Experiment: 2B4Z

Crystal structure of cytochrome C from bovine heart at 1.5 A resolution.

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1CRC	PDB ENTRY 1CRC

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICROSEEDING	7	277	PEG 1000, SODIUM PHOSPHATE, pH 7.0, MICROSEEDING, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.314	44.79

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 36.84	α = 90
b = 54.48	β = 90
c = 55.33	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		CCD	ADSC QUANTUM 210		2005-07-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X6A	1.03320	NSLS	X6A

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	1.5	38				18439	17207			14.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1CRC	1.5	30.52	18439	17207	1697	93.3	0.196	0.196	0.218	0.2189	RANDOM	13.8

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]
-3.31			-2.46		5.76

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	19.2
c_scangle_it	2.54
c_scbond_it	1.69
c_mcangle_it	1.33
c_angle_deg	1.3
c_mcbond_it	0.87
c_improper_angle_d	0.77
c_bond_d	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	875
Nucleic Acid Atoms
Solvent Atoms	161
Heterogen Atoms	43

Software

Software
Software Name	Purpose
CNS	refinement
HKL-2000	data reduction
CCP4	data scaling
CNS	phasing