5B42

Crystal structure of the C-terminal endonuclease domain of Aquifex aeolicus MutL.

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.6	293.15	14.7mg/ml protein, 100mM sodium acetate, 50mM cadmium chloride, and 15%(v/v) polyethylene glycol 400

Crystal Properties
Matthews coefficient	Solvent content
2.04	39.79

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 35.349	α = 90
b = 35.349	β = 90
c = 161.56	γ = 90

Symmetry
Space Group	P 43 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	100	CCD	RAYONIX MX225HE		2015-12-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL38B1	1.0000	SPring-8	BL38B1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	CC (Half)	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	1.35	24.702	100	0.056	0.037	0.821	59.8	13.5		23801

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	1.35	1.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	SAD	FREE R-VALUE	1.35	24.702	1.35	22100	1139	93.4	0.1422	0.14	0.1834

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
f_dihedral_angle_d	22.682
f_angle_d	1.168
f_chiral_restr	0.084
f_bond_d	0.011
f_plane_restr	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	861
Nucleic Acid Atoms
Solvent Atoms	95
Heterogen Atoms	20

Software

Software
Software Name	Purpose
PHENIX	refinement
PHENIX	model building
HKL-2000	data reduction
HKL-2000	data scaling
PHENIX	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.