3O20

Electron transfer complexes:experimental mapping of the Redox-dependent Cytochrome C electrostatic surface

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.4	300	Excess of NaNO3 and 10% of Ditionite, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 300K

Crystal Properties
Matthews coefficient	Solvent content
2.17	43.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 90.092	α = 90
b = 52.029	β = 123.07
c = 77.749	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						M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SEALED TUBE	OXFORD DIFFRACTION ENHANCE ULTRA

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	1.9	65.09					21667

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 1HRC	1.9	65.09	21667	1166	95.25	0.19712	0.19285	0.27616	RANDOM	14.267

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]
0.26		1.36	-1.31		2.53

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.061
r_dihedral_angle_4_deg	26.403
r_dihedral_angle_3_deg	16.915
r_dihedral_angle_1_deg	6.279
r_scangle_it	3.302
r_scbond_it	2.379
r_angle_refined_deg	1.794
r_mcangle_it	1.471
r_mcbond_it	1.085
r_nbtor_refined	0.305
r_symmetry_hbond_refined	0.268
r_symmetry_vdw_refined	0.247
r_xyhbond_nbd_refined	0.215
r_nbd_refined	0.207
r_chiral_restr	0.099
r_bond_refined_d	0.02
r_gen_planes_refined	0.011

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2478
Nucleic Acid Atoms
Solvent Atoms	365
Heterogen Atoms	201

Software

Software
Software Name	Purpose
AMoRE	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling