3RMU

Crystal structure of human Methylmalonyl-CoA epimerase, MCEE

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	293.15	30% PEG smears (PEG400, PEG550 MME, PEG600, PEG1000), 0.1 M Tris, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 293.15K

Crystal Properties
Matthews coefficient	Solvent content
2.37	48.11

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 53.12	α = 90
b = 66.69	β = 90.1
c = 76.98	γ = 90

Symmetry
Space Group	P 1 21 1

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	Kirkpatrick Baez bimorph mirror pair	2010-12-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I02		Diamond	I02

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	1.8	38.49	99.2	0.076	8.9	3.6	49557	49519			23

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	1.8	1.9	99.7		0.565	2	3.6	7219

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	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 30A4	1.8	36.59	2	49519	47027	2491	99.14	0.18961	0.18701	0.23722	RANDOM	27.591

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]
-2.33		0.11	2.72		-0.39

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	43.157
r_dihedral_angle_4_deg	20.022
r_dihedral_angle_3_deg	13.548
r_scangle_it	9.977
r_scbond_it	7.24
r_dihedral_angle_1_deg	7.083
r_mcangle_it	4.268
r_mcbond_it	2.883
r_angle_refined_deg	1.505
r_mcbond_other	0.932
r_angle_other_deg	0.915
r_chiral_restr	0.093
r_bond_refined_d	0.015
r_gen_planes_refined	0.007
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3983
Nucleic Acid Atoms
Solvent Atoms	323
Heterogen Atoms	109

Software

Software
Software Name	Purpose
GDA	data collection
PHASER	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling