Chaperon-like activity of nanogels and function as protein nano carrier

Wakiko Asayama, Urara Hasegawa, Shin Ichi Sawada, Kazunari Akiyoshi

Research output: Contribution to conferencePaperpeer-review


In the presence of GroEL (0.2 μM) or nanogels(0.2 μM), refolding of acid denatured GFP(0.05 μM) was arrested. Folding was resumed by addition of ATP (1.0 mM) for GroEL or methyl-β-cyclodextrin(3.7 mM) for nanogels. About 70 % of GFP in GroEL and about 90% of GFP in nanogels recovered native structure. In the presence of GroEL or ALP nanogel, refolding of urea denatured β-D-galactosidase was started by the dilution. About 50 % of β-D-galactosidase recovered to native structure in both systems of GroEL and dodecyl group-bearing pullulan (ALP) nanogel recovered to native structure. Even by the addition of methyl-β-cyclodextrin for CHP nanogels, only 15 % of β-D-galactosidase activity recovered. Hydrophobic groups in the nanogels significantly affect chaperon-like activity.

Original languageEnglish (US)
Number of pages2
StatePublished - 2005
Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
Duration: Sep 20 2005Sep 22 2005


Conference54th SPSJ Symposium on Macromolecules

All Science Journal Classification (ASJC) codes

  • General Engineering


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