Experiment: 4LNI

B. subtilis glutamine synthetase structures reveal large active site conformational changes and basis for isoenzyme specific regulation: structure of the transition state complex

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	298	5% PEG8000, 0.025 mM magnesium chloride, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.95	58.24

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 110.2	α = 60.29
b = 141.6	β = 67.38
c = 142.1	γ = 76.2

Symmetry
Space Group	P 1

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 315r		2012-12-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1	1.0	ALS	8.3.1

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	2.5793	117.103	90.9	0.079	3.5	2	218460	196618

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	2.5793	2.72	67		0.201	3.5	1.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	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	2.5793	117.103	1.97	218460	196597	2005	90.79	0.1655	0.1649	0.1586	0.2231	0.1622

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]
12.0412	-5.101	-6.9773	-3.3826	-2.1398	-8.6586

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	19.123
f_angle_d	2.184
f_chiral_restr	0.113
f_bond_d	0.02
f_plane_restr	0.01

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	42406
Nucleic Acid Atoms
Solvent Atoms	2167
Heterogen Atoms	540

Software

Software
Software Name	Purpose
PHENIX	refinement
MOLREP	phasing
CNS	refinement
MOSFLM	data reduction
SCALA	data scaling
ADSC	data collection