2FCH

Crystal Structure of Thioredoxin Mutant G74S

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	COUNTER-DIFFUSION	5.4	277	60% (v/v) MPD, Hepes 15 mM, 1 mM Ac2Cu, pH 5.4, Counter-diffusion, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.54	51.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 79.65	α = 90
b = 88.8	β = 90
c = 118.08	γ = 90

Symmetry
Space Group	P 21 21 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	BRUKER SMART 6000	Montel Optics	2005-07-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	BRUKER AXS MICROSTAR	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.6	29.65	99.2	0.0465	21.28	4.48	26472	26251			44

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.6	2.65	93.2		0.3179	3.27	1.96	1351

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 (All)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	pdb entry 2TRX_A	2.6	29.65	24866	1328	99.16	0.207	0.203	0.276	RANDOM	23.307

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]
-0.02			-0.21		0.24

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.157
r_dihedral_angle_4_deg	19.353
r_dihedral_angle_3_deg	15.681
r_dihedral_angle_1_deg	5.723
r_mcangle_it	2.001
r_scangle_it	1.663
r_mcbond_it	1.296
r_angle_refined_deg	1.237
r_scbond_it	1.13
r_nbtor_refined	0.298

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.157
r_dihedral_angle_4_deg	19.353
r_dihedral_angle_3_deg	15.681
r_dihedral_angle_1_deg	5.723
r_mcangle_it	2.001
r_scangle_it	1.663
r_mcbond_it	1.296
r_angle_refined_deg	1.237
r_scbond_it	1.13
r_nbtor_refined	0.298
r_symmetry_vdw_refined	0.207
r_nbd_refined	0.203
r_symmetry_hbond_refined	0.191
r_xyhbond_nbd_refined	0.126
r_chiral_restr	0.077
r_bond_refined_d	0.011
r_gen_planes_refined	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5659
Nucleic Acid Atoms
Solvent Atoms	119
Heterogen Atoms	56

Software

Software
Software Name	Purpose
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
PROTEUM PLUS	data reduction
SAINT	data scaling
SADABS	data scaling
XPREP	data reduction

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.