2FRI

Horse Heart Myoglobin, Nitrite Adduct, Co-crystallized

X-RAY DIFFRACTION

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Starting Model(s)

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

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	30.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 35.223	α = 90
b = 28.592	β = 106.03
c = 62.841	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	IMAGE PLATE	RIGAKU RAXIS IV++	mirrors	2006-01-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH3R	1.5418

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	1.45	21.84	98.5	0.047	15.7		19587	16051	2	2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.45	1.5	98.5		0.247

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	1.6	19.96	15333	15204	846	99.16	0.14905	0.14905	0.14579	0.20644	RANDOM	16.345

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

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.316
r_dihedral_angle_4_deg	21.999
r_dihedral_angle_3_deg	12.919
r_sphericity_free	8.573
r_scangle_it	6.447
r_sphericity_bonded	5.11
r_scbond_it	4.825
r_dihedral_angle_1_deg	4.497
r_mcangle_it	3.748
r_rigid_bond_restr	2.947
r_mcbond_it	2.773
r_angle_refined_deg	1.135
r_nbtor_refined	0.303
r_nbd_refined	0.211
r_symmetry_vdw_refined	0.17
r_symmetry_hbond_refined	0.142
r_xyhbond_nbd_refined	0.134
r_chiral_restr	0.08
r_bond_refined_d	0.01
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1194
Nucleic Acid Atoms
Solvent Atoms	186
Heterogen Atoms	56

Software

Software
Software Name	Purpose
REFMAC	refinement
CrystalClear	data reduction
d*TREK	data scaling
MOLREP	phasing