2GHR

Crystal structure of homoserine o-succinyltransferase (NP_981826.1) from Bacillus cereus ATCC 10987 at 2.40 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION,SITTING DROP,NANODROP	8	277	1.6M (NH4)2SO4, 0.1M TRIS pH 8.0 , VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.44	54.08

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 95.89	α = 90
b = 95.89	β = 90
c = 75.403	γ = 90

Symmetry
Space Group	P 41 2 2

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 315	1m long Rh coated bent cylindrical mirror for horizontal and vertical focussing	2006-02-14	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL1-5	0.918381, 0.979094,0.978532	SSRL	BL1-5

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	2.4	29.64	99.8	0.124	0.124	4.6	6.6		14274			38.1

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)
1	2.4	2.46		100	0.592	0.592	1.3	6.8

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	2.4	30	13291	699	97.97	0.191	0.19144	0.188	0.25	RANDOM	22.813

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]
-0.02			-0.02		0.03

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	29.14
r_dihedral_angle_4_deg	14.566
r_dihedral_angle_3_deg	13.183
r_scangle_it	6.421
r_dihedral_angle_1_deg	5.377
r_scbond_it	4.574
r_mcangle_it	2.593
r_mcbond_it	1.632
r_angle_refined_deg	0.742
r_angle_other_deg	0.513
r_mcbond_other	0.358
r_symmetry_vdw_other	0.252
r_nbd_refined	0.204
r_nbd_other	0.195
r_symmetry_hbond_refined	0.193
r_nbtor_refined	0.187
r_xyhbond_nbd_refined	0.151
r_symmetry_vdw_refined	0.136
r_nbtor_other	0.086
r_chiral_restr	0.049
r_bond_refined_d	0.014
r_gen_planes_refined	0.002
r_bond_other_d	0.001
r_gen_planes_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2210
Nucleic Acid Atoms
Solvent Atoms	78
Heterogen Atoms	5

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALA	data scaling
PDB_EXTRACT	data extraction
MOSFLM	data reduction
CCP4	data scaling
SHARP	phasing