3LGN

Crystal structure of IsdI in complex with heme

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.5	277	25% polyethylene glycol 3350, 0.2M MgCl2, 0.1M Bis-Tris buffer pH 5.5, and flash frozen with a cryoprotectant of 10% ethylene glycol, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.59	52.57

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 58.24	α = 90
b = 66.78	β = 90
c = 69.43	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	MARMOSAIC 300 mm CCD	DCM with cryo-cooled 1st crystal sagittally bent 2nd crystal followed by vertically focusing mirror.	2008-11-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CLSI BEAMLINE 08ID-1	0.97934	CLSI	08ID-1

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	1.5	69.43	99.8	0.077		6.8	43991	43991

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 2ZDP	1.5	44.62	44056	43931	2217	99.71	0.213	0.183	0.181	0.214	RANDOM	21.709

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]
-0.92			0.33		0.59

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.619
r_dihedral_angle_3_deg	11.337
r_dihedral_angle_4_deg	8.829
r_dihedral_angle_1_deg	5.879
r_scangle_it	2.97
r_scbond_it	1.939
r_mcangle_it	1.368
r_angle_refined_deg	1.118
r_rigid_bond_restr	0.935
r_mcbond_it	0.759
r_chiral_restr	0.071
r_bond_refined_d	0.009
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1884
Nucleic Acid Atoms
Solvent Atoms	281
Heterogen Atoms	91

Software

Software
Software Name	Purpose
SCALA	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
MOSFLM	data reduction