2HUK

Crystal structure of T4 Lysozyme V131C synthetic dimer

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1C6T	PDB entry 1C6T

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.5	295	20% PEG 8000, 0.1M Na Cacodylate, pH 6.5, 0.2M Ammonium Acetate, VAPOR DIFFUSION, HANGING DROP, temperature 295K, pH 6.50

Crystal Properties
Matthews coefficient	Solvent content
2.27	45.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 184.267	α = 90
b = 29.408	β = 97.39
c = 31.243	γ = 90

Symmetry
Space Group	C 1 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		IMAGE PLATE	RIGAKU RAXIS IV		2004-05-26	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 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	1.8	25	96.8	0.068	14.3			15287	2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.8	1.86	93.5		0.445	2.05

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 1C6T	2	25	2	11299	10730	567	97.8	0.181	0.178	0.24	RANDOM	14.05

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]
0.63		0.27	-1.03		0.48

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.557
r_dihedral_angle_4_deg	18.283
r_dihedral_angle_3_deg	15.324
r_dihedral_angle_1_deg	5.937
r_scangle_it	5.015
r_scbond_it	3.437
r_mcangle_it	1.754
r_angle_refined_deg	1.715
r_mcbond_it	1.216
r_symmetry_vdw_refined	0.36
r_nbtor_refined	0.297
r_nbd_refined	0.226
r_xyhbond_nbd_refined	0.191
r_symmetry_hbond_refined	0.158
r_chiral_restr	0.127
r_bond_refined_d	0.022
r_gen_planes_refined	0.008
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1316
Nucleic Acid Atoms
Solvent Atoms	94
Heterogen Atoms	20

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing