Experiment: 3C81

Mutant K85A of T4 lysozyme in wildtype background at room temperature

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1L63

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.7		2 M NA/K PHOSPHATE PH 6.7 550 MM NACL 50 MM REDUCED BME, 50 MM OXIDIZED BME , VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K, pH 6.70

Crystal Properties
Matthews coefficient	Solvent content
2.81	56.18

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 60.99	α = 90
b = 60.99	β = 90
c = 97.29	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	AREA DETECTOR	SDMS	MIRRORS	1998-06-24	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)	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	1.85	22.22	93	0.08				17772

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.85	1.94	85.8

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FWT-FMUT DIFFERENCE MAPS	1L63	1.85	22.22	18464	17772		96	0.19	0.19		0.1776

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	1.06
t_bond_d	0.013
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	1334
Nucleic Acid Atoms
Solvent Atoms	89
Heterogen Atoms	6

Software

Software
Software Name	Purpose
TNT	refinement
SDMS	data reduction
SDMS	data scaling
TNT	phasing