3M83

Crystal structure of Acetyl xylan esterase (TM0077) from THERMOTOGA MARITIMA at 2.12 A resolution (paraoxon inhibitor complex structure)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.3	277	0.2000M CaAcetate, 20.0000% PEG-3350, No Buffer pH 7.3, Additive: 0.004 M diethyl p-nitrophenyl phosphate (paraoxon), NANODROP', VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.58	52.33

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 103.797	α = 90
b = 104.431	β = 90
c = 221.644	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	CCD	ADSC QUANTUM 315		2009-06-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.3		ALS	5.0.3

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	2.12	48.97	89.8	0.095	15.26			123070		-3	26.92

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	2.12	2.18	53.5		0.519	2.2

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	MR	THROUGHOUT	1vlq	2.12	48.97	122994	6188	89.82	0.169	0.168	0.205	RANDOM	23.858

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]
-0.73			-0.1		0.82

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.659
r_dihedral_angle_4_deg	16.767
r_dihedral_angle_3_deg	13.989
r_dihedral_angle_1_deg	6.201
r_scangle_it	5.792
r_scbond_it	4.446
r_mcangle_it	2.523
r_mcbond_it	1.775
r_angle_refined_deg	1.437
r_angle_other_deg	0.983
r_symmetry_vdw_refined	0.314
r_mcbond_other	0.283
r_symmetry_vdw_other	0.257
r_nbd_refined	0.198
r_nbd_other	0.191
r_xyhbond_nbd_other	0.184
r_nbtor_refined	0.181
r_xyhbond_nbd_refined	0.159
r_symmetry_hbond_refined	0.118
r_chiral_restr	0.086
r_nbtor_other	0.086
r_metal_ion_refined	0.08
r_bond_refined_d	0.015
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	15755
Nucleic Acid Atoms
Solvent Atoms	985
Heterogen Atoms	68

Software

Software
Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
PHASER	phasing
MolProbity	model building
XSCALE	data scaling
PDB_EXTRACT	data extraction
XDS	data reduction