4CGY

Crystal structure of the human topoisomerase III alpha-RMI1 complex

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1ECL	PDB ENTRIES 1ECL AND 3NBI
experimental model	PDB	3NBI	PDB ENTRIES 1ECL AND 3NBI

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7		8-12% (W/V) PEG 2000, 100 MM TRIS-HCL PH 7.0, 200 MM MGCL2

Crystal Properties
Matthews coefficient	Solvent content
5.4	77

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 94.01	α = 90
b = 94.01	β = 90
c = 381.69	γ = 90

Symmetry
Space Group	P 41 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	10	PIXEL	DECTRIS PILATUS 6M	DYNAMICALLY BENDABLE MIRROR	2010-09-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X10SA		SLS	X10SA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	2.85	62.78	100	0.15	16.7	100		41328		-3	93.75

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.85	2.97	100		2.2	14.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation 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	THROUGHOUT	PDB ENTRIES 1ECL AND 3NBI	2.85	65.49	41229	2075	99.96	0.1989	0.1973	0.231	RANDOM	80.28

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]
-8.6474			-8.6474		17.2947

RMS Deviations
Key	Refinement Restraint Deviation
t_other_torsion	3.05
t_omega_torsion	2.69
t_angle_deg	1.04
t_bond_d	0.009
t_dihedral_angle_d
t_incorr_chiral_ct
t_pseud_angle
t_trig_c_planes
t_gen_planes
t_it
t_nbd
t_improper_torsion
t_chiral_improper_torsion
t_sum_occupancies
t_utility_distance
t_utility_angle
t_utility_torsion
t_ideal_dist_contact

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6557
Nucleic Acid Atoms
Solvent Atoms	44
Heterogen Atoms	1

Software

Software
Software Name	Purpose
BUSTER	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing