3AEC

Crystal structure of porcine heart mitochondrial complex II bound with 2-Iodo-N-(1-methylethyl)-benzamid

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.2	293	25mM HEPES-NAOH, 7% PEG 4000, 200mM Sucrose, 100mM NaCl, 10mM CaCl2, 0.5mM EDTA, 3% 1,6-haxanediol, 0.5% n-decyl-beta-D-maltoside, pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.57	65.53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 70.966	α = 90
b = 83.994	β = 90
c = 295.254	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	CCD	ADSC QUANTUM 270		2009-03-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PHOTON FACTORY BEAMLINE BL-17A	1.30001	Photon Factory	BL-17A

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	3.6	50	99.1	0.16	14.431	4.5		20826

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)
	3.6	3.66	100		0.563	3.52	4.7	1043

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 1ZOY	3.61	42.46	20635	1044	97.81	0.248	0.245	0.294	RANDOM	92.539

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]
-0.46			0.3		0.16

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.273
r_dihedral_angle_3_deg	15.961
r_dihedral_angle_4_deg	11.184
r_dihedral_angle_1_deg	4.109
r_angle_refined_deg	0.857
r_scangle_it	0.232
r_mcangle_it	0.168
r_scbond_it	0.129
r_mcbond_it	0.091
r_chiral_restr	0.057

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.273
r_dihedral_angle_3_deg	15.961
r_dihedral_angle_4_deg	11.184
r_dihedral_angle_1_deg	4.109
r_angle_refined_deg	0.857
r_scangle_it	0.232
r_mcangle_it	0.168
r_scbond_it	0.129
r_mcbond_it	0.091
r_chiral_restr	0.057
r_bond_refined_d	0.005
r_gen_planes_refined	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8480
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	172

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
HKL-2000	data reduction
HKL-2000	data scaling

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.