PhaP_Az thermal stability.

<p>(<b>A</b>) Denaturation was followed by measuring the ellipticity change in the far-UV region at 222 nm. (○) PhaP_Az 3 µM (apparent Tm = 55°C) (•) PhaP_Az 1.5 µM. (<b>B</b>) Far-UV CD Spectra of PhaP_Az (3 µM) in 20 mM sodium phosphate buffer pH 7.3 containing NaCl 50 mM and 1 mM DTT at different temperatures (from 20°C to 80°C). Recovered spectra were registered upon immediate cooling down the scanned sample and after a 10 min waiting period at 20°C.