3C2H

Crystal Structure of SYS-1 at 2.6A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6	298	100 mM Hepes, 0.6 M Na/K Tartrate, 20 mM Glycine and 5mM DTT, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
4.19	70.61

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 203.5	α = 90
b = 95.048	β = 124.71
c = 149.39	γ = 90

Symmetry
Space Group	C 1 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	200	CCD	ADSC QUANTUM 315		2006-01-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.2	0.9796	ALS	8.2.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	2.6	50	97.5	0.065	10.5	3		70425	2	1

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.6	2.69	91.4		0.437		2.4	6527

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.6	49.57	72547	70332	3573	97.41	0.2466	0.247	0.245	0.286	RANDOM	60.547

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
-1.73		0.12	0.34		1.53

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.892
r_dihedral_angle_3_deg	17.85
r_dihedral_angle_4_deg	16.827
r_dihedral_angle_1_deg	5.003
r_scangle_it	2.964
r_scbond_it	1.843
r_mcangle_it	1.655
r_angle_refined_deg	1.14
r_mcbond_it	0.907
r_nbtor_refined	0.306
r_nbd_refined	0.206
r_symmetry_vdw_refined	0.156
r_xyhbond_nbd_refined	0.141
r_symmetry_hbond_refined	0.14
r_chiral_restr	0.088
r_bond_refined_d	0.008
r_gen_planes_refined	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9770
Nucleic Acid Atoms
Solvent Atoms	39
Heterogen Atoms	37

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing
RESOLVE	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection