2ZLX

Horse methemoglobin high salt, pH 7.0 (66% 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
2.42	49.28

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 108.445	α = 90
b = 63.398	β = 120.98
c = 102.59	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	2003-04-25	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	2.8	20	77.7	0.173	3.2	1.5		11560			44.9

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)
	2.8	2.9	82.2		0.344	2.1		1227

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 2MHB	2.8	19.54	10996	563	77.72	0.26157	0.25995	0.29349	RANDOM	32.351

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		-0.04	-0.02		-0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.149
r_dihedral_angle_3_deg	17.185
r_dihedral_angle_4_deg	15.978
r_mcangle_it	10.52
r_mcbond_it	7.81
r_dihedral_angle_1_deg	3.66
r_scangle_it	2.282
r_angle_refined_deg	1.448
r_scbond_it	1.433
r_symmetry_vdw_refined	0.34
r_nbtor_refined	0.317
r_nbd_refined	0.279
r_xyhbond_nbd_refined	0.194
r_symmetry_hbond_refined	0.193
r_chiral_restr	0.086
r_bond_refined_d	0.012
r_gen_planes_refined	0.007
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	4272
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	172

Software

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