Experiment: 1KBU

CRE RECOMBINASE BOUND TO A LOXP HOLLIDAY JUNCTION

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1CRX	combination of 1CRX and 4CRX (see publication for details)
experimental model	PDB	4CRX	combination of 1CRX and 4CRX (see publication for details)

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5	294	MPD, sodium acetate, calcium chloride, pH 5.00, VAPOR DIFFUSION, HANGING DROP, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
2.91	57.69

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 107.17	α = 90
b = 121.6	β = 90
c = 179.31	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	ADSC QUANTUM 4		2000-02-27	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	1.0	SSRL	BL9-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2.2	24.5	89	0.048	0.037	9.6	3.6	53608	53320		-3	47

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.2	2.32	89.8		0.406	0.287	2.4	2.9	7169

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	ISOMORPHOUS MOLECULAR REPLACEMENT	THROUGHOUT	combination of 1CRX and 4CRX (see publication for details)	2.2	5	53233	53233	2682	89	0.231	0.231	0.231	0.2382	0.279	0.266	RANDOM	57.8

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]

RMS Deviations
Key	Refinement Restraint Deviation
t_angle_deg	1.58
t_bond_d	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5089
Nucleic Acid Atoms	1511
Solvent Atoms	237
Heterogen Atoms

Software

Software
Software Name	Purpose
TNT	refinement
MOSFLM	data reduction
CCP4	data scaling
TNT	phasing