3C1M

Cyrstal Structure of threonine-sensitive aspartokinase from Methanococcus jannaschii with MgAMP-PNP and L-aspartate

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	293	14% PEG4000, 100mM Tris, 800mM Ammonium Formate, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.47	50.23

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 101.408	α = 90
b = 104.478	β = 90
c = 192.045	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	MARMOSAIC 300 mm CCD		2006-10-13	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 23-ID-B	1.033	APS	23-ID-B

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	2.3	50	78	0.058	18.5	3.5		86820		2.9

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.3	2.38			0.305	2.9	2.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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		THROUGHOUT	2.3	50	86820	82404	4369	95.61	0.19638	0.19375	0.24613	RANDOM	28.128

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]
-2.44			1.1		1.35

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.527
r_dihedral_angle_4_deg	20.403
r_dihedral_angle_3_deg	18.451
r_dihedral_angle_1_deg	5.812
r_scangle_it	2.103
r_angle_refined_deg	1.334
r_scbond_it	1.288
r_mcangle_it	0.759
r_mcbond_it	0.463
r_nbtor_refined	0.299
r_symmetry_vdw_refined	0.215
r_nbd_refined	0.209
r_symmetry_hbond_refined	0.17
r_xyhbond_nbd_refined	0.152
r_chiral_restr	0.095
r_metal_ion_refined	0.036
r_bond_refined_d	0.01
r_gen_planes_refined	0.004
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	14215
Nucleic Acid Atoms
Solvent Atoms	621
Heterogen Atoms	182

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
Blu-Ice	data collection
DENZO	data reduction
SCALEPACK	data scaling
HKL-2000	data scaling
REFMAC	phasing