1B77

BUILDING A REPLISOME STRUCTURE FROM INTERACTING PIECES: A SLIDING CLAMP COMPLEXED WITH AN INTERACTION PEPTIDE FROM DNA POLYMERASE

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		PRELIMINARY COORDINATE OF T4 GP45 FROM J. KURIYAN

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5		16-18% PEG 8000, 0.2 M CA ACETATE PH7.5

Crystal Properties
Matthews coefficient	Solvent content
2.8	47

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 65.9	α = 90
b = 87.6	β = 90
c = 138.2	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	ADSC	SILICON 111 BENDING MIRROR	1997-11-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CHESS BEAMLINE A1		CHESS	A1

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	2.1	20	94.9	0.07	6.6	3.2		47361		2	15

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PRELIMINARY COORDINATE OF T4 GP45 FROM J. KURIYAN	2.1	20	45020	4506	94.9	0.225	0.269	RANDOM	32.4

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]
3.12			1.85		-4.96

RMS Deviations
Key	Refinement Restraint Deviation
x_dihedral_angle_d	24.7
x_scangle_it	1.32
x_angle_deg	1.3
x_mcangle_it	0.97
x_scbond_it	0.85
x_improper_angle_d	0.65
x_mcbond_it	0.54
x_bond_d	0.006
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5298
Nucleic Acid Atoms
Solvent Atoms	713
Heterogen Atoms

Software

Software
Software Name	Purpose
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
CNS	phasing