2SPN

A NOVEL SITE-DIRECTED MUTANT OF MYOGLOBIN WITH AN UNUSUALLY HIGH O2 AFFINITY AND LOW AUTOOXIDATION RATE

X-RAY DIFFRACTION

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Crystallization

Crystal Properties
Matthews coefficient	Solvent content
3.16	61.13

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 91.2	α = 90
b = 91.2	β = 90
c = 45.87	γ = 120

Symmetry
Space Group	P 6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION		1.7	5	9172			0.166

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]

RMS Deviations
Key	Refinement Restraint Deviation
p_orthonormal_tor	35.2
p_staggered_tor	17.1
p_scangle_it	4.551
p_planar_tor	3.1
p_scbond_it	2.97
p_mcangle_it	1.935
p_mcbond_it	1.443
p_xhyhbond_nbd	0.461
p_multtor_nbd	0.393
p_singtor_nbd	0.201
p_chiral_restr	0.183
p_planar_d	0.057
p_angle_d	0.032
p_plane_restr	0.026
p_bond_d	0.019
p_angle_deg
p_hb_or_metal_coord
p_xyhbond_nbd
p_transverse_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1228
Nucleic Acid Atoms
Solvent Atoms	124
Heterogen Atoms	50

Software

Software
Software Name	Purpose
PROFFT	refinement