1CRC

CYTOCHROME C AT LOW IONIC STRENGTH

X-RAY DIFFRACTION

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Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.18	43.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.62	α = 90
b = 105.01	β = 90
c = 35.11	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		AREA DETECTOR	XENTRONICS		1992-07-01	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1

Data Collection

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION		2.08	10	2	7684		60	0.177			22.24

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]

RMS Deviations
Key	Refinement Restraint Deviation
p_staggered_tor	22
p_orthonormal_tor	20
p_planar_tor	2
p_multtor_nbd	0.354
p_xhyhbond_nbd	0.323
p_singtor_nbd	0.244
p_chiral_restr	0.182
p_mcangle_it	0.1
p_scangle_it	0.1
p_mcbond_it	0.08
p_scbond_it	0.07
p_planar_d	0.06
p_angle_d	0.057
p_bond_d	0.017
p_plane_restr	0.012
p_angle_deg
p_hb_or_metal_coord
p_xyhbond_nbd
p_transverse_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1727
Nucleic Acid Atoms
Solvent Atoms	121
Heterogen Atoms	86

Software

Software
Software Name	Purpose
PROFFT	refinement
PROLSQ	refinement
XENGEN	data reduction