4JEB

Crystal structure of an engineered RIDC1 tetramer with four interfacial disulfide bonds and four three-coordinate Zn(II) sites

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	293	35% methyl-pentandiol, 0.1M HEPES pH 7.5, 0.2M NaCl, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.74	55.17

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.942	α = 90
b = 54.942	β = 90
c = 145.658	γ = 120

Symmetry
Space Group	P 31 1 2

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	MARMOSAIC 325 mm CCD	K-B focusing mirrors	2012-07-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL12-2	0.98	SSRL	BL12-2

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	2.158	48.553	96.9	0.094	6.5	5.2	13468	13468	2	2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.16	2.28	84.9		0.692	0.692	1.1	4.5	1701

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	3IQ6	2.3	48.55	13468	11374	812	98.8	0.2479	0.2436	0.3088	RANDOM	57.6607

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]
2.79	1.39		2.79		-4.18

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.469
r_dihedral_angle_4_deg	24.698
r_dihedral_angle_3_deg	17.708
r_dihedral_angle_1_deg	5.196
r_scangle_it	3.977
r_scbond_it	2.497
r_mcangle_it	1.737
r_angle_refined_deg	1.56
r_mcbond_it	0.916
r_chiral_restr	0.106

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.469
r_dihedral_angle_4_deg	24.698
r_dihedral_angle_3_deg	17.708
r_dihedral_angle_1_deg	5.196
r_scangle_it	3.977
r_scbond_it	2.497
r_mcangle_it	1.737
r_angle_refined_deg	1.56
r_mcbond_it	0.916
r_chiral_restr	0.106
r_bond_refined_d	0.019
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1614
Nucleic Acid Atoms
Solvent Atoms	39
Heterogen Atoms	89

Software

Software
Software Name	Purpose
SCALA	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
Blu-Ice	data collection
MOSFLM	data reduction
PHASER	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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.