Experiment: 1SRQ

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.1	277	PEG 3350, MPD, magnesium sulfate, HEPES, pH 7.1, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
4	69.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 170.7	α = 90
b = 224.5	β = 90
c = 48.7	γ = 90

Symmetry
Space Group	P 21 21 2

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	ADSC QUANTUM 4	mirrors	2003-04-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-1	0.934	ESRF	ID14-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2.9	20	98.9	0.053	0.06	17.2	4.9		42290		-3	71

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.9	2.972	99.8		0.336	0.345	3.86	4.8	4032

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	SIRAS	THROUGHOUT	2.9	14.99	40001	40001	2103	99.44	0.234	0.234	0.23179	0.276	RANDOM	23.265

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]
-5.69			4.37		1.31

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	4
r_scangle_it	1.921
r_angle_refined_deg	1.813
r_scbond_it	1.212
r_mcangle_it	0.688
r_symmetry_vdw_refined	0.386
r_mcbond_it	0.375
r_nbd_refined	0.247
r_xyhbond_nbd_refined	0.173
r_chiral_restr	0.136

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	4
r_scangle_it	1.921
r_angle_refined_deg	1.813
r_scbond_it	1.212
r_mcangle_it	0.688
r_symmetry_vdw_refined	0.386
r_mcbond_it	0.375
r_nbd_refined	0.247
r_xyhbond_nbd_refined	0.173
r_chiral_restr	0.136
r_symmetry_hbond_refined	0.122
r_bond_refined_d	0.015
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8168
Nucleic Acid Atoms
Solvent Atoms	47
Heterogen Atoms	26

Software

Software
Software Name	Purpose
XDS	data scaling
XDS	data reduction
SHARP	phasing
REFMAC	refinement

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.