Experiment: 2NO1

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1P5Z

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	298	Reservoir containing 0.95-1.5M trisodium citrate dihydrate and 100mM HEPES, pH 7.5., VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.25	45.31

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.7	α = 90
b = 132.76	β = 90
c = 156.85	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	MARMOSAIC 225 mm CCD	mirrors	2005-10-31	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-BM	1.0	APS	22-BM

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	1.9	30	98.6	0.108	10.6	4.9	43480	42887		-3	21.5

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)
	1.9	2	98.6		0.519	2.8	4.8	6830

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-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1P5Z	1.91	30	38525	4264	98.39	0.19651	0.19168	0.24101	RANDOM	22.619

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]
0.79			-0.34		-0.45

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.589
r_dihedral_angle_4_deg	19.863
r_dihedral_angle_3_deg	14.547
r_dihedral_angle_1_deg	5.936
r_scangle_it	3.431
r_scbond_it	2.333
r_angle_refined_deg	1.632
r_mcangle_it	1.612
r_mcbond_it	0.987
r_nbtor_refined	0.307

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.589
r_dihedral_angle_4_deg	19.863
r_dihedral_angle_3_deg	14.547
r_dihedral_angle_1_deg	5.936
r_scangle_it	3.431
r_scbond_it	2.333
r_angle_refined_deg	1.632
r_mcangle_it	1.612
r_mcbond_it	0.987
r_nbtor_refined	0.307
r_symmetry_vdw_refined	0.274
r_nbd_refined	0.201
r_xyhbond_nbd_refined	0.15
r_symmetry_hbond_refined	0.106
r_chiral_restr	0.102
r_bond_refined_d	0.015
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3838
Nucleic Acid Atoms
Solvent Atoms	192
Heterogen Atoms	86

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
MOLREP	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.