3DU5

Structure of the catalytic subunit of telomerase, TERT

X-RAY DIFFRACTION

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Crystallization

Crystal Properties
Matthews coefficient	Solvent content
3.94	68.79

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 199.968	α = 90
b = 199.968	β = 90
c = 96.413	γ = 120

Symmetry
Space Group	P 61

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	298	CCD	ADSC QUANTUM 210			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X6A		NSLS	X6A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	3.25	20	98.6	0.149	6.4	2.8		41653	2

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	3.25	20	32773	1748	99.6	0.24605	0.24332	0.29655	RANDOM	37.73

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]
-0.18	-0.09		-0.18		0.27

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.278
r_dihedral_angle_3_deg	17.417
r_dihedral_angle_4_deg	14.623
r_dihedral_angle_1_deg	3.822
r_mcangle_it	0.828
r_angle_refined_deg	0.735
r_scangle_it	0.567
r_mcbond_it	0.461
r_scbond_it	0.336
r_nbtor_refined	0.313
r_nbd_refined	0.22
r_symmetry_vdw_refined	0.2
r_xyhbond_nbd_refined	0.129
r_symmetry_hbond_refined	0.128
r_chiral_restr	0.052
r_bond_refined_d	0.006
r_gen_planes_refined	0.002
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	9964
Nucleic Acid Atoms
Solvent Atoms	77
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
ADSC	data collection
MOSFLM	data reduction
SCALA	data scaling
PHASES	phasing