3F03

Crystal structure of Pentaerythritol Tetranitrate Reductase complex with 1-nitrocyclohexene

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.2	293	25 % (w/v) PEG 3000, 0.1M trisodium citrate, 0.1M cacodylic acid pH 6.2, 17 % (v/v) isopropanol , VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.28	45.97

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 57.338	α = 90
b = 70.295	β = 90
c = 89.016	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		2008-04-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-1	0.93	ESRF	ID14-1

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	1.2	44.432	99.7	0.076	0.076	7.05	3.4		112379

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	1.26	99.5		0.48	0.48	1.4	3.3	16224

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		THROUGHOUT	1.34	15	80902	4075	99.48	0.116	0.115	0.145	RANDOM	11.079

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]
1.4			-0.44		-0.96

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.533
r_dihedral_angle_4_deg	14.764
r_dihedral_angle_3_deg	12.204
r_sphericity_free	8.017
r_dihedral_angle_1_deg	6.038
r_sphericity_bonded	4.431
r_scangle_it	3.49
r_scbond_it	2.566
r_mcangle_it	1.832
r_angle_refined_deg	1.555
r_mcbond_it	1.442
r_rigid_bond_restr	1.285
r_angle_other_deg	1.049
r_mcbond_other	0.695
r_symmetry_vdw_other	0.283
r_nbd_refined	0.219
r_nbd_other	0.211
r_nbtor_refined	0.18
r_xyhbond_nbd_refined	0.161
r_symmetry_hbond_refined	0.128
r_chiral_restr	0.102
r_nbtor_other	0.087
r_symmetry_vdw_refined	0.069
r_bond_refined_d	0.014
r_gen_planes_refined	0.011
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2867
Nucleic Acid Atoms
Solvent Atoms	657
Heterogen Atoms	50

Software

Software
Software Name	Purpose
SCALA	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction