Experiment: 4G6S

Minimal Hairpin Ribozyme in the Transition State with A38P Variation

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	295	22% (w/v) PEG 2000 MME, 0.1M HEPES pH=7.0, 0.25 M Lithium Sulfate, 1mM Cobalt Hexamine, 2mM spermadine, vapor diffusion, Hanging Drop, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
4.32	71.55

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 93.966	α = 90
b = 93.966	β = 90
c = 134.171	γ = 120

Symmetry
Space Group	P 61 2 2

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	Rh coated flat mirror	2010-02-05		SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.97885	SSRL	BL11-1

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	2.84	50	98.7	0.052	16	6.9		8742

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	2.84	2.94	94.7		0.705		6.6	820

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	2.84	30.097	8345	423	94.69	0.1881	0.1863	0.181	0.2224	89.0083

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]
-23.0949			-23.0949		46.1898

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	18.036
f_angle_d	0.966
f_chiral_restr	0.058
f_plane_restr	0.008
f_bond_d	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms
Nucleic Acid Atoms	1308
Solvent Atoms	3
Heterogen Atoms	19

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
Blu-Ice	data collection
HKL-2000	data reduction
PHENIX	phasing