Experiment: 3L76

Crystal Structure of Aspartate Kinase from Synechocystis

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5	293	0.1M Ammonium sulafte, 0.15 M Ammonium citrate, 9.5% PEG 3350, 2mM lysine, 2mM threonine, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.02	59.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 86.21	α = 90
b = 237.71	β = 90
c = 150.08	γ = 90

Symmetry
Space Group	C 2 2 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 315r	Mirrors	2007-06-13	M	MAD
2	1	x-ray	100	CCD	ADSC QUANTUM 210r	Undulator		M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM30A	0.97924, 0.97939	ESRF	BM30A
2	SYNCHROTRON	ESRF BEAMLINE ID14-1	0.934	ESRF	ID14-1

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	2.54	41.4	98	0.074	0.074	24.9	7.33		51063

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)
	2.54	2.64	95.3		0.533	0.533	4.03	7.2	5258

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MAD	2.54	41.4	1.36	51050	2553	99.69	0.2021	0.2021	0.1992	0.1942	0.2547	0.2484	61.344

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]
6.813			-1.433		-5.38

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	18.257
f_angle_d	1.152
f_chiral_restr	0.092
f_bond_d	0.009
f_plane_restr	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8473
Nucleic Acid Atoms
Solvent Atoms	174
Heterogen Atoms	77

Software

Software
Software Name	Purpose
Nemo/Xnemo	data collection
SOLVE	phasing
PHENIX	refinement
XDS	data reduction
XDS	data scaling