1U9G

Heterocyclic Peptide Backbone Modification in GCN4-pLI Based Coiled Coils: Replacement of K(8)L(9)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		295	0.4 M lithium sulfate monohydrate, 12% w/v PEG 8000, 20% v/v anhydrous glycerol, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.48	50.38

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.228	α = 90
b = 78.228	β = 90
c = 78.228	γ = 90

Symmetry
Space Group	P 41 3 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	2004-04-13	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	2.2	45.17	100	0.031	11	5.6		4526		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	2.2	2.28	98.8		0.326	2.2

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.2	45.17	4295	208	99.65	0.24856	0.24856	0.24477	0.25	0.32575	0.33	RANDOM	46.59

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.236
r_dihedral_angle_3_deg	17.793
r_dihedral_angle_4_deg	13.195
r_mcbond_other	10.153
r_dihedral_angle_1_deg	7.456
r_scangle_it	4.429
r_scbond_it	3.229
r_angle_refined_deg	2.664
r_mcangle_it	2.147
r_angle_other_deg	1.979
r_mcbond_it	1.783
r_symmetry_hbond_refined	0.407
r_nbd_refined	0.323
r_xyhbond_nbd_refined	0.305
r_symmetry_vdw_other	0.274
r_symmetry_vdw_refined	0.234
r_nbtor_refined	0.211
r_nbd_other	0.189
r_nbtor_other	0.103
r_chiral_restr	0.092
r_bond_other_d	0.03
r_bond_refined_d	0.021
r_xyhbond_nbd_other	0.014
r_gen_planes_refined	0.007
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	363
Nucleic Acid Atoms
Solvent Atoms	19
Heterogen Atoms	5

Software

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