3TOM

Crystal structure of an engineered cytochrome cb562 that forms 2D, Zn-mediated sheets

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	6	298	8 mM ZnCl2 and 200 mM BISTRIS, pH 6, VAPOR DIFFUSION, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.49	50.55

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 95.69	α = 90
b = 37.843	β = 112.61
c = 138.489	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	100	CCD	MARMOSAIC 325 mm CCD		2011-04-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	.979	SSRL	BL9-2

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	2.3	127.844	94.3	0.108	8.2	3.5	19645	19645		3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.3	2.42	92.8		0.489	0.489	1.5	3.6	2772

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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	2.3	47.8	18379	17350	1283	94.41	0.2153	0.2096	0.2858	RANDOM	36.7152

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]
-0.43		-0.77	0.06		-0.22

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	44.314
r_dihedral_angle_4_deg	20.564
r_dihedral_angle_3_deg	18.847
r_dihedral_angle_1_deg	5.166
r_scangle_it	2.234
r_angle_refined_deg	1.372
r_scbond_it	1.372
r_mcangle_it	0.727
r_mcbond_it	0.394
r_chiral_restr	0.087
r_bond_refined_d	0.012
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3240
Nucleic Acid Atoms
Solvent Atoms	178
Heterogen Atoms	178

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
Blu-Ice	data collection