Experiment: 2GW0

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	352D	THE FIRST QUADRUPLEX MOLECULE OF NDB ENTRY CODE UDF062 OR PDB ENTRY CODE 352D WITH THYMINES REMOVED.

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.5	277	CALCIUM CHLORIDE, DNA, DISTAMYCIN A, SODIUM CHLORIDE, MPD, SPERMINE TETRAHYDROCHLORIDE, SODIUM CACODYLATE BUFFER, VAPOR DIFFUSION, HANGING DROP, temperature 277K, pH 6.50

Crystal Properties
Matthews coefficient	Solvent content
1.63	24.79

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 27.357	α = 89.11
b = 27.911	β = 75.63
c = 34.969	γ = 79.7

Symmetry
Space Group	P 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	117	IMAGE PLATE	RIGAKU RAXIS IV	OSMIC FOCUSING MIRROR SYSTEM	2003-12-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200

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	1.55	25	87.1	0.061	27.28	2.85		12464		-2

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)
	1.55	1.61	80		0.2	8.62

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	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	MOLECULAR REPLACEMENT	THROUGHOUT	THE FIRST QUADRUPLEX MOLECULE OF NDB ENTRY CODE UDF062 OR PDB ENTRY CODE 352D WITH THYMINES REMOVED.	1.55	8	4	12330	1234	92.2	0.176	0.174		0.17	0.224	0.21	RANDOM	15.62

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
		1171

RMS Deviations
Key	Refinement Restraint Deviation
s_similar_adp_cmpnt	0.051
s_angle_d	0.028
s_anti_bump_dis_restr	0.019
s_from_restr_planes	0.013
s_bond_d	0.008
s_non_zero_chiral_vol	0.008
s_rigid_bond_adp_cmpnt	0.002
s_similar_dist
s_zero_chiral_vol
s_approx_iso_adps

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms
Nucleic Acid Atoms	968
Solvent Atoms	191
Heterogen Atoms	12

Software

Software
Software Name	Purpose
SHELXL-97	refinement
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
EPMR	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.