2RHA

Crystal structure of a predicted dna-binding transcriptional regulator (saro_1072) from novosphingobium aromaticivorans dsm at 2.10 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5	277	NANODROP, 1.6M (NH4)2SO4, 0.1M Citrate pH 5.0, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
6.01	79.53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 102.837	α = 90
b = 102.837	β = 90
c = 111.276	γ = 90

Symmetry
Space Group	P 43 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	MARMOSAIC 325 mm CCD	Flat mirror (vertical focusing)	2007-07-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	1.00000	SSRL	BL11-1

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	2.1	29.185	99.8	0.081	0.081	6.8	4.8		35346			39.59

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	2.1	2.15	100		0.816	0.816	0.9	4.9	2560

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 2QTQ chain A	2.1	29.185	35315	1772	99.65	0.172	0.17	0.202	RANDOM	35.675

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]
-1.16			-1.16		2.32

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.005
r_dihedral_angle_4_deg	22.999
r_dihedral_angle_3_deg	14.614
r_scangle_it	8.367
r_scbond_it	6.549
r_dihedral_angle_1_deg	5.285
r_mcangle_it	3.212
r_mcbond_it	2.438
r_angle_refined_deg	1.649
r_angle_other_deg	1.061
r_mcbond_other	0.481
r_symmetry_vdw_other	0.315
r_symmetry_hbond_refined	0.243
r_nbd_refined	0.212
r_nbd_other	0.197
r_xyhbond_nbd_refined	0.191
r_nbtor_refined	0.173
r_symmetry_vdw_refined	0.143
r_chiral_restr	0.1
r_nbtor_other	0.085
r_bond_refined_d	0.017
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1612
Nucleic Acid Atoms
Solvent Atoms	202
Heterogen Atoms	88

Software

Software
Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
MolProbity	model building
SCALA	data scaling
PDB_EXTRACT	data extraction
MAR345	data collection
MOSFLM	data reduction
EPMR	phasing