Table 1. Crystal and molecular-replacement model statistics.

	Final PDB code	Resolution (Å)	Anomalous scatterer(s)	No. of residues	Correct MR residues† (%)	Incorrect MR residues† (%)	R.m.s.d., correct residues (Å)
Data set 1	‡	3.6	Se	800	42.5	23.5	1.6
Data set 2	‡	3.2	Se	378	60.8	12.9	1.7
GPCR ECR–Mb	5kvm	3.0	I	459	49.7	11.7	1.5
AAA-ATPase	4d80	3.6	Se	1776	75.2	22.1	1.7
F1-ATPase	2w6f	3.0	S, P	3587	46.7	2.3	0.9
SecYEG–SecA	3din	4.5	Se	2886	47.9	40.7	1.7

^†For the initial MR models, a residue is considered to be ‘correct’ if its C^α position is at most 4 Å distant from a deposited (or best known for data sets 1 and 2) C^α* position and at least one of the C^α neighbours is at most 4 Å distant from a C^α* neighbour. All other residues, i.e. residues not satisfying these criteria, are considered to be ‘incorrect’. The percentages are relative to the total number of residues.

^‡The refined models for data sets 1 and 2 have not yet been deposited in the PDB.