1KCZ

Crystal Structure of beta-methylaspartase from Clostridium tetanomorphum. Mg-complex.

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	292	Tris-HCl, NaCl, ethylene glycol, PEG 6000, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
2.19	43.75

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 67.016	α = 90
b = 108.783	β = 90
c = 109.557	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 4		2001-09-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	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)	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	1.9	55.05	99.6	0.114	9	11.4	63850	63452		4.3	15

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	1.9	1.95	95.1		0.264	4.3	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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	1.9	76.7	60342	60342	3210	99.53	0.13699	0.13699	0.13498	0.17459	RANDOM	8.67

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]
-0.66			-1.29		1.95

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	16.412
r_scangle_it	4.938
r_dihedral_angle_1_deg	4.507
r_scbond_it	3.095
r_angle_refined_deg	1.743
r_mcangle_it	1.734
r_mcbond_it	0.972
r_angle_other_deg	0.827
r_symmetry_vdw_refined	0.552
r_symmetry_hbond_refined	0.48
r_symmetry_vdw_other	0.303
r_nbd_refined	0.234
r_xyhbond_nbd_refined	0.224
r_nbd_other	0.199
r_xyhbond_nbd_other	0.149
r_chiral_restr	0.114
r_bond_refined_d	0.021
r_gen_planes_refined	0.008
r_gen_planes_other	0.002
r_bond_other_d	0.001
r_nbtor_other
r_symmetry_hbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6381
Nucleic Acid Atoms
Solvent Atoms	847
Heterogen Atoms	10

Software

Software
Software Name	Purpose
SnB	phasing
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
SHAKE-N-BAKE	phasing