Experiment: 5UTH

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

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2A87	pdb entry 2a87 as found by morda

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	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	0.1697	0.2019	0.2049	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