Experiment: 3LQN

Crystal Structure of CBS Domain-containing Protein of Unknown Function from Bacillus anthracis str. Ames Ancestor

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2EMQ	PDB ENTRY 2EMQ

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		10.5	277	0.2M litium sulphate, 0.1 M CAPS pH 10.5, 2.0 M ammonium sulphate, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
1.95	37.06

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 27.585	α = 90
b = 120.77	β = 90
c = 80.026	γ = 90

Symmetry
Space Group	C 2 2 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 210r	MIRRORS	2009-12-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-BM		APS	19-BM

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.8	20	98.2	0.029	23.9	8.1		12662			28.91

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.8	1.83	81.9		0.325	5.5	5.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 2EMQ	1.8	24.4	1.35	9287	12640	622	98.2	0.1864	0.1839	0.1798	0.2376	0.232	39.6

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]
5.408			-0.3039		-5.1041

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	20.051
f_angle_d	1.636
f_chiral_restr	0.125
f_bond_d	0.016
f_plane_restr	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1225
Nucleic Acid Atoms
Solvent Atoms	103
Heterogen Atoms	48

Software

Software
Software Name	Purpose
SBC-Collect	data collection
HKL-3000	data collection
HKL-3000	phasing
MOLREP	phasing
BALBES	phasing
PHENIX	refinement
HKL-3000	data reduction
HKL-3000	data scaling