Table 2.

Crystallographic data collection statistics.

	pH 7.0	pH 9.0
Space Group	C 2 2 21	C 2 2 21
A	48.86	48.41
B	54.24	55.03
C	94.23	94.58
α	90°	90°
β	90°	90°
γ	90°	90°
Resolution	19.28–2.10 Å	33.93–2.25 Å
Reflections	7238 (534)	5614 (404)
	99.9%	94.1%
Completeness	(99.8%)	(89.8%)
Multiplicity	4.9 (5.0)	3.3 (3.3)
I/sigmaI	6.4 (2.1)	8.7 (5.7)
	21.4%	21.6%
Rwork	(23.8%)	(21.7%)
	26.5%	27.6%
Rfree	(27.1%)	(22.5%)
e.s.u. (work)	0.174 Å	0.218 Å
e.s.u. (free)	0.216 Å	0.278 Å
Baverage	34.733 Å2	43.827 Å2