2FRJ

Nitrosyl Horse Heart Myoglobin, Nitrite/Dithionite Method

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.4	295	Ammonium Sulfate, Tris-HCl, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
1.8	32.4

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 35.497	α = 90
b = 28.795	β = 105.96
c = 63.257	γ = 90

Symmetry
Space Group	P 1 21 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		2005-02-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X29A	1.0	NSLS	X29A

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	50	91.4	0.052	17.8		30537	28869	2	2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.3	1.333	70.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1NPF	1.3	9.78	28983	27400	1469	94.54	0.17954	0.17954	0.17731	0.22012	RANDOM	20.71

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]
0.3		-0.09	0.32		-0.67

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.726
r_dihedral_angle_4_deg	15.331
r_dihedral_angle_3_deg	13.706
r_sphericity_free	8.779
r_scangle_it	8.052
r_scbond_it	6.347
r_sphericity_bonded	6.166
r_dihedral_angle_1_deg	4.365
r_rigid_bond_restr	3.859
r_mcangle_it	3.662
r_mcbond_it	2.851
r_angle_refined_deg	1.189
r_nbtor_refined	0.306
r_nbd_refined	0.204
r_symmetry_vdw_refined	0.161
r_xyhbond_nbd_refined	0.122
r_symmetry_hbond_refined	0.122
r_chiral_restr	0.089
r_metal_ion_refined	0.079
r_bond_refined_d	0.009
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1194
Nucleic Acid Atoms
Solvent Atoms	137
Heterogen Atoms	55

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
MOLREP	phasing