Heme CD as a probe for monitoring local structural changes in hemeproteins: Alkaline transition in hemeproteins

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 01 Aug 1995 English Publisher:Springer Science and Business Media LLCJournal:Proceedings / Indian Academy of Sciences, volume 107, pages 497-503 (issn: 0253-4134,

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Authors: Tapan K. Das; Shyamalava Mazumdar; Samaresh Mitra;

doi: 10.1007/bf02840805

Heme CD as a probe for monitoring local structural changes in hemeproteins: Alkaline transition in hemeproteins

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Abstract

Structural change due to acid-alkaline transition in hemeproteins were monitored by circular dichroism measurements in the Soret region. It was observed that in cytochrome c and horseradish peroxidase, alkaline transition results in a large change in the heme CD due to significant conformational change in the heme cavity region. In metmyoglobin a simple protolytic mechanism associated with alkaline transition involves very small conformational changes.

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Tata Institute of Fundamental Research
India

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