5UTH

Crystal structure of thioredoxin reductase from Mycobacterium smegmatis in complex with FAD

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.5	290	AnatraceTop96 screen, E1: 2M Ammonium sulfate, 100mM BisTris pH 5.5: MysmA.00058.a.B1.PS38133 at 22.8mg/ml + 3mM NADP. Over night soak with 5x drop volume of FAD in reservoir: cryo: 3M Ammonium sulfate; tray 248209h3, puck xtp3-5.

Crystal Properties
Matthews coefficient	Solvent content
3.09	60.1

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 69.28	α = 90
b = 69.28	β = 90
c = 153.8	γ = 120

Symmetry
Space Group	P 31 2 1

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	RIGAKU SATURN 944+		2009-06-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-E+ SUPERBRIGHT	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	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	1.95	38.976	98.8	0.059	0.062	1	24.69	9.399		31655		-3	26.2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.95	2	93.7		0.398	0.452	0.937	3.27	4.398	2154

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	pdb entry 2a87 as found by morda	1.95	38.976	1.34	31595	1937	98.84	0.1691	0.167	0.2019	0	35.5459

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	14.487
f_angle_d	0.802
f_chiral_restr	0.056
f_bond_d	0.006
f_plane_restr	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2258
Nucleic Acid Atoms
Solvent Atoms	301
Heterogen Atoms	103

Software

Software
Software Name	Purpose
XSCALE	data scaling
XDS	data reduction
PHENIX	refinement
PDB_EXTRACT	data extraction
PHASER	phasing
Coot	model building

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.