1JKR

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	8.5		HANGING DROP VAPOR DIFFUSION AT 4C, WITH INITIAL CONCENTRATION IN DROP OF 0.10 MM DNA, 0.06 MM HIN, 10 MM TRIS (PH 8.5), 10 MM CACL2, 23 MM NACL, 2.5% V/V PEG400, AND 1.56 MM NA CACODYLATE. RESERVOIR SOLUTION CONTAINS 100 MM TRIS (PH 8.5), 100 MM CACL2, 100 MM NACL, AND 25% PEG400. CONCENTRATION OF PEG400 IN RESERVOIR SOLUTION WAS INCREASED IN 5% INCREMENTS TO 35%., pH 8.50, VAPOR DIFFUSION, HANGING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.76	53.78

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 86.087	α = 90
b = 82.708	β = 90
c = 44.865	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	CCD			1997-08-01	M	MOLECULAR REPLACEMENT WITH 1IJW HAVING THE PROPER DNA SUBSTITUTIONS AS THE STARTING MODEL.

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	2.28	24.8	93.23	0.89	15.68	17		7102			69

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)
	2.28	2.38	72.14		0.252	2.49	2.6

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	MOLECULAR REPLACEMENT	1IJW	2.28	24.8	7102	707	93.23	0.2687	0.2687	0.3245	RANDOM	60.2

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]
15.107			2.251		-17.359

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	19.44
c_scangle_it	15.66
c_scbond_it	11.62
c_mcangle_it	11.44
c_mcbond_it	8.51
c_improper_angle_d	1.882
c_angle_deg	1.72
c_bond_d	0.013
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	353
Nucleic Acid Atoms	576
Solvent Atoms	2
Heterogen Atoms	8

Software

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