3KYL

Structure of the catalytic subunit of telomerase bound to its RNA template and telomeric DNA

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	291	0.1 M Hepes 7.5, 10% PEG 4K, 0.2M KCl, VAPOR DIFFUSION, SITTING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.6	52.61

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 77.231	α = 90
b = 52.782	β = 101.9
c = 101.609	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	175				2009-04-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X25	0.97880	NSLS	X25

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	2.7	25.51	93.26	0.114	7.9	2.8		19815	2	2

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	2.7	2.85	92.3		0.458	2.3	2.8

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	2.7	25.51	19815	1030	93.26	0.24456	0.24234	0.28711	RANDOM	41.593

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]
4.24		2.05	-1.5		-1.9

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.23
r_dihedral_angle_3_deg	17.548
r_dihedral_angle_4_deg	12.517
r_dihedral_angle_1_deg	5.516
r_scangle_it	0.94
r_angle_refined_deg	0.833
r_mcangle_it	0.667
r_scbond_it	0.575
r_mcbond_it	0.375
r_nbtor_refined	0.307
r_nbd_refined	0.192
r_xyhbond_nbd_refined	0.152
r_symmetry_vdw_refined	0.145
r_symmetry_hbond_refined	0.081
r_chiral_restr	0.062
r_bond_refined_d	0.006
r_gen_planes_refined	0.003
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	4983
Nucleic Acid Atoms	496
Solvent Atoms	55
Heterogen Atoms	1

Software

Software
Software Name	Purpose
REFMAC	refinement
PHASER	phasing
ELVES	refinement
MOSFLM	data reduction
SCALA	data scaling