3MUS

2A Resolution Structure of Rat Type B Cytochrome b5

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.8	277	30%PEG8K, 0.2M MgAc, 0.1M Hepes, pH 6.8, EVAPORATION, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.83	59.38

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 46.26	α = 90
b = 71.13	β = 90
c = 72.8	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	297	DIFFRACTOMETER	SIEMENS FOUR-CIRCLE	GRAPHITE MONOCHROMATOR	1997-06-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	SIEMENS

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	1.98	10.3	97	0.063				14715		-3	23

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1AWP	2	10	16822	14596	1507	86.8	0.176	0.176	0.223	RANDOM	30.3

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]
-12.211			5.822		6.39

RMS Deviations
Key	Refinement Restraint Deviation
c_mcangle_it	2.07
c_angle_deg	1.58
c_mcbond_it	1.22
c_bond_d	0.017
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d
c_improper_angle_d_na
c_improper_angle_d_prot
c_scbond_it
c_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1380
Nucleic Acid Atoms
Solvent Atoms	133
Heterogen Atoms	86

Software

Software
Software Name	Purpose
SAINT	data scaling
AMoRE	phasing
CNS	refinement
SAINT	data reduction
SCALA	data scaling