3W92

Crystal Structure Analysis of the synthetic GCN4 Thioester coiled coil peptide

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1IJ2	1IJ2, 1IJ3
experimental model	PDB	1IJ3	1IJ2, 1IJ3

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	293	2.2M Sodium Acetate, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.34	47.46

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 31.76	α = 90
b = 33.552	β = 90
c = 94.998	γ = 90

Symmetry
Space Group	P 21 21 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	ADSC QUANTUM 315		2011-05-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1	0.972	ESRF	ID23-1

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	1.35	50	99.8	0.082	10.5	24.8	23001	22947

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	1.35	1.37	99		0.876		20.1	1103

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	1IJ2, 1IJ3	1.35	47.5	23001	22857	1174	99.47	0.1653	0.1639	0.1895	RANDOM	21.2541

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]
-0.17			-0.82		0.99

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	29.342
r_sphericity_free	17.247
r_dihedral_angle_3_deg	14.528
r_sphericity_bonded	11.686
r_dihedral_angle_4_deg	11.494
r_scangle_it	6.635
r_scbond_it	4.374
r_mcangle_it	3.267
r_dihedral_angle_1_deg	2.979
r_angle_refined_deg	2.582
r_rigid_bond_restr	2.202
r_mcbond_it	2.178
r_mcbond_other	1.65
r_angle_other_deg	1.244
r_chiral_restr	0.129
r_bond_refined_d	0.026
r_gen_planes_other	0.014
r_gen_planes_refined	0.012
r_bond_other_d	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	753
Nucleic Acid Atoms
Solvent Atoms	115
Heterogen Atoms	76

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection