Experiment: 4C3M

Structure of wildtype PII from S. elongatus at medium resolution

X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5		100 MM HEPES, 20% PEG8000, PH 7.5

Crystal Properties
Matthews coefficient	Solvent content
1.8	33

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 73.418	α = 90
b = 73.418	β = 90
c = 95.623	γ = 120

Symmetry
Space Group	P 32 2 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	PIXEL	DECTRIS PILATUS 6M			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X10SA		SLS	X10SA

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	2.15	95	100	0.07	13.7	13.7		16722		2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.15	2.28	99.8		0.57	2.4	13.6

Refinement

Statistics
Diffraction ID	Structure Solution 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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 4AFF	2.149	63.582	2.02	16721	836	99.95	0.2111	0.2098	0.2153	0.2347	0.2438

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	16.032
f_angle_d	1.146
f_chiral_restr	0.075
f_bond_d	0.008
f_plane_restr	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2063
Nucleic Acid Atoms
Solvent Atoms	60
Heterogen Atoms

Software

Software
Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XDS	data scaling
MOLREP	phasing