Experiment: 130L

STRUCTURES OF RANDOMLY GENERATED MUTANTS OF T4 LYSOZYME SHOW THAT PROTEIN STABILITY CAN BE ENHANCED BY RELAXATION OF STRAIN AND BY IMPROVED HYDROGEN BONDING VIA BOUND SOLVENT

X-RAY DIFFRACTION

Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.79	55.95

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 61	α = 90
b = 61	β = 90
c = 96.8	γ = 120

Symmetry
Space Group	P 32 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

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	Mean Isotropic B
X-RAY DIFFRACTION		1.7				0.164		0.1586

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
t_angle_deg	2.6
t_bond_d	0.018
t_dihedral_angle_d
t_incorr_chiral_ct
t_pseud_angle
t_trig_c_planes
t_gen_planes
t_it
t_nbd

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1291
Nucleic Acid Atoms
Solvent Atoms	165
Heterogen Atoms	10

Software

Software
Software Name	Purpose
TNT	refinement