3TOL

Crystal structure of an engineered cytochrome cb562 that forms 1D, Zn-mediated coordination polymers

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	298	20% PEG 3350, 2.1 mM ZnCl2, 20mM CaCl2 and 100 mM BISTRIS, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.67	53.98

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.546	α = 90
b = 69.506	β = 90
c = 126.567	γ = 90

Symmetry
Space Group	P 21 21 21

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	ADSC QUANTUM 315r		2008-08-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL7-1	0.976	SSRL	BL7-1

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	63.28	99			34407	34063		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	2.11	99.8		0.349	0.349	3.4	3.6	4949

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	63.28	34407	34022	2442	98.71	0.1939	0.19	0.2453	RANDOM	29.6585

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]
-0.07			-0.14		0.2

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.86
r_dihedral_angle_4_deg	23.02
r_dihedral_angle_3_deg	16.454
r_dihedral_angle_1_deg	4.665
r_scangle_it	2.949
r_scbond_it	1.777
r_angle_refined_deg	1.259
r_mcangle_it	0.844
r_mcbond_it	0.462
r_chiral_restr	0.082
r_bond_refined_d	0.012
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3240
Nucleic Acid Atoms
Solvent Atoms	363
Heterogen Atoms	178

Software

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