2GXB

Crystal Structure of The Za Domain bound to Z-RNA

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	3.6	292	40% PEG600, 100mM Sodium Acetate, pH 3.6, VAPOR DIFFUSION, HANGING DROP, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
2.25	45.41

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 73.603	α = 90
b = 92.776	β = 90
c = 50.229	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 315		2005-10-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97	APS	19-ID

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	2.25	25	90.7	0.075		5.1		7511

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)
	2.25	2.308	92.5		0.197		5.1

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: 1QBJ	2.25	25	7499	6769	730	88.47	0.19908	0.19436	0.24392	RANDOM	19.895

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]
-0.93			-1.01		1.95

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.482
r_dihedral_angle_4_deg	25.514
r_dihedral_angle_3_deg	18.361
r_dihedral_angle_1_deg	4.848
r_scangle_it	2.985
r_angle_other_deg	2.783
r_scbond_it	1.868
r_mcangle_it	1.36
r_angle_refined_deg	1.198
r_mcbond_it	0.705
r_symmetry_vdw_refined	0.256
r_symmetry_vdw_other	0.233
r_nbd_refined	0.21
r_nbd_other	0.209
r_xyhbond_nbd_refined	0.188
r_nbtor_refined	0.185
r_symmetry_hbond_refined	0.101
r_nbtor_other	0.099
r_metal_ion_refined	0.094
r_chiral_restr	0.053
r_mcbond_other	0.025
r_bond_refined_d	0.007
r_gen_planes_refined	0.003
r_gen_planes_other	0.002
r_bond_other_d
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	968
Nucleic Acid Atoms	277
Solvent Atoms	157
Heterogen Atoms	3

Software

Software
Software Name	Purpose
SCALA	data scaling
EPMR	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
CCP4	data scaling