3P62

Wild-type pentaerythritol tetranitrate reductase containing a C-terminal 8-histidine tag

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1H50	PDB ENTRY 1H50

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.2	293	100mM sodium cacodylate, 100 mM sodium acetate, 16-18% isopropanol, pH 6.2, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.21	44.41

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 58.961	α = 90
b = 68.954	β = 90
c = 88.476	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 1		2009-09-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-4	1.07	ESRF	ID14-4

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	1.4	54.393	99.5	0.067	0.067	12.7	3.4	71252	71252

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Rrim I (All)	Rpim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.4	1.48	99.9		0.29	0.29	0.345	0.184	2.5	3.4	10357

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 1H50	1.4	27.97	71195	3605	99.34	0.1273	0.1258	0.1559	RANDOM	14.9066

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]
-0.01					0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.298
r_dihedral_angle_4_deg	16.168
r_dihedral_angle_3_deg	12.111
r_sphericity_free	5.991
r_dihedral_angle_1_deg	5.738
r_scangle_it	3.293
r_sphericity_bonded	2.698
r_scbond_it	2.457
r_mcangle_it	1.678
r_angle_refined_deg	1.436
r_mcbond_it	1.303
r_rigid_bond_restr	1.209
r_angle_other_deg	0.949
r_mcbond_other	0.578
r_symmetry_vdw_other	0.318
r_symmetry_hbond_refined	0.248
r_nbd_other	0.218
r_nbd_refined	0.217
r_nbtor_refined	0.178
r_xyhbond_nbd_refined	0.148
r_symmetry_vdw_refined	0.106
r_chiral_restr	0.086
r_nbtor_other	0.086
r_bond_refined_d	0.012
r_gen_planes_refined	0.009
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2776
Nucleic Acid Atoms
Solvent Atoms	698
Heterogen Atoms	35

Software

Software
Software Name	Purpose
SCALA	data scaling
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
ADSC	data collection
MOSFLM	data reduction