9F14

The crystal structure of full length tetramer CysB from Klebsiella aerogenes in complex with N-acetylserine

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1AL3

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	291	12 -17% PEG 8000, 0.2M sodium tartrate and 0.1M Tris-HCl pH 8.5, 0.2M KSCN, 10 mM N-acetylserine

Crystal Properties
Matthews coefficient	Solvent content
2.61	53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 185.864	α = 90
b = 185.864	β = 90
c = 113.043	γ = 120

Symmetry
Space Group	H 3 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 4		1998-11-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SRS BEAMLINE PX9.6	0.87	SRS	PX9.6

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	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	2.3	19.817	99.8	0.066	0.072	0.029	0.999	20	11.6		33205

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.3	2.38			0.522	0.572	0.233	0.96		11.6

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-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2.3	19.817	33205	1681	99.799	0.215	0.2106	0.2898	63.806

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]
1.333	0.666		1.333		-4.324

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	17.654
r_dihedral_angle_3_deg	16.145
r_dihedral_angle_6_deg	13.791
r_lrange_other	12.606
r_lrange_it	12.595
r_scangle_it	9.461
r_scangle_other	9.46
r_mcangle_it	9.448
r_mcangle_other	9.447
r_mcbond_it	6.712
r_mcbond_other	6.702
r_scbond_it	6.412
r_scbond_other	6.411
r_dihedral_angle_1_deg	6.374
r_angle_refined_deg	1.643
r_angle_other_deg	0.528
r_symmetry_nbd_other	0.228
r_nbd_refined	0.227
r_symmetry_xyhbond_nbd_refined	0.203
r_nbtor_refined	0.183
r_xyhbond_nbd_refined	0.18
r_nbd_other	0.171
r_symmetry_nbd_refined	0.137
r_symmetry_nbtor_other	0.08
r_chiral_restr	0.075
r_symmetry_xyhbond_nbd_other	0.052
r_gen_planes_other	0.01
r_bond_refined_d	0.009
r_gen_planes_refined	0.007
r_bond_other_d

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5062
Nucleic Acid Atoms
Solvent Atoms	242
Heterogen Atoms	20

Software

Software
Software Name	Purpose
REFMAC	refinement
REFMAC	refinement
HKL-3000	data reduction
Aimless	data scaling
MOLREP	phasing