2BB3

Crystal Structure of Cobalamin Biosynthesis Precorrin-6Y Methylase (cbiE) from Archaeoglobus fulgidus

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6	295	0.1M Sodium Acetate, 11% PEG10K, 2% Iso-Propanol,10mM SAH, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.24	45.03

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 88.191	α = 90
b = 88.418	β = 90
c = 115.932	γ = 90

Symmetry
Space Group	C 2 2 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 315	mirrors	2004-10-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97932	APS	19-ID

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	44.21	97.3	0.068	13.5	11	24301	22771			37.9

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	2.28	82.2		0.808	2.56	5.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	SAD	THROUGHOUT	2.27	29.1	19665	19665	1985	92.3	0.2174	0.211	0.211	0.274	RANDOM	53.6

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]
1.83			2.88		-4.71

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	25.3
c_scangle_it	4.36
c_mcangle_it	3.58
c_scbond_it	2.81
c_mcbond_it	2.1
c_angle_deg	1.7
c_improper_angle_d	0.97
c_bond_d	0.011
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3043
Nucleic Acid Atoms
Solvent Atoms	180
Heterogen Atoms	52

Software

Software
Software Name	Purpose
CNS	refinement
SBC-Collect	data collection
HKL-2000	data reduction
HKL-2000	data scaling
SHARP	phasing