Experiment: 4WAB

Crystal structure of mPGES1 solved by native-SAD phasing

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	LIPIDIC CUBIC PHASE	6.7	293	8 %(V/V) 2-METHYL-2,4, -PENTANEDIOL (MPD), 0.4 M POTASSIUM NITRATE, 0.1 M POTASSIUM CITRATE, 0.1 M N-(CARBAMOYLMETHYL)IMINODIACETIC ACID (ADA) SODIUM PH 6.7. CRYSTALLIZED USING THE IN MESO (LIPIDIC CUBIC PHASE, LCP) METHOD AT 4 DEGREES CELCIUS WITH THE 8.8 MONOACYLGLYCEROL (8.8 MAG) DOPED WITH 2 MOL% OF DIOLEOYL PHOSPHATIDYLCHOLINE (DOPC) AS THE HOSTING LIPID.

Crystal Properties
Matthews coefficient	Solvent content
3.21	61.62

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 86.72	α = 90
b = 86.72	β = 90
c = 180.36	γ = 120

Symmetry
Space Group	H 3 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS PILATUS 2M		2012-12-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06DA	2.0664	SLS	X06DA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.7	50	99.4	31.07	58.2		27480

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.7	2.77	92		3.72		1855

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	SAD	FREE R-VALUE	2.704	43.36	1.92	13774	678	99.56	0.1808	0.1777	0.1912	0.2405	0.2529

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	13.164
f_angle_d	1.102
f_chiral_restr	0.039
f_bond_d	0.009
f_plane_restr	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1278
Nucleic Acid Atoms
Solvent Atoms	19
Heterogen Atoms	61

Software

Software
Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing