Experiment: 1Q8Z

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1HOW	PDB code 1HOW

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.5	298	1.5M (NH4)2SO4, 100mM Na Acetate pH 4.5, 15% Ethylene Glycol. Crystals then dialyzed into 30% PEG 400 and 100mM Na Acetate pH 4.5, hanging drop, crystals soaked into low salt buffer, temperature 298.0K

Crystal Properties
Matthews coefficient	Solvent content
2.55	51.76

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 72.99	α = 90
b = 88.701	β = 90
c = 135.6	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	94	CCD	SBC-2		2002-06-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	1.54	APS	19-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.35	20	91.6	0.067	10.3		37306	34172

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.35	2.43	85.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION		PDB code 1HOW	2.35	20	37319	34172	1424	91.6	0.221	0.23	0.259	0.23

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]
-10.814			5.444		5.37

RMS Deviations
Key	Refinement Restraint Deviation
c_scangle_it	2.869
c_mcangle_it	2.224
c_scbond_it	1.92
c_angle_deg	1.33
c_mcbond_it	1.324
c_bond_d	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5788
Nucleic Acid Atoms
Solvent Atoms	137
Heterogen Atoms	18

Software

Software
Software Name	Purpose
CNS	refinement
SCALEPACK	data scaling
XTALVIEW	refinement
HKL-2000	data collection
HKL-2000	data reduction

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.