Table 1.

Data collection and refinement statistics

	T-crystal	C-crystal
Space group	P212121	P21
Unit cell, Å	72.13, 124.61, 178.49	87.32, 68.98, 116.36
β angle, °	—	108.52
Resolution, Å	50.0–2.4	50.0–1.95
No. unique reflections, completeness %	59,826 (93.8%)	88,320 (92.0%)
Redundancy	5.4	2.6
Rsym*, %	5.5	8.6
No. of protein atoms	10,852	10,956
No. of hetero atoms	30	52
No. of waters	0	1,335
Ligands present in electron density	l-tryptophan	Glutamyl, benzoate, pyruvate, Mg2+
R factor, %	24.8	18.1
Free R factor, %	31.8	24.6
rms deviation bond lengths, Å	0.018	0.014
rms deviation bond angles, °	2.08	1.84
rms deviation dihedral angles, °	25.19	24.92
rms deviation improper angles, °	1.35	1.20
Mean B factor, Å2	60.85	24.19

^*Σ_hklΣ_i|I_i − 〈I〉|/(Σ_hklΣ_iI_i)