Experiment: 4DLH

Crystal Structure of the protein Q9HRE7 from Halobacterium salinarium at the resolution 1.9A, Northeast Structural Genomics Consortium (NESG) Target HsR50

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2LOK	pdb entry 2LOK

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	mocrobatch under oil	7.5	293	Protein solution: 100mM NaCl, 5mM DTT, 0.02% NaN3, 10mM Tris-HCl (pH 7.5) . Reservoir solution:KH2PO4 0.1M, HEPES 0.1M, PEG 8000 40%., mocrobatch under oil, temperature 293KK

Crystal Properties
Matthews coefficient	Solvent content
2.18	43.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 44.473	α = 90
b = 74.933	β = 90
c = 112.987	γ = 90

Symmetry
Space Group	P 21 21 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	mirrors	2008-04-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X4A	0.979	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	1.9	50	95.5	0.056	23.7	3		54970		-3	22.33

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	1.9	1.97	72.5		0.172		2.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	throughput	pdb entry 2LOK	1.9	38.244	1.34	29492	1499	96.51	0.176	0.174	0.1738	0.215	0.213	random	29.543

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]
-1.729			3.109		-1.379

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	12.665
f_angle_d	1.093
f_chiral_restr	0.079
f_bond_d	0.007
f_plane_restr	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2712
Nucleic Acid Atoms
Solvent Atoms	337
Heterogen Atoms

Software

Software
Software Name	Purpose
PHENIX	refinement
PDB_EXTRACT	data extraction
ADSC	data collection
HKL-2000	data reduction
SCALEPACK	data scaling
BALBES	phasing