1IRV

CYTOCHROME C ISOZYME 1, REDUCED, MUTANT WITH ILE 75 REPLACED BY MET AND CYS 102 REPLACED BY THR

X-RAY DIFFRACTION

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Crystallization

Crystal Properties
Matthews coefficient	Solvent content
1.91	35.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 36.55	α = 90
b = 36.55	β = 90
c = 138.59	γ = 90

Symmetry
Space Group	P 43 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray		DIFFRACTOMETER	ENRAF-NONIUS FAST		1992-04-26	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
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	6	100		1		8110

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-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION		1.9	6	2	3645		100	0.222		18.2

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	26.3
p_transverse_tor	19.6
p_scangle_it	4.118
p_mcangle_it	2.989
p_scbond_it	2.666
p_planar_tor	2.6
p_mcbond_it	1.94
p_chiral_restr	0.286
p_xyhbond_nbd	0.262
p_multtor_nbd	0.242
p_singtor_nbd	0.236
p_planar_d	0.064
p_angle_d	0.05
p_bond_d	0.024
p_plane_restr	0.018
p_angle_deg
p_hb_or_metal_coord
p_xhyhbond_nbd
p_orthonormal_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	851
Nucleic Acid Atoms
Solvent Atoms	29
Heterogen Atoms	48

Software

Software
Software Name	Purpose
PROLSQ	refinement
IN-HOUSE	data reduction