5LK6

Crystal structure of a lipase carboxylesterase from Sulfolobus islandicus

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	298	Hampton Reaserch Crystal Screen 2 (HR2-112) Condition #23. 1.6 M Ammonium sulfate, 0.1 M MES monohydrate pH 6.5, 10% v/v 1,4-Dioxane. Reservoir volume 600 uL. 2 uL of EstA 10 mg/mL in 50 mM Tris pH 8, mixed with 2 uL of reservoir volume for hanging drop at room temperature.

Crystal Properties
Matthews coefficient	Solvent content
4.66	73.34

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 166.41	α = 90
b = 166.41	β = 90
c = 185.78	γ = 90

Symmetry
Space Group	P 43 21 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	CCD	MARMOSAIC 225 mm CCD	First mirror: Water-cooled vertically collimating cylindrical mirror (R = 7300 m). Second mirror: Toroid mirror for horizontal and vertical focusing (R = 3300 m, R = 27 mm).	2012-10-31	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MAX II BEAMLINE I911-3	1.0	MAX II	I911-3

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2.6	29.42	93.3	0.136	0.136	5.6	10.4		79041			39

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	2.6	2.74	99.3		0.543	1.4	10.62

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	3AIK	2.6	29.42	75089	3952	98.26	0.15892	0.15705	0.1943	RANDOM	28.085

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]
					0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.977
r_dihedral_angle_4_deg	18.65
r_dihedral_angle_3_deg	17.402
r_long_range_B_refined	7.084
r_long_range_B_other	7.008
r_dihedral_angle_1_deg	6.979
r_scangle_other	5.442
r_scbond_it	3.518
r_scbond_other	3.482
r_mcangle_it	3.422
r_mcangle_other	3.422
r_mcbond_other	2.235
r_mcbond_it	2.234
r_angle_refined_deg	2.059
r_angle_other_deg	1.113
r_chiral_restr	0.113
r_bond_refined_d	0.019
r_gen_planes_refined	0.008
r_bond_other_d	0.002
r_gen_planes_other	0.002
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9368
Nucleic Acid Atoms
Solvent Atoms	438
Heterogen Atoms	40

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
SCALA	data scaling
PHASER	phasing