1C1A

CRYSTAL STRUCTURE OF RSV TWO-DOMAIN INTEGRASE

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1				ROD-SHAPED CRYSTALS WERE GROWN BY SITTING DROP VAPOR DIFFUSION METHOD. RESERVOIR SOLUTION CONTAINED 0.050M KCL, 0.01M MGCL2, 0.1M SODIUM CACODYLATE, 0.02M IMIDAZOLE, PH 7.2, 10% PEG3350, AND 20% (V/V) ETHYLENE GLYCOL. THE DROP CONTAINED 1:1 MIXTURE OF RESERVOIR SOLUTION AND PROTEIN (10-15 MG/ML)

Crystal Properties
Matthews coefficient	Solvent content
2.66	41.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 66.24	α = 90
b = 46.339	β = 101.76
c = 94.309	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	95	CCD	ADSC QUANTUM 4		1998-11-17	M	MULTIPLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X9B		NSLS	X9B

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	3	15	98.6	0.06	15.6	3.4		11250		0.04	43.3

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	3	3.11	96.5		0.177	5.5	2.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD PHASING	THROUGHOUT	ASV INTEGRASE CATALYTIC DOMAIN (1VSE)	3.1	15	0.2	10183	525	5.1	0.256	0.256	0.337	RANDOM	48

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]
0.817		-10.779	-3.077		2.26

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	24
c_angle_deg	1.41
c_improper_angle_d	0.97
c_bond_d	0.01
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot
c_mcbond_it
c_mcangle_it
c_scbond_it
c_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3397
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms

Software

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