3PPL

Crystal structure of an aspartate transaminase (NCgl0237, Cgl0240) from CORYNEBACTERIUM GLUTAMICUM ATCC 13032 KITASATO at 1.25 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.2	293	0.2M sodium chloride, 20.0% polyethylene glycol 8000, 0.1M phosphate-citrate pH 4.2, Additive: 0.001 M alpha-ketoglutaric acid, NANODROP', VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.44	49.63

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 97.755	α = 90
b = 54.424	β = 101.6
c = 176.34	γ = 90

Symmetry
Space Group	C 1 2 1

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 325 mm CCD		2010-02-11	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.91837,0.97944,0.97908	SSRL	BL11-1

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	1.25	29.324	92.1	0.035	13.04	3.6		241991		-3	10.292

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	1.25	1.29	84.8		0.276	2.75

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	MAD	THROUGHOUT	1.25	29.324	241986	12140	96.56	0.1059	0.1049	0.1242	RANDOM	14.5267

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]
0.17		0.16	0.2		-0.31

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.581
r_dihedral_angle_4_deg	12.842
r_dihedral_angle_3_deg	11.128
r_sphericity_free	8.924
r_dihedral_angle_1_deg	5.991
r_scangle_it	4.789
r_sphericity_bonded	4.085
r_scbond_it	3.231
r_mcangle_it	2.178
r_angle_refined_deg	1.598
r_mcbond_it	1.478
r_rigid_bond_restr	1.382
r_angle_other_deg	0.966
r_mcbond_other	0.715
r_chiral_restr	0.101
r_bond_refined_d	0.014
r_gen_planes_refined	0.01
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6483
Nucleic Acid Atoms
Solvent Atoms	1228
Heterogen Atoms	66

Software

Software
Software Name	Purpose
SHELX	phasing
REFMAC	refinement
XSCALE	data scaling
PDB_EXTRACT	data extraction
XDS	data reduction
SHELXD	phasing
autoSHARP	phasing