Study of chaperone-like activity of human haptoglobin: conformational changes under heat shock conditions and localization of interaction sites

. 2002 Oct ; 383 (10) : 1667-76.

Jazyk angličtina Země Německo Médium print

Typ dokumentu časopisecké články, práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/pmid12452443

With respect to the mechanism of chaperone-like activity, we examined the behavior of haptoglobin under heat shock conditions. Secondary structure changes during heat treatment were followed by circular dichroism, Raman and infrared spectroscopy. A model of the haptoglobin tetramer, based on its sequence homology with serine proteases and the CCP modules, has been proposed. Sequence regions responsible for the chaperone-like activity were not fully identical with the region that takes part in formation of the hemoglobin-haptoglobin complex. We can postulate the presence of at least two different chaperone-binding sites on each haptoglobin heavy chain.

Citace poskytuje Crossref.org

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