1GMJ

The structure of bovine IF1, the regulatory subunit of mitochondrial F-ATPase

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8	296	CRYSTALS WERE GROWN BY EQUILIBRATING A IF1-H49K SOLUTION, AT 6 MG/ML IN BUFFER 10 MM TRIS-HCL PH 8.0, RESERVOIR CONTAINING 0.8 M MONO-SODIUM DIHYDROGEN PHOSPHAT AGAINST A 0.8 M MONO-POTASSIUM DIHYDROGEN PHOSPHATE AND 0.1 M HEPES-NA BUFFER PH 8, AT 23C, IN SITTING-DROP VAPOR-DIFFUSION TRAYS.

Crystal Properties
Matthews coefficient	Solvent content
3.6	65

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 32.01	α = 90
b = 53.29	β = 95.89
c = 156.94	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	MARRESEARCH		2000-12-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-1		ESRF	ID14-1

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	2.2	14.2	72.3	0.065	10.5	2.4		18750			33.1

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.2	2.35	10.8		0.227	3.7	2.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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	SIRAS	THROUGHOUT	2.2	26	18832	1860	69.7	0.258	0.258	0.28	RANDOM	72.8

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]
15.13		7.1	-45.2		30.07

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	15.05
c_scangle_it	14.6
c_scbond_it	10.5
c_mcangle_it	6
c_mcbond_it	4.1
c_angle_deg	1.16
c_improper_angle_d	0.73
c_bond_d	0.009
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_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2037
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms

Software

Software
Software Name	Purpose
MOSFLM	data reduction
CCP4	data scaling
MLPHARE	phasing
SHARP	phasing
CNS	refinement