1SNR

Nitric oxide bound to Cu nitrite reductase

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4	291	PEG4000, sodium acetate, VAPOR DIFFUSION, HANGING DROP, temperature 291K, pH 4.0

Crystal Properties
Matthews coefficient	Solvent content
2.08	40.95

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 61.726	α = 90
b = 102.595	β = 90
c = 145.652	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	IMAGE PLATE	MARRESEARCH		2003-02-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL7-1	1.08	SSRL	BL7-1

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	1.3	25	90.2	0.044	15.9	7.6					15.9

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.3	1.36	82.6

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	FOURIER SYNTHESIS	THROUGHOUT	1.31	34.3	191015	10037	90.35	0.12469	0.1238	0.14136	RANDOM	13.148

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]
0.1			-0.1

RMS Deviations
Key	Refinement Restraint Deviation
r_sphericity_free	9.856
r_dihedral_angle_1_deg	7.261
r_sphericity_bonded	3.822
r_scangle_it	3.685
r_scbond_it	2.464
r_mcangle_it	1.662
r_angle_refined_deg	1.418
r_mcbond_it	1.091
r_rigid_bond_restr	0.841
r_angle_other_deg	0.785
r_symmetry_vdw_other	0.282
r_nbd_other	0.251
r_symmetry_vdw_refined	0.221
r_nbd_refined	0.203
r_xyhbond_nbd_refined	0.128
r_symmetry_hbond_refined	0.126
r_chiral_restr	0.088
r_nbtor_other	0.081
r_gen_planes_other	0.014
r_bond_refined_d	0.01
r_gen_planes_refined	0.009
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7687
Nucleic Acid Atoms
Solvent Atoms	1099
Heterogen Atoms	51

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling