Experiment: 3UPU

Crystal structure of the T4 Phage SF1B Helicase Dda

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	291.1	4.5% w/v PEG8000, 8% v/v ethylene glycol, 0.1 M HEPES, pH 6.5, 20 mM DTT, VAPOR DIFFUSION, HANGING DROP, temperature 291.1K

Crystal Properties
Matthews coefficient	Solvent content
3.26	62.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 225.536	α = 90
b = 107.253	β = 94.128
c = 85.475	γ = 90

Symmetry
Space Group	C 1 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	77.2	CCD	MARMOSAIC 300 mm CCD		2009-06-19	M	SINGLE WAVELENGTH
2	1	x-ray	77.2	CCD	MARMOSAIC 225 mm CCD		2010-10-29	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID	0.9793	APS	22-ID
2	SYNCHROTRON	APS BEAMLINE 22-BM	1.0	APS	22-BM

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	3.299	36.035	95.8	0.092	19.82	7.1		29389			92.36

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	3.299	3.42	71.4		0.473	2.05	4.5

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)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	3.299	32.271	29389	1392	91.06	0.2065	0.2038	0.201	0.2576	0.2538	RANDOM	110.0717

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]
0.8054		-7.0719	19.6229		-20.4283

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	18.449
f_angle_d	0.916
f_chiral_restr	0.061
f_bond_d	0.004
f_plane_restr	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	10566
Nucleic Acid Atoms	471
Solvent Atoms	10
Heterogen Atoms

Software

Software
Software Name	Purpose
PHENIX	refinement
PDB_EXTRACT	data extraction
SERGUI	data collection
HKL-2000	data reduction
HKL-2000	data scaling
PHENIX	phasing