1.14.99.53 additional information - chitin binding increases the thermal stability of the enzyme by 8.3 degrees, copper binding increases melting temperature by 21.6 degrees. Addition of chitin to the copper-bound enzyme increases thermal stability by additional 3.5 degrees 740345 1.14.99.53 additional information - thermal unfolding of both apo- and holoCBP21 is reversible. ApoCBP21 unfolds in a simple two-state transition manner. The peak temperature of the differential scanning calorimetry curve, tp, for holoCBP21is (74.4°C and that for apoCBP21 is 65.6°C). HoloCBP21 is stabilized by 35 kJ/mol in terms of the Gibbs energy change for unfolding (pH 5.0, 25°C), compared with apoCBP21 766321 1.14.99.53 49.3 - melting temperature, presence of EDTA 766292 1.14.99.53 59.2 - melting temperature 766292 1.14.99.53 64.1 - wild-type, melting point 767106 1.14.99.53 68.7 - melting temperature, presence of both copper and chitin 740345