3O2Q

Crystal structure of the human symplekin-Ssu72-CTD phosphopeptide complex

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	293	1.6M ammonium chloride, 27% (w/v) PEG 3350, 10mM Sodium potassium tartrate, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.62	53.08

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 67.045	α = 90
b = 97.581	β = 98.66
c = 105.008	γ = 90

Symmetry
Space Group	P 1 21 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 315r		2010-06-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X29A		NSLS	X29A

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	2.4	30	99.6	0.078	11.8192	3.3		52139

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)
	2.4	2.49	99.9		0.405	2.433	3.3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	2.4	30	49442	2659	99.51	0.1871	0.18414	0.24159	RANDOM	36.228

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]
2.26		0.45	-2.2		0.08

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.884
r_dihedral_angle_4_deg	22.894
r_dihedral_angle_3_deg	18.464
r_dihedral_angle_1_deg	5.798
r_scangle_it	4.866
r_scbond_it	2.839
r_angle_refined_deg	1.615
r_mcangle_it	1.491
r_mcbond_it	0.728
r_chiral_restr	0.109
r_bond_refined_d	0.016
r_gen_planes_refined	0.007
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
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_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8127
Nucleic Acid Atoms
Solvent Atoms	250
Heterogen Atoms	5

Software

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