Experiment: 3NEC

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2JKF	2JKF without residues 57-77

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6	289	2.4 M ammonium sulfate, 0.1 M sodium citrate, 0.2 M potassium/sodium tartrate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 289.0K

Crystal Properties
Matthews coefficient	Solvent content
2.23	44.72

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 49.528	α = 74.7
b = 53.335	β = 73.82
c = 68.617	γ = 68.98

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 315	Meridionally-bent fused silica mirror with palladium and uncoated stripes vertically-focusing at 6.6:1 demagnification.	2009-02-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X25	0.979	NSLS	X25

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	1.7	27	94	0.073	17.18	3.8		61203			19

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)
	1.7	1.76	69.9		0.41	3	3.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2JKF without residues 57-77	1.7	26.3	61203	2814	94.01	0.1587	0.17	0.19618	0.21	RANDOM	26.258

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]
0.02	0.27	-0.1	0.03	-0.04	-0.17

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.983
r_dihedral_angle_4_deg	15.59
r_dihedral_angle_3_deg	12.016
r_scangle_it	10.768
r_scbond_it	7.634
r_dihedral_angle_1_deg	5.656
r_mcangle_it	3.633
r_mcbond_it	2.336
r_angle_refined_deg	1.168
r_chiral_restr	0.088

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.983
r_dihedral_angle_4_deg	15.59
r_dihedral_angle_3_deg	12.016
r_scangle_it	10.768
r_scbond_it	7.634
r_dihedral_angle_1_deg	5.656
r_mcangle_it	3.633
r_mcbond_it	2.336
r_angle_refined_deg	1.168
r_chiral_restr	0.088
r_bond_refined_d	0.011
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4974
Nucleic Acid Atoms
Solvent Atoms	753
Heterogen Atoms	52

Software

Software
Software Name	Purpose
CBASS	data collection
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling

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.