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Literature summary for 4.2.1.84 extracted from

  • Chen, Y.; Jiao, S.; Wang, M.; Chen, J.; Yu, H.
    A novel molecular chaperone GroEL2 from Rhodococcus ruber and its fusion chimera with nitrile hydratase for co-enhanced activity and stability (2018), Chem. Eng. Sci., 192, 235-243 .
No PubMed abstract available

Cloned(Commentary)

Cloned (Comment) Organism
chaperone GroEL2 is co-expressed with nitrile hydratase (NHase) in Escherichia coli in three ways: (a) monocistronic expression with one T7 promoter, (b) bicistronic expression with double T7 promoters, and (c) fusion expression with one T7 promoter driving the NHase-GroEL2 chimera. The NHase-GroEL2 chimera is the most successful expression strategy. Maximal nitrile hydratase activity is enhanced by 63.6% compared with the single NHase control Rhodococcus ruber

General Stability

General Stability Organism
residual activity levels after heat shock and acrylamide immersion increase by 2.9fold and 1.1fold, respectively in nitrile hydratase-chaperone GroEL2 chimera compared with the single nitrile hydratase control Rhodococcus ruber

Organism

Organism UniProt Comment Textmining
Rhodococcus ruber
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Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
additional information
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residual activity levels after heat shock and acrylamide immersion increase by 2.9fold and 1.1fold, respectively in nitrile hydratase-chaperone GroEL2 chimera compared with the single nitrile hydratase control Rhodococcus ruber