4U9D

Crystal Structure of the Zn-directed tetramer of the engineered cyt cb562 variant, AB3

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		298	18% PEG 400 in 20 mM Tris (pH 8.5) and 0.2 M MgCl2

Crystal Properties
Matthews coefficient	Solvent content
2.18	43.57

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.83	α = 90
b = 54.83	β = 90
c = 237.82	γ = 120

Symmetry
Space Group	P 61

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	MARMOSAIC 325 mm CCD		2012-01-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.98	SSRL	BL9-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.5	47.48					13889

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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		THROUGHOUT	2.5	47.48	13888	679	99.83	0.2409	0.238	0.2958	RANDOM	70.973

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]
2.36	1.18		2.36		-7.67

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	42.623
r_dihedral_angle_4_deg	15.623
r_dihedral_angle_3_deg	14.459
r_dihedral_angle_1_deg	4.021
r_mcangle_it	1.967
r_mcbond_it	1.115
r_mcbond_other	1.115
r_angle_refined_deg	0.935
r_angle_other_deg	0.695
r_chiral_restr	0.069
r_bond_refined_d	0.005
r_gen_planes_refined	0.003
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3312
Nucleic Acid Atoms
Solvent Atoms	38
Heterogen Atoms	180

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction