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What can be done to improve soluble protein yield in an expression host?

Answer and explanation

Correct answer: Lower temperature and folding support

Soluble protein yield depends not only on how much protein is synthesized but also on whether the newly made polypeptide folds correctly and remains dissolved. Lowering the induction or culture temperature often slows translation and gives the chain more time to fold, while chaperone or folding support can assist difficult proteins. Therefore, option A is correct. These measures may reduce aggregation and inclusion-body formation, although the best condition must be tested experimentally. Boiling the host kills cells and denatures proteins; removing DNA does not directly correct folding, and drying agar is unrelated to soluble expression.

Related tags

Soluble ProteinProtein FoldingExpression HostCompetent HostPrinciples Of BiotechnologyBiotechnologyClass 11 Mcq

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