4KE6 | pdb_00004ke6

Crystal structure D196N mutant of Monoglyceride lipase from Bacillus sp. H257 in complex with 1-rac-lauroyl glycerol

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.9	293	~0.9 mM of bMGL(D196N) was mixed with 180 mM 1-(rac)-lauroyl glycerol dissolved in 99% EtOH to achieve a final protein-ligand ratio of 1:5. The protein-ligand mixture was incubated at 4 C for 1 hour. Initial crystals were obtained using the Morpheus screen in condition A4. These crystals were used for preparing a seed stock. The optimised crystals were obtained in a drop containing 0.9 mM bMGL(D196N); 56 % v/v MPD, 0.1 M HEPES pH 6.9 and 1:1000 dilution of seed stock in a ratio of 2:2:1 respectively. 1-LG powder was added to these crystallization drops and the crystals were soaked for 8h., VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.51	51.04

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 39.185	α = 90
b = 182.878	β = 90
c = 248.264	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	IMAGE PLATE	MAR scanner 345 mm plate	mirrors	2013-03-22		SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	BRUKER AXS MICROSTAR	1.54

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.8	73.621	94.4	0.096	9.4	3.9	42482	42482

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.8	2.95	87.6		0.401	0.401	1.9	3.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	2.8	61.357	1.35	42401	42399	2152	93.31	0.2021	0.1998	0.2013	0.2455	0.2458	53.0619

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	13.933
f_angle_d	1.36
f_chiral_restr	0.066
f_plane_restr	0.009
f_bond_d	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	11022
Nucleic Acid Atoms
Solvent Atoms	31
Heterogen Atoms	51

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
PHASER	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
MAR345	data collection