| 摘要 |
This invention provides a recombinant protein expression system using a host and a cell-free translation system capable of universally expressing a large amount of any proteins as soluble proteins while preventing expression of the toxicity of a desired protein in hosts, formation of inclusion bodies and decomposition with proteases by expressing the desired protein as a fusion protein with chaperonins, that are, about 60 kDa molecular chaperones, 60 kDa heat shock proteins, or thermosomes and accommodating it certainly in the inside of a stereostructure of a chaperonin. A process for producing a protein, which comprises transcribing and translating a gene containing a gene encoding the linked chaperonin subunits and a gene encoding a desired protein thereby synthesizing a fusion protein having the desired protein linked via a peptide linkage to the linked chaperonin subunits.
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