2HHQ | pdb_00002hhq

O6-methyl-guanine:T pair in the polymerase-10 basepair position

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.8	290	45% saturated ammonium sulfate, 2.5% MPD, 100mM MES, pH 5.8, VAPOR DIFFUSION, HANGING DROP, temperature 290K

Crystal Properties
Matthews coefficient	Solvent content
2.86	56.95

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 86.792	α = 90
b = 93.274	β = 90
c = 106.018	γ = 90

Symmetry
Space Group	P 21 21 21

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 225 mm CCD		2005-03-29	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-BM	1.000	APS	19-BM

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	1.54	50	96.1	0.096	13.8	7.1	122488	122488	-3		23.31

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	1.54	1.68	92		0.755	2.7	6.6	26672

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	1.8	50	80300	80300	4090	100	0.212	0.2137	0.244	0.2452	random	25.417

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]
-11.392			4.332		7.06

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	22.5
c_angle_d	1.155
c_improper_angle_d	0.97
c_bond_d	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4650
Nucleic Acid Atoms	572
Solvent Atoms	537
Heterogen Atoms	85

Software

Software
Software Name	Purpose
XSCALE	data processing
CNS	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
XSCALE	data scaling
CNS	phasing