3FOU

Low pH structure of the Rieske protein from Thermus thermophilus at 2.1 A

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1NYK	Protein A of 1NYK

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.21	298	PEG 8000, Na Cacodylate, Calcium acetate, Pr(acetate)3, pH 6.21, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.96	58.46

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 113.152	α = 90
b = 58.512	β = 90
c = 58.798	γ = 90

Symmetry
Space Group	P 21 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	IMAGE PLATE	RIGAKU RAXIS HTC	Mirrors	2008-07-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007 HF	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	58.8	99.7	0.088		4.5		23456

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.099	2.154	99.8		0.529		4.4	2311

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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	MOLECULAR REPLACEMENT	THROUGHOUT	Protein A of 1NYK	2.1	58.8	23456	22217	1205	99.61	0.20072	0.20072	0.19806	0.24601	RANDOM	37.758

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]
0.43			-0.48		0.05

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.266
r_dihedral_angle_3_deg	16.693
r_dihedral_angle_4_deg	14.699
r_dihedral_angle_1_deg	6.876
r_scangle_it	4.166
r_scbond_it	2.623
r_angle_refined_deg	1.862
r_mcangle_it	1.759
r_mcbond_it	1.079
r_metal_ion_refined	0.436
r_symmetry_hbond_refined	0.33
r_symmetry_vdw_refined	0.324
r_nbtor_refined	0.313
r_nbd_refined	0.219
r_xyhbond_nbd_refined	0.184
r_chiral_restr	0.117
r_symmetry_metal_ion_refined	0.072
r_bond_refined_d	0.02
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2312
Nucleic Acid Atoms
Solvent Atoms	114
Heterogen Atoms	24

Software

Software
Software Name	Purpose
HKL-2000	data collection
MOLREP	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling