2DLA

Primase large subunit amino terminal domain from Pyrococcus horikoshii

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		seleno-methionie derivative structure(This is not deposited to PDB)

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	293	1M Ammonium Sulfate, 50mM Magnesium Sulfate, 25mM Sodium Cacodylate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.2	56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 89.25	α = 90
b = 89.25	β = 90
c = 252.674	γ = 90

Symmetry
Space Group	P 43 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	MAR CCD 165 mm		2003-07-07	M	SINGLE WAVELENGTH
2	1	x-ray	100	CCD	MAR CCD 165 mm		2003-10-21	M	MAD
1,2	1

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL41XU	1.0	SPring-8	BL41XU
2	SYNCHROTRON	SPRING-8 BEAMLINE BL41XU	0.9793, 0.9795, 0.9840, 0.9717	SPring-8	BL41XU

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	2.9	50	99.2	0.044	17	7.2	23616	23431	2	2	56.447

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	2.9	2.93	100		0.218	7.3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation 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-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD, MOLECULAR REPLACEMENT	THROUGHOUT	seleno-methionie derivative structure(This is not deposited to PDB)	2.9	20	2	23360	22869	21250		0.2482	0.24	0.3094	0.24	RANDOM	26.3411

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]
-5			-5		10.001

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	20.49354
c_angle_deg	1.36362
c_improper_angle_d	0.79216
c_bond_d	0.00829

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5272
Nucleic Acid Atoms
Solvent Atoms	17
Heterogen Atoms

Software

Software
Software Name	Purpose
HKL-2000	data reduction
MLPHARE	phasing
CNS	refinement
HKL-2000	data scaling

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.