1JKP

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), 5 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), 50 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
2.72	53.11

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 85.362	α = 90
b = 81.543	β = 90
c = 45.39	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	2.8	42.7	91.23	0.077	16.9	13		3774			43

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)
	2.8	2.93	76.37		0.218	4.06	3

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	2.8	42.7	3774	402	91.23	0.2477	0.2477	0.3277	RANDOM	54.1

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]
12.54			12.184		-24.724

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	19.085
c_scangle_it	15.19
c_scbond_it	10.7
c_mcangle_it	10.27
c_mcbond_it	6.93
c_improper_angle_d	1.6
c_angle_deg	1.364
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	379
Nucleic Acid Atoms	576
Solvent Atoms	4
Heterogen Atoms

Software

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