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Characterization of Fluoroalcohols-Induced Intermediates of Mucor miehei Lipase at Low pH

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We have previously characterized an acid-unfolded (UA) state of Mucor miehei lipase at pH 2. The effect of 2,2,2-trifluoroethanol (TFE) and 1,1,1,3,3,3-hexafluoroisopropanol (HFIP) resulted in characterization of molten-globule (MG) like states with β-sheet secondary structure at 15% (v/v) TFE and 6% (v/v) HFIP. α-Helical states accumulate at 80% (v/v) TFE and 30% (v/v) HFIP.

Keywords: Lipase; Molten Globule like state; Mucor miehei; circular dichroism; partially folded intermediate

Document Type: Research Article


Publication date: May 1, 2008

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  • Protein & Peptide Letters publishes short papers in all important aspects of protein and peptide research, including structural studies, recombinant expression, function, synthesis, enzymology, immunology, molecular modeling, drug design etc. Manuscripts must have a significant element of novelty, timeliness and urgency that merit rapid publication. Reports of crystallisation, and preliminary structure determinations of biologically important proteins are acceptable. Purely theoretical papers are also acceptable provided they provide new insight into the principles of protein/peptide structure and function.

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