2R10

Structure of an acetylated Rsc4 tandem bromodomain Histone Chimera

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8.5	298	0.1M Tris, 0.2M lithium sulfate, 28% PEG 3000, pH 8.5, VAPOR DIFFUSION, temperature 298K, pH 8.50

Crystal Properties
Matthews coefficient	Solvent content
3.09	60.26

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 86.089	α = 90
b = 90.958	β = 90
c = 263.15	γ = 90

Symmetry
Space Group	C 2 2 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 4		2005-01-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X26C		NSLS	X26C

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	50	95.3	0.078	17.2	3.7		49197

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)
	2.2	2.28	83.9		0.494		2.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.2	50	51623	49175	2525	93.7	0.199	0.196	0.246	RANDOM	32.9

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]
-0.74			-0.5		1.24

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.589
r_dihedral_angle_4_deg	25.934
r_dihedral_angle_3_deg	16.886
r_dihedral_angle_1_deg	5.731
r_scangle_it	2.879
r_scbond_it	1.859
r_angle_refined_deg	1.495
r_mcangle_it	1.121
r_mcbond_it	0.662
r_nbtor_refined	0.305
r_nbd_refined	0.206
r_symmetry_vdw_refined	0.191
r_xyhbond_nbd_refined	0.164
r_symmetry_hbond_refined	0.114
r_chiral_restr	0.113
r_bond_refined_d	0.018
r_gen_planes_refined	0.006
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4958
Nucleic Acid Atoms
Solvent Atoms	411
Heterogen Atoms	8

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction