1YCA

DISTAL POCKET POLARITY IN LIGAND BINDING TO MYOGLOBIN: DEOXY AND CARBONMONOXY FORMS OF A THREONINE68 (E11) MUTANT INVESTIGATED BY X-RAY CRYSTALLOGRAPHY AND INFRARED SPECTROSCOPY

X-RAY DIFFRACTION

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Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 124.2	α = 90
b = 42.5	β = 92.2
c = 92.1	γ = 90

Symmetry
Space Group	P 1 21 1

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		2.9	8	17767			0.189

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	40.55
p_staggered_tor	21.61
p_scangle_it	3.032
p_planar_tor	2.643
p_scbond_it	1.953
p_mcangle_it	1.496
p_mcbond_it	0.909
p_xhyhbond_nbd	0.227
p_multtor_nbd	0.224
p_singtor_nbd	0.215
p_chiral_restr	0.144
p_planar_d	0.079
p_angle_d	0.054
p_bond_d	0.02
p_plane_restr	0.015
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	2394
Nucleic Acid Atoms
Solvent Atoms	107
Heterogen Atoms	90

Software

Software
Software Name	Purpose
PROLSQ	refinement