,WT apo 100 K,WT* apo 180 K,WT* apo 240 K,WT* apo 278 K Rwork multiconf,0.1580,0.1708,0.1674,0.1752 Rwork re-refined single-conf,without solvent picking,0.1662 0.1740,0.1803 0.1877,0.1804 0.1868,0.2014 0.1976 Rwork re-refined single-conf,with solvent picking ,0.1671 0.1733,0.1816 0.1875,0.1851 0.1890,0.2013 0.1973 Rfree multiconf,0.1926,0.1997,0.2123,0.2059 Rfree re-refined single-conf,without solvent picking,0.1982 0.2031,0.2078 0.2126,0.2158 0.2264,0.2241 0.2253 Rfree re-refined single-conf ,with solvent picking ,0.1951 0.1971,0.2065 0.2086,0.2130 0.2255,0.2231 0.2211