Experiment: 3ONZ

Human tetrameric hemoglobin: proximal nitrite ligand at beta

X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	LIQUID DIFFUSION	7.1	295	sodium phospahte, potassium phosphate, toluene, nitrite, hemoglobin, pH 7.1, LIQUID DIFFUSION, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.21	44.41

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 53.27	α = 90
b = 53.27	β = 90
c = 193.62	γ = 90

Symmetry
Space Group	P 41 21 2

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 II	Osmic	2007-10-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.09	46.7	95.5		9.4	16567	16567	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	2.09	2.2	90.7		0.405	4.6	9.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	1LJW	2.087	26.635	1.42	16567	16540	856	94.59	0.2212	0.2181	0.2114	0.2796	0.2733

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]
-0.6842			-0.6842		1.3683

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	18.428
f_angle_d	1.06
f_chiral_restr	0.064
f_bond_d	0.007
f_plane_restr	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2076
Nucleic Acid Atoms
Solvent Atoms	95
Heterogen Atoms	120

Software

Software
Software Name	Purpose
CrystalClear	data collection
PHASER	phasing
PHENIX	refinement
d*TREK	data reduction
d*TREK	data scaling