3C8Q

Contribution of all 20 amino acids at site 96 to the stability and structure of T4 lysozyme

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		ISOMORPHOUS WT L163.PDB

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.7		2M NA/K PHOSPHATE PH 6.7, 50 MM OXIDIZED BME, 50 MM REDUCED BME, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 276K, pH 6.70

Crystal Properties
Matthews coefficient	Solvent content
2.81	56.18

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 60.96	α = 90
b = 60.96	β = 90
c = 97.46	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	298	IMAGE PLATE	RIGAKU RAXIS IV	MIRRORS	1998-01-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	1.63	20	99	0.08	0.08		4		26629		2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR SUBSTITUTION	ISOMORPHOUS WITH CRYSTAL OF WILDTYPE. VALIDATED WITH FWT-FMUT MAP	ISOMORPHOUS WT L163.PDB	1.64	20	26836	26629		99	0.186	0.186	0.186	0.186	UNNECESSARY

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	1.347
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	1337
Nucleic Acid Atoms
Solvent Atoms	74
Heterogen Atoms	7

Software

Software
Software Name	Purpose
X-PLOR	model building
TNT	refinement
MOSFLM	data reduction
SCALA	data scaling
X-PLOR	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.