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Dependence on temperature of mean peptide ellipticity (222 nm) per helical peptide unit of peptide P1 (four helical peptide units), P2 (eight helical peptide units),and P3 (11 helical peptide units). The equation (y = −44,000 + 250T, with T in degrees Celsius) gives the temperature dependence for the infinite helix found in a study (11) of unnucleated helices of varying chain lengths.
