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Self-subunit swapping is one of the post-translational maturation of the cobalt-containing nitrile hydratase (Co-NHase) family of enzymes. All of these NHases possess a gene organization of <β-subunit> <α-subunit> <activator protein>, which allows the activator protein to easily form a mediatory complex with the α-subunit of the NHase after translation.(More)
BACKGROUND Activators of Nitrile hydratase (NHase) are essential for functional NHase biosynthesis. However, the activator P14K in P. putida is difficult to heterogeneously express, which retards the clarification of the mechanism of P14K involved in the maturation of NHase. Although a strep tag containing P14K (strep-P14K) was over-expressed, its low(More)
Metallochaperones are metal-binding proteins designed to deliver the appropriate metal to a target protein. The metal is usually transferred between different proteins. In this study, we discovered that metal was transferred between the same subunit of a mutant nitrile hydratase (NHase). Various "activator proteins" mediate the trafficking of metal ions(More)
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