Experiment: 3KOJ

Crystal structure of the SSB domain of Q5N255_SYNP6 protein from Synechococcus sp. Northeast Structural Genomics Consortium Target SnR59a.

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	Microbutch under parafin oil	7.5	291	4M sodium chloride, 0.1M HEPES pH 7.5 , Microbutch under parafin oil, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.97	58.65

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 70.843	α = 90
b = 113.028	β = 90
c = 73.382	γ = 90

Symmetry
Space Group	C 2 2 21

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		2009-11-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X4A	0.97903	NSLS	X4A

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	1.895	50	99.4	0.105	21.2	7	45223	44952

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)
	1.9	1.97	97		0.666	2.7	6.1	4508

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-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	1.895	36.691	1	44926	2292	99.32	0.202	0.2011	0.1991	0.2183	0.2195	RANDOM

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	17.803
f_angle_d	1.582
f_chiral_restr	0.106
f_bond_d	0.043
f_plane_restr	0.013

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1388
Nucleic Acid Atoms
Solvent Atoms	182
Heterogen Atoms

Software

Software
Software Name	Purpose
HKL-2000	data collection
SnB	phasing
PHENIX	model building
PHENIX	refinement
DENZO	data reduction
SCALEPACK	data scaling
PHENIX	phasing