Experiment: 1QRA

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICRODIALYSIS	7.6	293	PROTEIN WAS CRYSTALLIZED FROM 26 % PEG 400, 10MM MGCL 264MM TRIS/HCL, PH 7.6, MICRODIALYSIS, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
1.91	35.47

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 39.567	α = 90
b = 39.567	β = 90
c = 159.255	γ = 120

Symmetry
Space Group	P 32 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	100	AREA DETECTOR	SIEMENS HI-STAR		1997-03-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	SIEMENS

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	1.6	50	99.8	0.069	30.7	9.1	196885	196885			16

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)
	1.6	1.7	58.8		0.217	5	1.9	4400

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R	5P21	1.6	10	21533	21533	1077	99.8	0.167	0.168	0.168	0.228

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]

Coordinate Error
Structure Solution Method	Refinement High Resolution	Refinement Low Resolution
		1580

RMS Deviations
Key	Refinement Restraint Deviation
s_non_zero_chiral_vol	0.06
s_similar_adp_cmpnt	0.05
s_zero_chiral_vol	0.04
s_angle_d	0.027
s_from_restr_planes	0.026
s_bond_d	0.009
s_similar_dist
s_anti_bump_dis_restr
s_rigid_bond_adp_cmpnt
s_approx_iso_adps

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1346
Nucleic Acid Atoms
Solvent Atoms	223
Heterogen Atoms	33

Software

Software
Software Name	Purpose
X-PLOR	model building
SHELXL-97	refinement
FRAMBO	data collection
XDS	data scaling
XSCALE	data scaling
X-PLOR	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.