1JJ8

Testing the Water-Mediated HIN Recombinase DNA Recognition by Systematic Mutations

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6		0.08 MM DNA, 0.04 MM HIN, 25 MM NA ACETATE (PH 4.6), 25 MM MGCL2, 8 MM NACL, 6.3% V/V PEG400, AND 1.25 MM NA CACODYLATE. RESERVOIR SOLUTION CONTAINS 100 MM NA ACETATE (PH 4.6), 100 MM MGCL2, AND 25% PEG400. CONCENTRATION OF PEG400 IN RESERVOIR SOLUTION WAS INCREASED IN 5% INCREMENTS TO 35%. CONDITIONS FOR NATIVE ARE THE SAME EXCEPT THE CONCENTRATION OF MGCL2 IS 5 TIMES SMALLER., pH 4.60, VAPOR DIFFUSION, HANGING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.423	47.27

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 66.328	α = 90
b = 68.693	β = 90
c = 62.136	γ = 90

Symmetry
Space Group	C 2 2 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	IMAGE PLATE	RIGAKU		1995-09-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE

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	2.75	25	96.49	0.081	19.6	15		3765		1	44

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	2.75	2.87	91.64		0.267	4.5	4.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	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	SIRAS	SIRAS PHASES	2.75	25	3765	369	96.49	0.2134	0.2134	0.2771	RANDOM	45

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]
9.45			-5.107		-4.343

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	19.41
c_scangle_it	3.63
c_mcangle_it	2.45
c_scbond_it	2.32
c_mcbond_it	1.49
c_improper_angle_d	1.45
c_angle_deg	1.3
c_bond_d	0.009
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

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	375
Nucleic Acid Atoms	552
Solvent Atoms	12
Heterogen Atoms

Software

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