Experiment: 3V9Z

Crystal structure of RNase T in complex with a product ssDNA (ACC) with one Mg in the active site

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3NGY

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.5	298	0.1M Sodium acetate trihydrate, 10%(w/v) Polyethylene glycol 1000, pH 4.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.16	43.09

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 96.422	α = 90
b = 106.092	β = 90
c = 46.952	γ = 90

Symmetry
Space Group	P 21 21 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	RAYONIX MX225HE		2010-11-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL44XU	0.9	SPring-8	BL44XU

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	1.8	30	96.4	0.091	31.92	5.4	44147	44147

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.8	1.83	100		0.362	8.6	5.8	2239

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	MOLECULAR REPLACEMENT	3NGY	1.8	28.515	1.33	43648	43648	2201	96	0.2128	0.211	0.208	0.2475	0.2435	RANDOM	17.7143

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]
1.8496			-1.8387		-0.0109

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	13.587
f_angle_d	1
f_chiral_restr	0.075
f_bond_d	0.006
f_plane_restr	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3218
Nucleic Acid Atoms	118
Solvent Atoms	632
Heterogen Atoms	3

Software

Software
Software Name	Purpose
HKL-2000	data collection
AMoRE	phasing
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling