Table 1. Effective figure of merit of IF-5A solvent-flattened phases.

Mean values of the effective figure of merit [〈cos(Δϕ)〉] of solvent-flattened phases obtained with real-space or reciprocal-space solvent flattening relative to phases from the refined model of IF-5A (Peat et al., 1998 ▶) are listed. Three sets of starting points were used, corresponding to inclusion of one to three of the Se atoms in the phasing model. Starting phases were calculated with SOLVE (Terwilliger & Berendzen, 1999 ▶ b).