5FE3

Crystal structure of human PCAF bromodomain in complex with fragment MB360 (fragment 4)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		277.15	21-35% PEG 3350, 0.1 M Bis-Tris pH 5.5-7.0 or 21-40% medium-molecular-weight PEG smears (MMW PEG smears) buffered either with 0.1 M Bis-Tris pH 6.0-7.5 or 0.1 M Tris pH 7.5-8.8

Crystal Properties
Matthews coefficient	Solvent content
3.4	63.83

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 99.721	α = 90
b = 99.721	β = 90
c = 100.742	γ = 120

Symmetry
Space Group	H 3

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	Bruker Platinum 135		2011-09-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	BRUKER AXS MICROSTAR	1.54399

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	2.12	32.78	99.3	0.065	13.9	5.3		21067			33.4

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	2.12	2.23	97.8		0.368	2	3.1

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	pdb id 3GG3	2.12	28.79	19977	1086	99.33	0.19997	0.19801	0.23693	RANDOM	41.77

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]
-0.1	-0.05		-0.1		0.32

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.171
r_dihedral_angle_4_deg	20.042
r_dihedral_angle_3_deg	12.917
r_long_range_B_refined	7.388
r_long_range_B_other	7.386
r_dihedral_angle_1_deg	5.26
r_scangle_other	2.258
r_mcangle_it	1.639
r_mcangle_other	1.638
r_angle_refined_deg	1.451
r_scbond_it	1.426
r_scbond_other	1.425
r_angle_other_deg	1.275
r_mcbond_it	0.995
r_mcbond_other	0.995
r_chiral_restr	0.097
r_bond_refined_d	0.015
r_gen_planes_refined	0.009
r_gen_planes_other	0.008
r_bond_other_d	0.007
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1821
Nucleic Acid Atoms
Solvent Atoms	256
Heterogen Atoms	48

Software

Software
Software Name	Purpose
REFMAC	refinement
PROTEUM PLUS	data reduction
SCALA	data scaling
PHASER	phasing