2HK6

Crystal Structure of B. subtilis ferrochelatase with Iron bound at the active site

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	8	288	25% PEG 2000, 0.2 M MgCl2, 0.1 M Tris-HCl , pH 8.0, VAPOR DIFFUSION, temperature 288K

Crystal Properties
Matthews coefficient	Solvent content
2.04	39.72

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 48.65	α = 90
b = 49.98	β = 90
c = 118.85	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	MAR CCD 165 mm		2005-06-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MAX II BEAMLINE I911-3	1.0605	MAX II	I911-3

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.7	20	100	0.027	0.055		11.3		31884

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.7	1.81	95.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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 1DOZ	1.71	19.64	2	30288	30288	1595	100	0.17824	0.17609	0.21951	RANDOM	15.516

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]
0.57			-1.03		0.46

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.791
r_dihedral_angle_4_deg	17.977
r_dihedral_angle_3_deg	12.07
r_dihedral_angle_1_deg	4.926
r_scangle_it	3.491
r_scbond_it	2.262
r_angle_refined_deg	1.347
r_mcangle_it	1.295
r_mcbond_it	0.818
r_nbtor_refined	0.304

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.791
r_dihedral_angle_4_deg	17.977
r_dihedral_angle_3_deg	12.07
r_dihedral_angle_1_deg	4.926
r_scangle_it	3.491
r_scbond_it	2.262
r_angle_refined_deg	1.347
r_mcangle_it	1.295
r_mcbond_it	0.818
r_nbtor_refined	0.304
r_metal_ion_refined	0.261
r_nbd_refined	0.2
r_symmetry_vdw_refined	0.182
r_xyhbond_nbd_refined	0.152
r_symmetry_hbond_refined	0.112
r_chiral_restr	0.089
r_bond_refined_d	0.012
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2495
Nucleic Acid Atoms
Solvent Atoms	368
Heterogen Atoms	24

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
MOLREP	phasing

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.