Table 1. ^MMTase X-ray data-collection and refinement statistics.

Values in parentheses are for the highest resolution shell.

Space group	P43
Unit-cell parameters (Å)	a = b = 83.0, c = 170.2
Resolution (Å)	40.00–2.90 (3.06–2.90)
Mosaicity (°)	0.67
No. of unique reflections	24302 (3582)
Completeness (%)	95.4 (96.8)
Redundancy	3.2
Rmerge† (%)	9.5 (52.6)
Average I/σ(I)	12.4 (3.1)
R factor‡ (%)	34.9
Rfree§ (%)	41.2

^† R _merge = × 100, where I is the intensity of a reflection and 〈I〉 is the average intensity.

^‡ R factor = | × 100.

^§ R _free is calculated from a randomly selected 5% of data for cross-validation.