4GWQ | pdb_00004gwq

Structure of the Mediator Head Module from S. cerevisiae in complex with the carboxy-terminal domain (CTD) of RNA Polymerase II Rpb1 subunit

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7	291.2	275mM ammonium citrate tribasic pH 7.0, 10% w/v PEG 3350, 2mM DTT, VAPOR DIFFUSION, HANGING DROP, temperature 291.2K

Crystal Properties
Matthews coefficient	Solvent content
3.68	66.62

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 142.449	α = 90
b = 142.449	β = 90
c = 305.641	γ = 120

Symmetry
Space Group	P 32 2 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	MARMOSAIC 325 mm CCD		2010-02-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1		SSRL	BL11-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	4.5	123.365	99.8				21971		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	4.5	4.7	100		4.5	14.7

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MIRAS	THROUGHOUT	4.5	45	21985	20920	1130	99.9	0.289	0.286	0.29	0.345	0.35	RANDOM	181.17

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]
4.22	2.11		4.22		-6.33

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.397
r_dihedral_angle_4_deg	18.546
r_dihedral_angle_3_deg	17.831
r_dihedral_angle_1_deg	7.581
r_angle_refined_deg	1.56
r_chiral_restr	0.093
r_bond_refined_d	0.01
r_gen_planes_refined	0.005
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_it
r_mcbond_other
r_mcangle_it
r_scbond_it
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	9217
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms

Software

Software
Software Name	Purpose
Blu-Ice	data collection
SHARP	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling