2HOF

Crystal structure of the pre-cleavage synaptic complex in the cre-loxp site-specific recombination

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.6	291	MPD, SODIUM ACETATE, CALCIUM CHLORIDE, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.95	58.36

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 107.625	α = 90
b = 122.13	β = 90
c = 178.748	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	MONOCHROMATOR	2003-03-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.1	1.078	ALS	8.2.1

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	2.4	50	99.1	0.06	0.05	13.7		46082	45638

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)
	2.4	2.44	98.8		0.397	0.332			2255

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1CRX	2.4	29.96	46082	45516	2309	98.77	0.24	0.24	0.209	0.263	RANDOM	52.607

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]
0.01					-0.02

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.272
r_dihedral_angle_3_deg	18.219
r_dihedral_angle_4_deg	16.001
r_dihedral_angle_1_deg	6.498
r_scangle_it	2.413
r_angle_refined_deg	1.452
r_scbond_it	1.427
r_mcangle_it	1.028
r_mcbond_it	0.605
r_nbtor_refined	0.293

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.272
r_dihedral_angle_3_deg	18.219
r_dihedral_angle_4_deg	16.001
r_dihedral_angle_1_deg	6.498
r_scangle_it	2.413
r_angle_refined_deg	1.452
r_scbond_it	1.427
r_mcangle_it	1.028
r_mcbond_it	0.605
r_nbtor_refined	0.293
r_symmetry_vdw_refined	0.203
r_nbd_refined	0.184
r_xyhbond_nbd_refined	0.163
r_symmetry_hbond_refined	0.136
r_chiral_restr	0.071
r_bond_refined_d	0.008
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4963
Nucleic Acid Atoms	1394
Solvent Atoms	501
Heterogen Atoms

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
AMoRE	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.