Experiment: 7NQ4

Human tRNA guanine transglycosylase (TGT), RNA-bound covalent intermediate

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	6H42	6H42, 6FV5
experimental model	PDB	6FV5	6H42, 6FV5

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		277.15	PEG 1500, MMT pH 6

Crystal Properties
Matthews coefficient	Solvent content
	38.38

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 161.84	α = 90
b = 56.96	β = 124.935
c = 102.96	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	93.15	PIXEL	DECTRIS PILATUS3 S 6M		2020-02-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.1	0.918400	BESSY	14.1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	Rrim 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	2.88	42.2	81.6	0.116	0.999	13.83	6.788		17591			67.811

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.88	2.98	99.8		0.876	1.81	6.985

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-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	6H42, 6FV5	2.88	42.2	1.34	17550	878	99.17	0.2135	0.2117	0.2125	0.2484	0.2531

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	15.4625
f_angle_d	1.4142
f_chiral_restr	0.0965
f_bond_d	0.0075
f_plane_restr	0.0044

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5965
Nucleic Acid Atoms	414
Solvent Atoms	4
Heterogen Atoms	13

Software

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