3BGU

Crystal structure of a dimeric ferredoxin-like protein of unknown function (tfu_0763) from thermobifida fusca yx at 1.50 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.5	277	NANODROP, 50.0% Ethylene glycol, 5.0% PEG 1000, 0.1M Sodium acetate pH 4.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.22	44.63

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 44.07	α = 90
b = 35.27	β = 104.09
c = 76.63	γ = 90

Symmetry
Space Group	P 1 2 1

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 315		2007-10-04	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.2	0.9537, 0.9798, 0.9797	ALS	8.2.2

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	1.5	27.206	91.4	0.044	11.24			35092		-3	21.273

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	1.5	1.55	61.1		0.397	1.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	MAD	THROUGHOUT	1.5	27.206	35091	1762	94.9	0.199	0.197	0.237	RANDOM	7.727

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]
0.48		-0.6	-0.2		-0.57

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.905
r_dihedral_angle_4_deg	14.898
r_dihedral_angle_3_deg	13.398
r_dihedral_angle_1_deg	11.611
r_scangle_it	5.568
r_scbond_it	4.488
r_mcangle_it	2.59
r_mcbond_it	1.798
r_angle_refined_deg	1.771
r_angle_other_deg	0.973
r_mcbond_other	0.529
r_symmetry_vdw_other	0.278
r_nbd_refined	0.205
r_symmetry_vdw_refined	0.205
r_nbd_other	0.197
r_nbtor_refined	0.187
r_xyhbond_nbd_refined	0.182
r_symmetry_hbond_refined	0.179
r_chiral_restr	0.111
r_nbtor_other	0.09
r_bond_refined_d	0.016
r_gen_planes_refined	0.008
r_bond_other_d	0.002
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1610
Nucleic Acid Atoms
Solvent Atoms	176
Heterogen Atoms	66

Software

Software
Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
SHELX	phasing
MolProbity	model building
XSCALE	data scaling
PDB_EXTRACT	data extraction
ADSC	data collection
XDS	data reduction
SHELXD	phasing
SHARP	phasing