Table 1. Summary of data collection and analysis of heavy-atom derivatives in which 10 to 3.5 A area-detector data were used. The number in parentheses after the number of unique reflections is the percent completeness of the data. Rmerge is reported for intensities. RF is the percentage change between native (Fl) and scaled derivative (F2) data. FH/E is the average value of the heavy-atom contribution divided by lack-of-closure error. No Au position was identified in the combined Pt-Au heavy-atom soak.

   Data              Resolution     Observations      
                           (A)    Total   Unique(%)  Rmerge   Rf  FH/E
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Native                     2.8  158,195  19,954(96)   11.3               
KAu(CN)2, 1 mM (3)         3.1   42,557  13,189(86)    9.9    9.5   1.0   
KAu(CN)2, 5 mM (1)         3.1   56,296  14,379(99)    9.9   20.6   1.0   
K2Pt(CN)4 (1)              3.0   61,888  15,513(96)    9.2   14.1   0.9
K2HgI4 (2)                 3.4   17,051   9,929(85)    8.9   31.2   1.1
K2PtCl4 (1)                3.4   47,653  10,343(92)    9.9   20.6   1.0   
K2Pt(NO2)4 (7)             3.3   89,359  12,385(98)    9.5   21.1   1.0    
K2Pt(NO2)4 + KAu(CN)2 (1)  3.35  47,679  11,008(95)   11.0   24.1   1.1   
Na2IrCl6 (1)               3.6   21,571   6,551(70)   11.9   22.0   1.0