Table 1. Data-collection and refinement statistics.

Values in parentheses are for the highest resolution bin.

Data collection
Resolution (Å)	39.2–1.9 (2.0–1.9)
Completeness (%)	99.6 (100)
Average redundancy	4.9 (4.9)
I/σ(I)	7.7 (1.9)
Rmerge†	0.072 (0.386)
Space group	P21212
Unit-cell parameters (Å, °)	a = 65.5, b = 85.4, c = 59.7, α = β = γ = 90.0
Reflections	26897 (3897)
Wilson B factor (Å2)	22.9
Refinement statistics
Rwork	0.184 (0.234)
Rfree	0.199 (0.303)
Rwork reflections	25546
Rfree reflections	1351
No. of atoms
Protein	2567 [335 residues]
PLP	16
Solvent	281
Average B factors (Å2)
Protein	22.7
PLP	15.0
Solvent	31.1
R.m.s.d. from ideal geometry‡
Bond lengths (Å)	0.011
Bond angles (°)	1.4
Ramachandran plot (%)
Favored	97.6
Outliers	0.0
PDB code	3ht5

^† R _merge = .

^‡Engh & Huber (1991 ▶).