2BHS

Crystal Structure of Cysteine Synthase B

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.6		pH 5.60

Crystal Properties
Matthews coefficient	Solvent content
5	75

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 195.584	α = 90
b = 195.584	β = 90
c = 235.752	γ = 120

Symmetry
Space Group	P 65 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	MARRESEARCH			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06SA		SLS	X06SA

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	2.67	20	99	0.07	24.6	16.6		75414		2

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	2.67	19.88	73148	2263	100	0.223	0.222	0.253	RANDOM	60.3

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]
0.05	0.02		0.05		-0.07

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.69
r_scangle_it	2.776
r_scbond_it	1.546
r_mcangle_it	1.52
r_angle_refined_deg	1.484
r_angle_other_deg	0.999
r_mcbond_it	0.803
r_symmetry_vdw_other	0.253
r_nbd_other	0.235
r_nbd_refined	0.22
r_symmetry_vdw_refined	0.207
r_xyhbond_nbd_refined	0.175
r_chiral_restr	0.114
r_nbtor_other	0.088
r_symmetry_hbond_refined	0.083
r_bond_refined_d	0.014
r_gen_planes_refined	0.004
r_bond_other_d	0.002
r_gen_planes_other	0.002
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8800
Nucleic Acid Atoms
Solvent Atoms	268
Heterogen Atoms	60

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling