Search for folding initiation sites from amino acid sequence |
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Authors: | Galzitskaya Oxana V |
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Institution: | Institute of Protein Research, Russian Academy of Sciences, Institutskaya Str. 4, Pushchino, Moscow Region 142290, Russia. ogalzit@vega.protres.ru. |
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Abstract: | A crucial event in protein folding is the formation of a folding nucleus, which is a structured part of the protein chain in the transition state. We demonstrate a correlation between locations of residues involved in the folding nuclei and locations of predicted amyloidogenic regions. The average Phi-values are significantly greater inside amyloidogenic regions than outside them. We have found that fibril formation and normal folding involve many of the same key residues, giving an opportunity to outline the folding initiation site in protein chains. The search for folding initiation sites for apomyoglobin and ribonuclease. A coincides with the predictions made by other approaches. |
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