ISDA

X-RAY DIFFRACTION

Crystallization Details

Method	pH	Temprature	Details
X-RAY DIFFRACTION	7.0	298	Prior to crystallization the enzyme was dialyzed into 40 mM KH2PO4, 2.0 mM 2-mercaptoethanol, 0.2 mM EDTA, pH 7.0 for 24 hours. Single crystals of the K244N mutant were obtained by mixing a 20 mg/ml filtered solution (0.22 m) of the K244N enzyme with a solution of 17% (w/v) PEG 1450, 50 mM malonate, 0.2 mM EDTA, 1 mM sodium azide and 20 mM Bis-Tris buffer pH 7.0 in a 1:1 ratio (v/v), VAPOR DIFFUSION, HANGING DROP, temperature 298K

Unit Cell:

a: 125.670 Å b: 125.670 Å c: 198.200 Å α: 90.00° β: 90.00° γ: 120.00°

Symmetry:

Space Group: H 3

Crystal Properties:

Matthew's Coefficient: 3.04 Solvent Content: 59.22

Refinement Statistics

Diffraction ID	Structure Solution Method	Cross Validation Method	Resolution Limit (High)	Resolution Limit (Low)	Number of Reflections (Observed)	Number of Reflections (R-free)	Percent Reflections (Observed)	R-Work	R-Free	Mean Isotropic
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.60	29.55	30529	1589	89.44	0.20186	0.23117	34.638

Data Collection

Overall

Resolution Limit (High)	Resolution Limit (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
2.59	30.0	?	0.039	?	13.3	6.5	36343	34988	0.00	0.00	?

Highest Resolution Shell

#	Resolution Limits (Low)	Resolution Limits (High)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.59	2.68	89.8	?	?	12.2	2.62	?

Diffraction

Diffraction experiment

Crystal ID	Scattering Type	Data Collection Temprature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1		100 K

Radiation Source

Source	Type	Wavelength List	Synchrotron Site	Beamline
SYNCHROTRON	NSLS BEAMLINE X12C	1.00704	NSLS	X12C

Software