Experiment: 3L45

NEUTRON DIFFRACTION - X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1			291	2.4M ammonium sulfate, 100mM citric acid pH5 and 3M sodium monobasic/potassium dibasic phosphate, VAPOR DIFFUSION, SITTING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
1.94	36.76

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 27.54	α = 90
b = 56.58	β = 96.21
c = 28.86	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	293	CCD	ADSC QUANTUM 315	MIRRORS		M	SINGLE WAVELENGTH
2	1	neutron	293	TOF AREA DETECTOR	IMAGE PLATE			L	LAUE

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 24-ID-C	0.98	APS	24-ID-C
2	NUCLEAR REACTOR	LANSCE BEAMLINE PCS	1.1-5	LANSCE	PCS

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	R Split (All)	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	28		0.256						4.2	3.4

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	R Merge I (Observed)	R-Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	R Split (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.8	1.85		0.41						1.5	2.3	1635

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
NEUTRON DIFFRACTION	MOLECULAR REPLACEMENT	1.8	28				6078				0.209	0.209		0.234		RANDOM
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	1.5	50				11364		95.4			0.198	0.2	0.215	0.21

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
c_dihedral_angle_d	17.6
c_angle_deg	2
c_improper_angle_d	1.65
c_bond_d	0.021
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	807
Nucleic Acid Atoms
Solvent Atoms	91
Heterogen Atoms	1

Software

Software
Software Name	Purpose
nCNS	refinement
HKL-2000	data reduction
d*TREK	data reduction
HKL-2000	data scaling
LAUENORM	data scaling
SCALA	data scaling
EPMR	phasing

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.