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Protein product name
The PGA Screen
Protein Crystallisation Screening
NH and/or COOH modification
The PGA screen is one of those containing "exotic" conditions for protein crystallization, allowing the exploration of non-conventional chemistries in the crystallization phase diagram. We use it routinely and found that, in some cases such as in our latest publication (doi: 10.1038/s41467-018-05631-5), initial crystal hits could only be obtained using PGA as crystallization agent.