5DM3

Crystal Structure of Glutamine Synthetase from Chromohalobacter salexigens DSM 3043(Csal_0679, TARGET EFI-550015) with bound ADP

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4LNI

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	298	Protein (5mM MgCl2, 5mM ATP, 10 mM HEPES pH 7.5, 5 mM DTT); Reservoir (.1 M Sodium Citrate:HCl pH 5.6, 10% (w/v) PEG 4000, 10% (v/v) 2-Propanol); Cryoprotection (20% Ethylene glycol, 80% Reservoir)

Crystal Properties
Matthews coefficient	Solvent content
2.29	46.34

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 132.983	α = 90
b = 221.339	β = 90
c = 199.353	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	RAYONIX MX225HE	MIRRORS	2015-08-13	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 31-ID	0.9793	APS	31-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	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	2.6	199.35	99.9	0.171	0.068	0.994	7.1	7.2		90297			58.52

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.6	2.64	98.9		1.711	0.809	0.307	0.8	5.1	4387

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	4LNI	2.6	74.064	1.34	90161	4511	99.82	0.2043	0.2007	0.2741	60.585

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	15.891
f_angle_d	1.229
f_chiral_restr	0.045
f_bond_d	0.009
f_plane_restr	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	17602
Nucleic Acid Atoms
Solvent Atoms	60
Heterogen Atoms	162

Software

Software
Software Name	Purpose
DIALS	data scaling
PHASER	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
DIALS	data reduction

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.