4OO4

Crystal Structure of Human Thioredoxin Mutant

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4	289	20% PEG 3350, 0.1 M sodium acetate, 2 mM DTT, pH 4.0, VAPOR DIFFUSION, HANGING DROP, temperature 289K

Crystal Properties
Matthews coefficient	Solvent content
1.93	36.36

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 35.269	α = 90
b = 50.182	β = 94.08
c = 51.066	γ = 90

Symmetry
Space Group	P 1 21 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	PIXEL	PSI PILATUS 6M	RH COATED FLAT MIRROR, TOROIDAL FOCUSING MIRROR	2011-01-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.9796	SSRL	BL9-2

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	0.97	50.94	84.2	0.042	18.8	3.4	88291	88291

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	0.97	1.02	44.5		0.316	2.6	1.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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 ENTRY 1ERT	0.97	35.75	83851	83851	4412	84.1	0.13726	0.13582	0.16498	RANDOM	14.371

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]
-1.12		-1.25	1.51		-0.21

RMS Deviations
Key	Refinement Restraint Deviation
r_sphericity_free	54.765
r_dihedral_angle_2_deg	32.9
r_sphericity_bonded	21.469
r_dihedral_angle_3_deg	14.126
r_long_range_B_refined	10.597
r_long_range_B_other	7.011
r_dihedral_angle_1_deg	6.099
r_rigid_bond_restr	5.264
r_scangle_other	2.697
r_scbond_it	2.51
r_scbond_other	2.42
r_mcangle_it	2.366
r_mcangle_other	2.295
r_angle_refined_deg	1.99
r_mcbond_it	1.792
r_mcbond_other	1.789
r_angle_other_deg	1.021
r_chiral_restr	0.113
r_bond_refined_d	0.018
r_gen_planes_refined	0.011
r_gen_planes_other	0.004
r_bond_other_d	0.003
r_dihedral_angle_4_deg
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1634
Nucleic Acid Atoms
Solvent Atoms	340
Heterogen Atoms

Software

Software
Software Name	Purpose
XDS	data scaling
MOLREP	phasing
REFMAC	refinement
HKL-2000	data reduction
SCALA	data scaling