3P7J

Drosophila HP1a chromo shadow domain

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2FMM	PDB entry 2FMM

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	277	12% PEG400, 0.1 M HEPES. Cryoprotected in 12% PEG400, 0.1 M HEPES, 33% glycerol, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.12	42.02

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 44.755	α = 90
b = 56.545	β = 90
c = 67.295	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 210r	mirror	2009-10-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-BM	0.9792	APS	19-BM

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	2.3	50	99.4	0.047	0.047	37.2	7.1	8023	8023		-3	52.1

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	2.3	2.34	98.8		0.475	0.475	4.3	7.3	397

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 2FMM	2.3	31.12	7607	7607	370	99.5	0.20094	0.20094	0.19853	0.24613	RANDOM	62.534

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]
3.79			-1.03		-2.77

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_2_deg	39.504
f_dihedral_angle_3_deg	14.674
f_dihedral_angle_4_deg	10.147
f_dihedral_angle_1_deg	5.484
f_scangle_it	3.94
f_scbond_it	2.472
f_mcangle_it	1.77
f_angle_refined_deg	1.421
f_mcbond_it	0.976
f_angle_other_deg	0.84
f_chiral_restr	0.093
f_mcbond_other	0.037
f_bond_refined_d	0.019
f_bond_other_d	0.006
f_gen_planes_refined	0.005
f_gen_planes_other	0.001
f_nbd_refined
f_nbd_other
f_nbtor_refined
f_nbtor_other
f_xyhbond_nbd_refined
f_xyhbond_nbd_other
f_metal_ion_refined
f_metal_ion_other
f_symmetry_vdw_refined
f_symmetry_vdw_other
f_symmetry_hbond_refined
f_symmetry_hbond_other
f_symmetry_metal_ion_refined
f_symmetry_metal_ion_other
f_rigid_bond_restr
f_sphericity_free
f_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	940
Nucleic Acid Atoms
Solvent Atoms	37
Heterogen Atoms	6

Software

Software
Software Name	Purpose
HKL-2000	data collection
PHASER	phasing
PHENIX	refinement
CNS	refinement
REFMAC	refinement
Coot	model building
HKL-2000	data reduction
HKL-2000	data scaling