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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.

Proteins Protein isolation Bacteria Vibrio alginolyticus

Get tips on using pPIC9-His-FIP-Ganoderma to perform Protein Expression Eukaryotic cells - P. pastoris Ganoderma FIP

Products Yan-Ye Ruan, Liaoning Province Key Laboratory of Agricultural Te pPIC9-His-FIP-Ganoderma

Get tips on using pTip-QC2-gi_21221697 to perform Protein Expression Prokaryotic cells - R. erythropolis putative gntR-family regulator

Products Tomoshi Kameda, Artificial Intelligence Research Center, Nationa pTip-QC2-gi_21221697

Get tips on using pTip-QC2-gi_21218674 to perform Protein Expression Prokaryotic cells - R. erythropolis putative DNA-binding protein

Products Tomoshi Kameda, Artificial Intelligence Research Center, Nationa pTip-QC2-gi_21218674

Get tips on using pMHL_2002-bfloGFPa1 to perform Protein Expression Eukaryotic cells - T. pseudonana IbpA DR2 antigen from Histophilus somni

Products Mark Hildebrand, Marine Biology Research Division, Scripps Insti pMHL_2002-bfloGFPa1

Get tips on using pSS1-EBA140RIII–V to perform Protein Expression Prokaryotic cells - L. lactis EBA140RIII–V P. falciparum

Products Michael Theisen, Centre for Medical Parasitology at Department o pSS1-EBA140RIII–V

Get tips on using pIEX-5-6His-mMBP-UMODpXR to perform Protein Expression Eukaryotic cells - HEK293 mMBP

Products Luca Jovine, Karolinska Institutet, Department of Biosciences an pIEX-5-6His-mMBP-UMODpXR

Get tips on using MrNV-pGEX-6P-1 to perform Protein Expression Prokaryotic cells - E. coli MrNV capsid

Products Paisarn Sithigorngul, Department of Biology, Faculty of Science, MrNV-pGEX-6P-1

Get tips on using pIRES2-EGFP-PBD-1 to perform Protein Expression Prokaryotic cells - E. coli PBD1-EGFP

Products Hai-Jun Huang, Department of Animal Biotechnology and Cell Engin pIRES2-EGFP-PBD-1

Get tips on using pRSET A-FhFtn-1 to perform Protein Expression Prokaryotic cells - E. coli FhFtn-1

Products Ana M. Espino, Department of Microbiology, University of Puerto pRSET A-FhFtn-1

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