Table 1. Data-collection and refinement statistics.

Values in parentheses are for the highest resolution shell.

Crystal	A	A	B	C	D
Data set	A1	A2	B1	C1	D1
PDB code	3u3p	3u3q	3u3s	3u3v	3u3t
X-ray source	17A	17A	17A	1A	1A
Crystal-to-detector distance (mm)	310	160	160	91	91
No. of images	360	360	360	248	281
Oscillation width ()	0.5	1	1	1	0.75
Wavelength ()	0.98	2.00	2.00	2.70	2.70
Space group	P6122	P6122	P6122	P6122	P6122
Unit-cell parameters ()
a	77.86	77.91	77.68	77.56	77.47
c	186.56	186.42	186.81	187.41	185.81
Mosaicity ()	0.32	0.48	0.22	0.38	0.65
No. of molecules in asymmetric unit	1	1	1	1	1
Resolution range ()	50.002.09 (2.162.09)	50.002.70 (2.822.70)	50.002.70 (2.822.70)	50.002.95 (3.082.95)	50.003.20 (3.343.20)
R merge (%)	6.4 (25.5)	7.5 (37.3)	9.7 (38.0)	11.4 (42.4)	10.4 (36.4)
Mean I/(I)	79.09 (15.79)	80.782 (21.0)	73.15 (14.9)	60.70 (12.76)	54.10 (12.47)
Completeness (%)	99.9 (100.0)	99.9 (99.9)	99.9 (99.7)	99.8 (99.8)	99.8 (99.9)
Multiplicity	20.4	39.1	39.3	25.3	20.1
Refinement
Resolution ()	38.112.09	50.002.70	50.002.70	50.002.96	50.003.21
No. of reflections	19478	9338	9308	7227	5655
R work/R free (%)	22.53/27.05	19.51/23.54	19.65/26.01	19.24/25.70	20.79/26.08
No. of atoms	1375	1375	1375	1375	1233
No. of protein atoms	1233	1233	1233	1233	1233
No. of waters	142	142	142	142	0
Wilson B (2)	30.1	65.9	62.4	89.7	102.9
Mean B (2)	35.3	44.3	41.0	51.0	57.4
R.m.s. deviations
Bond lengths ()	0.023	0.020	0.017	0.017	0.015
Bond angles ()	2.4	2.1	2.0	2.0	1.9
Ramachandran analysis (%)
Favoured region	93.2	93.2	93.8	91.9	91.3
Allowed region	4.97	3.73	3.73	6.83	5.59
Outliers	1.86	3.10	2.48	1.24	3.11