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Protein Purification

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Protein purification is an essential step after protein isolation. Protein purification ensures the removal of all contaminants from the sample pool. Purification depends on the chemical and physical interactions of protein molecules and chemical moieties. These techniques are performed with tags and without tags. Tag purification involves ammonium sulfate precipitation and dialysis. Purification of proteins with tags utilizes affinity and size exclusion chromatography. There are various methods available for this, however, we will discuss some most common methods for protein purification.

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