1TYB

STRUCTURAL ANALYSIS OF A SERIES OF MUTANTS OF TYROSYL-TRNA SYNTHETASE: ENHANCEMENT OF CATALYSIS BY HYDROPHOBIC INTERACTIONS

X-RAY DIFFRACTION

Crystallization

Crystal Properties
Matthews coefficient	Solvent content
3.93	68.68

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 64.46	α = 90
b = 64.46	β = 90
c = 237.6	γ = 120

Symmetry
Space Group	P 31 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

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Free (Depositor)	Mean Isotropic B
X-RAY DIFFRACTION		2.5		18193			0.23

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
p_staggered_tor	17.2
p_scangle_it	3.7
p_mcangle_it	2.82
p_scbond_it	2.54
p_mcbond_it	1.81
p_multtor_nbd	0.26
p_singtor_nbd	0.18
p_chiral_restr	0.106
p_angle_d	0.032
p_planar_d	0.031

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2460
Nucleic Acid Atoms
Solvent Atoms	165
Heterogen Atoms	13

Software

Software
Software Name	Purpose
PROLSQ	refinement

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 R01GM157729.