Experiment: 3ERN

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1GX1

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.4	298	0.1M ammonium sulfate, sodium acetate, PEG 2000 MME, pH 4.4, vapor diffusion, hanging drop, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.69	54.35

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 88.856	α = 90
b = 54.236	β = 94.99
c = 118.384	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	100	CCD	ADSC QUANTUM 210	mirrors	2003-11-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID29	0.9756	ESRF	ID29

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	2.1	20	91.86	0.089		4.6	71490	65677		1.6

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.1	2.154	92.95

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	1GX1	2.1	20	66113	65677	3342	99.34	0.219	0.218	0.237	RANDOM	34.02

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]
-1.57		-0.57	-3.18		4.66

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.521
r_dihedral_angle_3_deg	16.49
r_dihedral_angle_4_deg	15.713
r_dihedral_angle_1_deg	5.046
r_scangle_it	2.543
r_scbond_it	1.514
r_mcangle_it	1.245
r_angle_refined_deg	1.235
r_mcbond_it	0.768
r_nbtor_refined	0.302

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.521
r_dihedral_angle_3_deg	16.49
r_dihedral_angle_4_deg	15.713
r_dihedral_angle_1_deg	5.046
r_scangle_it	2.543
r_scbond_it	1.514
r_mcangle_it	1.245
r_angle_refined_deg	1.235
r_mcbond_it	0.768
r_nbtor_refined	0.302
r_symmetry_vdw_refined	0.229
r_symmetry_hbond_refined	0.215
r_nbd_refined	0.199
r_xyhbond_nbd_refined	0.146
r_chiral_restr	0.128
r_bond_refined_d	0.009
r_gen_planes_refined	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6975
Nucleic Acid Atoms
Solvent Atoms	284
Heterogen Atoms	157

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
MOSFLM	data reduction
SCALA	data scaling
AMoRE	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.