1OLT

Coproporphyrinogen III oxidase (HemN) from Escherichia coli is a Radical SAM enzyme.

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7		HANGING DROP: 5 MICROL PROTEIN + 5 MICROL RESEVOIR, PROTEIN: 10 MG/ML IN 10 MM HEPES PH 7.5, 3 MM DTT, 150 MM NACL, 0.01% (V/V) C8E4 RESEVOIR: 22% (W/V) PEG10000, 100 MM HEPES PH 7.0

Crystal Properties
Matthews coefficient	Solvent content
2.8	56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 114.036	α = 90
b = 114.036	β = 90
c = 76.459	γ = 120

Symmetry
Space Group	P 63

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		2003-04-15	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.1		BESSY	14.1

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	2.07	50	99.1	0.066	30.6	9.4		1440548

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	2.07	2.11	96.8		0.182	10.2	8.8

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	MAD	THROUGHOUT	2.07	100	32527	1735	99	0.155	0.154	0.187	RANDOM	15.76

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]
0.75	0.38		0.75		-1.13

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.404
r_scangle_it	3.913
r_scbond_it	2.638
r_angle_refined_deg	2.109
r_mcangle_it	1.41
r_angle_other_deg	1.019
r_mcbond_it	0.784
r_nbd_refined	0.304
r_symmetry_vdw_other	0.304
r_nbd_other	0.255
r_symmetry_hbond_refined	0.222
r_xyhbond_nbd_refined	0.219
r_chiral_restr	0.11
r_nbtor_other	0.101
r_symmetry_vdw_refined	0.088
r_bond_refined_d	0.036
r_gen_planes_other	0.011
r_gen_planes_refined	0.009
r_bond_other_d	0.004
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_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	3524
Nucleic Acid Atoms
Solvent Atoms	396
Heterogen Atoms	62

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
autoSHARP	phasing