Experiment: 3HX1

Crystal structure of the Slr1951 protein from Synechocystis sp. Northeast Structural Genomics Consortium Target SgR167A

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	Microbatch under oil	8	291	40 % PEG 1000, 0.1M potassium phosphate monobasic, 0.1M TrisHCl, pH 8.0, Microbatch under oil, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.17	43.37

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.13	α = 90
b = 56.13	β = 90
c = 290.868	γ = 120

Symmetry
Space Group	P 61 2 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	MARMOSAIC 325 mm CCD		2009-06-14	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.97931, 0.97907, 0.91162	SSRL	BL9-2

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	2.5	50	99.4	0.141	21.8	9.4	17900	17793			32

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	2.5	2.59	99.6		0.629	2.3	5.4	1753

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	2.5	37.3	1	15877	802	89.4	0.232	0.2305	0.244	0.2478	RANDOM	54.5

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]
-11.66			-11.66		23.32

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	27.4
c_angle_deg	1.5
c_improper_angle_d	0.71
c_bond_d	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1647
Nucleic Acid Atoms
Solvent Atoms	46
Heterogen Atoms

Software

Software
Software Name	Purpose
CNS	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
HKL-2000	data reduction
SCALEPACK	data scaling
SHELXDE	phasing
REFMAC	refinement