit to perform Protein expression and purification Mammalian cells - HEK 293 AT2R

Get tips on using Expi293™ Expression System Kit to perform Protein expression and purification Mammalian cells - HEK 293 AT1R

Get tips on using Expi293™ Expression System Kit to perform Protein expression and purification Mammalian cells - HEK 293 ECD

Get tips on using Expi293™ Expression System Kit to perform Protein expression and purification Mammalian cells - HEK 293 Mt-PA

Get tips on using Bac-to-Bac™ Baculovirus Expression System to perform Protein expression and purification Insect cells - Sf9 Drosha

Get tips on using Expi293™ Expression System Kit to perform Protein expression and purification Mammalian cells - HEK 293 HER2 leader peptide

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 pMT/BiP/V5-His A, B, & C Drosophila Expression Vectors to perform Protein expression and purification Insect cells - S2 HER2

Get tips on using Subcellular Protein Fractionation Kit for Cultured Cells to perform Protein isolation Mammalian cells - HOG

Get tips on using Subcellular Protein Fractionation Kit for Cultured Cells to perform Protein isolation Mammalian cells - STTG1