3IO4 | pdb_00003io4

Huntingtin amino-terminal region with 17 Gln residues - Crystal C90

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3IOR

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.2	277	12% polyethylene glycol, 200 mM Zn Acetate, 200 mM Sodium Acetate, 100 mM Sodium Cacodylate pH 6.5 to 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
3.96	68.93

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 162.95	α = 90
b = 101.21	β = 90.42
c = 142.05	γ = 90

Symmetry
Space Group	C 1 2 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 315	Rosenbaum-Rock vertical focusing mirror, with Pt, glass, Pd lanes	2006-06-29	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	1.55	APS	19-ID

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	3	40	90	0.02	5.5		30000	23000	2	1	30

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 (Depositor)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3IOR	3.63	37.42	16075	842	64.38	0.25397	0.2513	0.30354	0.2988	RANDOM	104.511

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]
0.9		0.81	2.04		-2.93

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.634
r_dihedral_angle_3_deg	21.821
r_dihedral_angle_4_deg	17.69
r_dihedral_angle_1_deg	5.184
r_angle_refined_deg	1.18
r_rigid_bond_restr	1.064
r_scbond_it	0.856
r_scangle_it	0.736
r_mcangle_it	0.552
r_mcbond_it	0.31
r_chiral_restr	0.077
r_bond_refined_d	0.009
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9317
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	14

Software

Software
Software Name	Purpose
HKL-2000	data collection
PHASES	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling