Experiment: 2ZC0

Crystal structure of an archaeal alanine:glyoxylate aminotransferase

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	293	Drops (2 micro l) of protein solution (15 mg/ml) containing 5mM L-Ala were mixed with an equal volume of 35-40% 1,4-butanediol, 0.1M zinc acetate, 0.1M imidazol/HCl, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.5	50.88

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 77.694	α = 90
b = 112.519	β = 90
c = 207.287	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	RIGAKU JUPITER 210	mirrors	2006-12-01	M	SINGLE WAVELENGTH
2	1	x-ray	100	CCD	RIGAKU JUPITER 210	mirrors	2006-12-01	M	MAD
1,2	1

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL26B1	1.0	SPring-8	BL26B1
2	SYNCHROTRON	SPRING-8 BEAMLINE BL26B1	0.9788, 0.9794, 0.9000	SPring-8	BL26B1

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	2.3	49.4	98	0.073	12.4	7.1	79989	79851			28.5

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	2.3	2.38	87.8		0.294	5.2	6.3	7066

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-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	2.3	49.4	79989	79851	8007	98	0.236	0.2381	0.261	0.2511	RANDOM	48.6

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
c_angle_deg	1.5
c_bond_d	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	12444
Nucleic Acid Atoms
Solvent Atoms	382
Heterogen Atoms	88

Software

Software
Software Name	Purpose
HKL-2000	data collection
SOLVE	phasing
CNS	refinement
CrystalClear	data reduction
CrystalClear	data scaling