Table I.

Data Collection and Structure Refinement Statistics

Data collection	Plk2-PBD
Space group	/23
Unit cell dimensions
a, b, c (Å)	152.29, 152.29, 152.29
α, β, γ (°)	90, 90, 90
Wavelength (Å)	0.9795
Resolution (Å)	50.0–2.7 (2.75–2.70)b
Rsyma	7.2 (35.7)
I/σ (I)	48.1 (5.1)
Completeness (%)	99.6 (99.4)
Redundancy	22.1 (7.9)
Refinement
Resolution (Å)	50.0–2.7
No. of reflections	16,221
Rworkc/Rfree	22.5/26.3
No. atoms
Protein	3467
Water and ions	29
RMS deviations
Bond lengths (Å)	0.004
Bond angles (°)	1.048
Ramachandran plot (%)
Most favored region	96.0
Additionally allowed region	4.0
Generously allowed region
Average B-values (Å2)
Protein	49.1
Water and ions	48.3

^a$R_{\text{sym}}=\sum \left|I_{\text{obs}}-I_{\text{avg}}\right|/I_{\text{obs}}$, where I_obs is the observed intensity of individual reflection and I_avg is average over symmetry equivalents.

^bThe numbers in parentheses are statistics from the highest resolution shell.

^c$R_{\text{work}}=\sum \Vert F_{\text{o}}|-|F_{\text{c}}||/\sum \left|F_{\text{o}}\right|$, where |F_o| and |F_c| are the observed and calculated structure factor amplitudes, respectively. R_free was calculated with 10% of the data.