Experiment: 4HIL

1.25A Resolution Structure of Rat Type B Cytochrome b5

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3MUS	PDB entry 3MUS

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	6.5	293	30% (w/v) PEG 8000, 100 sodium cacodylate, 200 mM sodium acetate, pH 6.5, vapor diffusion, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.33	47.19

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 38.609	α = 90
b = 67.847	β = 90
c = 70.342	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	PIXEL	DECTRIS PILATUS 6M		2011-06-20		SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 17-ID	1.0000	APS	17-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym I (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	1.25	48.833	100	0.066	13.4	6.4	51942	51942		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.25	1.32	100		0.757	2.5	6.2	7483

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 3MUS	1.25	35.171	1.36	51871	51871	2643	99.95	0.1379	0.1371	0.1447	0.1522	0.1581	RANDOM	15.8343

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]
0.9117			-5.0101		4.0984

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	17.86
f_angle_d	1.328
f_chiral_restr	0.071
f_bond_d	0.011
f_plane_restr	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1328
Nucleic Acid Atoms
Solvent Atoms	233
Heterogen Atoms	87

Software

Software
Software Name	Purpose
SCALA	data scaling
MOLREP	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
JDirector	data collection
XDS	data reduction