Experiment: 2QSQ

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7	277	3.0 M NaCl, 100 mM Tris-HCl pH 7.0, temperature 277K, VAPOR DIFFUSION

Crystal Properties
Matthews coefficient	Solvent content
5.63	78.14

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 132.531	α = 90
b = 132.531	β = 90
c = 82.762	γ = 120

Symmetry
Space Group	H 3

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	MARRESEARCH		2006-04-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.1	1.00	ALS	5.0.1

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	1.95	50	97.8	0.094	15	4.4	38912	38912

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	1.95	2.02	83.4		0.802	1	2.5	3283

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION		THROUGHOUT	1.95	10	38432	38432	1936	97.97	0.181	0.181	0.18	0.19	0.203	0.21	RANDOM	41.014

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]
-0.3	-0.15		-0.3		0.46

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.758
r_dihedral_angle_4_deg	18.371
r_dihedral_angle_3_deg	14.568
r_dihedral_angle_1_deg	6.215
r_scangle_it	2.902
r_scbond_it	1.925
r_mcangle_it	1.396
r_angle_refined_deg	1.34
r_mcbond_it	0.834
r_nbtor_refined	0.309

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.758
r_dihedral_angle_4_deg	18.371
r_dihedral_angle_3_deg	14.568
r_dihedral_angle_1_deg	6.215
r_scangle_it	2.902
r_scbond_it	1.925
r_mcangle_it	1.396
r_angle_refined_deg	1.34
r_mcbond_it	0.834
r_nbtor_refined	0.309
r_symmetry_hbond_refined	0.257
r_symmetry_vdw_refined	0.209
r_nbd_refined	0.202
r_xyhbond_nbd_refined	0.157
r_chiral_restr	0.102
r_bond_refined_d	0.013
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1743
Nucleic Acid Atoms
Solvent Atoms	193
Heterogen Atoms	26

Software

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

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.