2X36

Structure of the proteolytic domain of the Human Mitochondrial Lon protease

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.5		0.1 M BIS-TRIS PROPANOL PH 6.5, 0.25 M SODIUM ACETATE, 28% PEG 3350

Crystal Properties
Matthews coefficient	Solvent content
2.53	51

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 69.8	α = 90
b = 83.75	β = 90.05
c = 105.49	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	ADSC CCD		2008-08-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-4	0.9395, 0.9395	ESRF	ID14-4

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	2.11	99.4	0.06	10.9	3.6		82419		2

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	2.11	99.9		0.73	1.7	3.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1RRE	2	34	77152	4394	98.96	0.19549	0.19355	0.2323	RANDOM	40.803

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]
16.64		1.51	17.57		-34.21

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.862
r_dihedral_angle_4_deg	20.568
r_dihedral_angle_3_deg	20.004
r_scangle_it	9.057
r_scbond_it	7.911
r_dihedral_angle_1_deg	7.815
r_mcangle_it	5.686
r_mcbond_it	4.47
r_angle_refined_deg	2.095
r_mcbond_other	1.586
r_angle_other_deg	1.196
r_chiral_restr	0.139
r_bond_refined_d	0.027
r_gen_planes_refined	0.011
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8297
Nucleic Acid Atoms
Solvent Atoms	328
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
MOLREP	phasing