2ZLU

Horse methemoglobin high salt, pH 7.0 (88% relative humidity)

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2MHB	PDB ENTRY 2MHB

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	LIQUID DIFFUSION	7	298	2.6M ammonium sulfate, 0.01M ammonium phosphate, pH 7.0, LIQUID DIFFUSION, temperature 298.0K

Crystal Properties
Matthews coefficient	Solvent content
2.79	55.91

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 108.184	α = 90
b = 63.336	β = 111.09
c = 54.409	γ = 90

Symmetry
Space Group	C 1 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	298	IMAGE PLATE	MARRESEARCH	OSMIC MIRROR	2003-04-15	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)	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	20	96.8	0.106	7.3	2.6		22583			39.2

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)
	2	2.07			0.445	2.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 2MHB	2	19.98	21427	1156	96.9	0.19471	0.19318	0.19	0.2215	0.22	RANDOM	32.896

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		0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.189
r_dihedral_angle_3_deg	15.758
r_dihedral_angle_4_deg	12.428
r_dihedral_angle_1_deg	5.002
r_scangle_it	3.722
r_scbond_it	2.43
r_mcangle_it	1.576
r_angle_refined_deg	1.318
r_mcbond_it	0.846
r_nbtor_refined	0.295
r_nbd_refined	0.198
r_symmetry_hbond_refined	0.175
r_symmetry_vdw_refined	0.155
r_xyhbond_nbd_refined	0.136
r_chiral_restr	0.094
r_bond_refined_d	0.014
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_refined
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	2176
Nucleic Acid Atoms
Solvent Atoms	164
Heterogen Atoms	86

Software

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