2HXK

Crystal structure of S-nitroso thioredoxin

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1ERT	PDB ENTRY 1ERT

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	298	32% PEG 1500, 50 mM sodium phosphate, ethanol, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
1.66	25.13

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 116.35	α = 90
b = 25.74	β = 98.2
c = 86.02	γ = 90

Symmetry
Space Group	C 1 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	IMAGE PLATE	RIGAKU RAXIS IV	osmic mirrors	2006-03-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU300	1.5418

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	1.65	24.2	99	0.04	16.1	2.7	29229	29229			26

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)
	1.65	1.71	99.9		0.14	3.6	2.2	3122

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	1.65	24.2	29229	29229	1576	98.88	0.19714	0.19489	0.23919	RANDOM	13.156

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]
-0.37		0.01	0.24		0.13

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	27.805
r_dihedral_angle_3_deg	15.869
r_dihedral_angle_1_deg	5.877
r_scangle_it	4.1
r_scbond_it	2.988
r_angle_refined_deg	1.861
r_mcangle_it	1.82
r_mcbond_it	1.624
r_angle_other_deg	1.068
r_mcbond_other	0.384
r_symmetry_vdw_refined	0.297
r_xyhbond_nbd_refined	0.261
r_symmetry_vdw_other	0.245
r_nbd_refined	0.23
r_nbd_other	0.189
r_chiral_restr	0.181
r_nbtor_refined	0.175
r_symmetry_hbond_refined	0.153
r_nbtor_other	0.088
r_bond_refined_d	0.021
r_gen_planes_refined	0.008
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2741
Nucleic Acid Atoms
Solvent Atoms	152
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
CrystalClear	data collection
CrystalClear	data reduction
CrystalClear	data scaling
MOLREP	phasing