Table 1. Data-collection statistics.

Values in parentheses are for the last shell.

X-ray source	PAL-4A
Space group	C2221
Unit-cell parameters (Å)	a = 78.0, b = 145.1, c = 132.1
Wavelength (Å)	1.00
Resolution range (Å)	50–2.1
No. of observed reflections	84618
No. of unique reflections	44121
Completeness (%)	99.7 (99.0)
Rsym†	0.061 (0.240)
I/σ(I)	24.8 (5.5)

^† R _sym = , where I is the intensity of reflection h, is the sum over all reflections and is the sum over i measurements of reflection h.