2RI4

Crystal Structure determination of Goat Methemoglobin at 2.7 Angstrom

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	293	Unbuffered low-salt concentration using PEG 3350, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.41	49.05

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.692	α = 110.64
b = 68.325	β = 91.9
c = 95.597	γ = 108.94

Symmetry
Space Group	P 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	293	IMAGE PLATE	MAR scanner 345 mm plate		2006-08-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200	1.5417

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	2.7	30	90.38	0.14		1.8	31524	31524

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	2.7	2.8	93.4		0.9

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1G08, Bovine carbonmonoxy hemoglobin	2.7	22.5	31524	26018	2863	90.46	0.23371	0.22544	0.30815	RANDOM	41.781

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	0.01	-0.02	-0.01	0.02

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.379
r_dihedral_angle_3_deg	23.116
r_dihedral_angle_4_deg	21.513
r_dihedral_angle_1_deg	8.583
r_scangle_it	2.707
r_scbond_it	1.885
r_angle_refined_deg	1.818
r_mcangle_it	1.163
r_mcbond_it	0.806
r_symmetry_vdw_refined	0.369
r_nbtor_refined	0.32
r_nbd_refined	0.292
r_symmetry_hbond_refined	0.226
r_xyhbond_nbd_refined	0.225
r_metal_ion_refined	0.224
r_chiral_restr	0.111
r_bond_refined_d	0.015
r_gen_planes_refined	0.006
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8600
Nucleic Acid Atoms
Solvent Atoms	51
Heterogen Atoms	344

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345dtb	data collection
AUTOMAR	data reduction
MOLREP	phasing