3BIJ

Crystal structure of protein GSU0716 from Geobacter sulfurreducens. Northeast Structural Genomics target GsR13

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	291	Protein solution: 10 mM Tris-HCl pH 7.5, 100 mM NaCl, 5 mM DTT. Reservoir solution: 100 mM Hepes pH 7.5, 1.45 M Na3 Citrate, 20 microgram/mL subtilisin, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.15	42.79

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 121.718	α = 90
b = 121.718	β = 90
c = 219.038	γ = 90

Symmetry
Space Group	I 4 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	MAR CCD 165 mm	Mirrors	2007-11-13	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X4C	0.97900	NSLS	X4C

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	2.5	30	99.8	0.074	0.06	42.49	14.8	54406	54406			46.7

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)
	2.5	2.59	100		0.442	0.357	4.6	13.4	5436

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	SAD	THROUGHOUT	2.5	19.98	2	54396	46781	4614	86	0.21	0.207	0.207	0.267	RANDOM	51.9

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]
-4.35			-4.35		8.71

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	23.3
c_angle_deg	1.3
c_improper_angle_d	0.81
c_bond_d	0.008
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot
c_mcbond_it
c_mcangle_it
c_scbond_it
c_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6059
Nucleic Acid Atoms
Solvent Atoms	141
Heterogen Atoms

Software

Software
Software Name	Purpose
CNS	refinement
MAR345	data collection
HKL-2000	data reduction
SCALEPACK	data scaling
SnB	phasing
RESOLVE	phasing