ISDA: 2XS4

X-RAY DIFFRACTION

Crystallization Details

Method	pH	Temprature	Details
X-RAY DIFFRACTION	?	277	CRYSTALS OF MAGNESIUM-BOUND KLY18 WERE OBTAINED AT 4C BY MIXING PROTEIN SOLUTION PREINCUBATED WITH CALCIUM (AT 7.3MG ML-1 IN 5MM TRIS-HCL, PH8.0, 5MM CALCIUM CHLORIDE, 0.02% SODIUM AZIDE) AND 14% SODIUM POLYACRYLATE 5100, 20MM MAGNESIUM CHLORIDE, 0.1M HEPES, PH7.5 IN A VOLUME RATIO OF 1:3. THE LATTER CONDITIONS WERE SCALED UP TO THE MICROLITER RANGE WITH 24-WELL CRYSCHEM CRYSTALLIZATION DISHES (HAMPTON RESEARCH).

Unit Cell:

a: 85.790 Å b: 85.790 Å c: 53.480 Å α: 90.00° β: 90.00° γ: 90.00°

Symmetry:

Space Group: I 4

Crystal Properties:

Matthew's Coefficient: 2.57 Solvent Content: 52.18

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	1.70	50.00	20403	820	98.86	0.15878	0.18575	16.982

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
1.70	30.30	99.0	0.03	?	37.10	7.2	?	21225	?	0.0	18.9

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	1.70	1.79	95.9		?	10.80	4.4

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	ESRF BEAMLINE ID29	?	ESRF	ID29

Software