2IGP

Crystal Structure of Hec1 CH domain

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	291	0.1 M cacodylate, pH 6.5, 22-30% PEG 8K, 0.2 M (NH4)2SO4, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.25	45.42

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 40.929	α = 90
b = 44.703	β = 90
c = 68.036	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	98	CCD	ADSC QUANTUM 315		2006-06-02	M	SINGLE WAVELENGTH
2	1	x-ray		CCD	ADSC QUANTUM 210		2006-05-18	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.2	0.97973, 0.97986, 0.95370	ALS	8.2.2
2	SYNCHROTRON	ALS BEAMLINE 8.2.1	0.9199	ALS	8.2.1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.8	50	100	0.075	0.075	26.7	7		12129	2	2	18.1

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.8	1.86	100		0.33	0.33	4.25	6.9	1208

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Cut-off Sigma (F)	Number Reflections (All)	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	MAD	THROUGHOUT	1.8	37.37	2	2	12090	11495	595	99.99	0.201	0.20083	0.19929	0.23123	RANDOM	16.801

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]
-0.27			-0.26		0.53

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.51
r_dihedral_angle_4_deg	23.746
r_dihedral_angle_3_deg	16.563
r_dihedral_angle_1_deg	5.635
r_scangle_it	4.089
r_scbond_it	2.581
r_mcangle_it	1.603
r_angle_refined_deg	1.43
r_mcbond_it	0.958
r_nbtor_refined	0.317
r_nbd_refined	0.233
r_symmetry_vdw_refined	0.21
r_xyhbond_nbd_refined	0.144
r_symmetry_hbond_refined	0.142
r_chiral_restr	0.109
r_bond_refined_d	0.015
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	935
Nucleic Acid Atoms
Solvent Atoms	72
Heterogen Atoms	8

Software

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