1V4B

The crystal structure of AzoR (Azo Reductase) from Escherichia coli: Oxidized form

X-RAY DIFFRACTION

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Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.34	47.06

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 92.185	α = 90
b = 92.185	β = 90
c = 51.848	γ = 90

Symmetry
Space Group	P 42 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		CCD	ADSC QUANTUM 4		2000-06-23	M	SINGLE WAVELENGTH
2	1		CCD	ADSC QUANTUM 4		2000-06-25
3	1		CCD	MARRESEARCH		2002-03-25

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PHOTON FACTORY BEAMLINE BL-6A	1.00	Photon Factory	BL-6A
2	SYNCHROTRON	SPRING-8 BEAMLINE BL41XU	1.00	SPring-8	BL41XU

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.8	64.55					20095

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	SIRAS	THROUGHOUT	1.8	21.95	20095	1091	99.59	0.19424	0.19215	0.23426	RANDOM	18.767

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]
0.74			0.74		-1.48

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	18.646
r_dihedral_angle_1_deg	6.043
r_scangle_it	4.556
r_scbond_it	3.021
r_mcangle_it	1.968
r_angle_refined_deg	1.963
r_mcbond_it	1.255
r_angle_other_deg	1.062
r_nbd_other	0.262
r_symmetry_vdw_other	0.223
r_nbd_refined	0.202
r_xyhbond_nbd_refined	0.169
r_xyhbond_nbd_other	0.157
r_chiral_restr	0.13
r_symmetry_vdw_refined	0.109
r_nbtor_other	0.088
r_symmetry_hbond_refined	0.067
r_bond_refined_d	0.024
r_bond_other_d	0.021
r_gen_planes_refined	0.01
r_gen_planes_other	0.003
r_dihedral_angle_2_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1493
Nucleic Acid Atoms
Solvent Atoms	144
Heterogen Atoms	35

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
SOLVE	phasing