1JKO

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	7.5		HANGING DROP VAPOR DIFFUSION AT 4C, WITH INITIAL CONCENTRATION IN DROP OF 0.10 MM DNA, 0.06 MM HIN, 10 MM HEPES (PH 7.5), 5 MM CACL2, 13 MM NACL, 2.8% V/V PEG400, AND 1.56 MM NA CACODYLATE. RESERVOIR SOLUTION CONTAINS 100 MM HEPES (PH 7.5), 50 MM CACL2, AND 25% PEG400. CONCENTRATION OF PEG400 IN RESERVOIR SOLUTION WAS INCREASED IN 5% INCREMENTS TO 35%., pH 7.50, VAPOR DIFFUSION, HANGING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.65	51.74

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 85.612	α = 90
b = 81.996	β = 90
c = 43.734	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	MAR scanner 300 mm plate		1997-09-01	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	NSLS BEAMLINE X25		NSLS	X25

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	2.24	14	81.27	0.068	19.7	15		6235			67

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)
	2.24	2.34	50.8		0.215	2.1	1.49

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	2.24	14	6235	630	81.27	0.2439	0.2439	0.3057	RANDOM	64

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]
19.38			2.14		-21.52

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	19.443
c_scangle_it	9.24
c_mcangle_it	6.22
c_scbond_it	6.1
c_mcbond_it	4.09
c_improper_angle_d	1.489
c_angle_deg	1.251
c_bond_d	0.007
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	323
Nucleic Acid Atoms	568
Solvent Atoms	13
Heterogen Atoms	8

Software

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