Experiment: 8DCF

RNA ligase RtcB from Pyrococcus horikoshii in complex with Cu2+ and GTP

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4ISZ

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		295	apoenzyme: 0.12 mM protein, 2.05 M ammonium sulfate, 0.2 M lithium sulfate soak: 2.1 M ammonium sulfate, 0.2 M lithium sulfate, 10 mM CuCl2, 10 mM GTP soak duration: 60 min cryoprotectant: 2.0 M ammonium sulfate, 0.2 M lithium sulfate, 10 mM CuCl2, 5 mM GTP, 19.5 % (w/v) sucrose

Crystal Properties
Matthews coefficient	Solvent content
3.75	67.23

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 81.105	α = 90
b = 137.828	β = 90
c = 149.755	γ = 90

Symmetry
Space Group	P 21 21 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	PIXEL	DECTRIS EIGER X 16M		2021-09-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 24-ID-E	0.9792	APS	24-ID-E

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	Rpim I (All)	CC (Half)	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	2.42	49.92	99.9	0.043	0.998	14.8	14		64774			47.6

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.42	2.48	100		0.335	0.773	2.1	14

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	4ISZ	2.42	49.56	1.34	64699	6251	99.93	0.1671	0.1651	0.204	0.2024	59.23

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
f_dihedral_angle_d	12.7551
f_angle_d	0.984
f_chiral_restr	0.0574
f_plane_restr	0.0101
f_bond_d	0.0075

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7518
Nucleic Acid Atoms
Solvent Atoms	116
Heterogen Atoms	225

Software

Software
Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing