1U9H

Heterocyclic Peptide Backbone Modification in GCN4-pLI Based Coiled Coils: Replacement of E(22)L(23)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	295	0.16 M magnesium acetate tetrahydrate, 0.08 M sodium cacodylate, pH 6.5, 16% w/v PEG 8000, 20% v/v anhydrous glycerol, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.91	57.75

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 45.404	α = 90
b = 45.404	β = 90
c = 90.923	γ = 90

Symmetry
Space Group	P 43 2 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	RIGAKU RAXIS IV	osmic confocal mirrors	2004-04-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200	1.5418

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	2.17	45.17	98.9	0.052	7.2	6.2		5435		2

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	2.17	2.25	95.7		0.31	2.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.17	45.17	5190	244	98.8	0.24857	0.24857	0.24687	0.28418	RANDOM	36.136

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]
0.26			0.26		-0.51

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.111
r_dihedral_angle_3_deg	19.451
r_dihedral_angle_4_deg	19.172
r_dihedral_angle_1_deg	10.88
r_scangle_it	3.732
r_scbond_it	2.361
r_angle_refined_deg	2.001
r_mcangle_it	1.535
r_angle_other_deg	1.023
r_mcbond_it	0.924
r_nbd_refined	0.24
r_symmetry_vdw_refined	0.235
r_symmetry_hbond_refined	0.228
r_xyhbond_nbd_refined	0.226
r_nbd_other	0.217
r_symmetry_vdw_other	0.21
r_mcbond_other	0.21
r_nbtor_refined	0.195
r_chiral_restr	0.105
r_nbtor_other	0.102
r_bond_refined_d	0.019
r_gen_planes_refined	0.007
r_bond_other_d	0.002
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	527
Nucleic Acid Atoms
Solvent Atoms	45
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
CrystalClear	data reduction
CrystalClear	data scaling
PHASER	phasing