| 摘要 |
A GroEL chaperone polypeptide, or homologue thereof, or fragment thereof having protein refolding activity, comprising one or more amino acid modifications at any one of amino acid residues (207, 212, 217, 223, 233, 26 7, 271, 294, 305, 308 and 326) of the GroEL amino acid sequence shown as SEQ I. D. No. 1 or their equivalent positions in other homologous chaperone polypeptid es is provided.
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