2HZE

Crystal structures of a poxviral glutaredoxin in the oxidized and reduced states show redox-correlated structural changes

X-RAY DIFFRACTION

---

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	3.6	295	0.1 M NaCacodylate pH 5.2, 12.5% MPD, 10 mM Tris pH 8.0, 50 mM NaCl. Cryo solution containing 0.1 M NaCacodylate pH 5.2, 40% MPD and 50 mM GSH added 5 minutes before flash-freezing., pH 3.6, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.13	42.38

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62.627	α = 90
b = 66.668	β = 90
c = 108.096	γ = 90

Symmetry
Space Group	C 2 2 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	ADSC QUANTUM 210		2005-09-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1	1.1	ALS	8.3.1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.8	54.07	99.6			21297	21297	3.97	1.76

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.8	1.87	97.3

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1KTE	1.8	19.54	21297	21297	1065	99.68	0.18679	0.18679	0.18568	0.20804	RANDOM	28.305

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
r_dihedral_angle_2_deg	34.986
r_dihedral_angle_4_deg	22.222
r_dihedral_angle_3_deg	16.221
r_scangle_it	8.611
r_dihedral_angle_1_deg	5.971
r_scbond_it	5.96
r_angle_other_deg	3.61
r_mcangle_it	3.311
r_mcbond_it	2.066
r_angle_refined_deg	1.906
r_chiral_restr	0.573
r_symmetry_vdw_other	0.337
r_symmetry_hbond_refined	0.266
r_nbd_other	0.238
r_nbd_refined	0.213
r_xyhbond_nbd_refined	0.175
r_symmetry_vdw_refined	0.142
r_nbtor_other	0.107
r_bond_refined_d	0.021
r_gen_planes_other	0.01
r_gen_planes_refined	0.007
r_bond_other_d
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1757
Nucleic Acid Atoms
Solvent Atoms	129
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
ADSC	data collection
MOSFLM	data reduction
CCP4	data scaling
XFIT	data reduction