8I4I

The asymmetric structure of homodimeric E. coli TrpRS bound with tryptophanyl adenylate and L-tryptophan

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		290	0.16M Ammonium sulfate, 0.1M HEPES pH 7.5, 25% PEG 3350

Crystal Properties
Matthews coefficient	Solvent content
2.39	48.56

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 61.664	α = 90
b = 80.048	β = 106.2
c = 77.435	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	110	PIXEL	RIGAKU HyPix-6000HE		2022-06-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007 HF	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	Rrim I (All)	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	2.2	50	99.9	0.131	0.055	0.993	12.7	5.4		36816

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.2	2.32		100	0.556	0.278	0.826		3.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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	5V0I	2.2	50	34885	1917	99.88	0.20797	0.20679	0.229	RANDOM	21.006

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]
-1.52		0.17	1.92		-0.43

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.203
r_dihedral_angle_4_deg	15.005
r_dihedral_angle_3_deg	11.922
r_dihedral_angle_1_deg	5.096
r_long_range_B_other	1.735
r_long_range_B_refined	1.734
r_angle_refined_deg	1.11
r_angle_other_deg	0.873
r_mcangle_it	0.766
r_mcangle_other	0.766
r_scangle_other	0.527
r_mcbond_it	0.413
r_mcbond_other	0.413
r_scbond_it	0.277
r_scbond_other	0.277
r_chiral_restr	0.057
r_bond_refined_d	0.006
r_gen_planes_refined	0.003
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5015
Nucleic Acid Atoms
Solvent Atoms	246
Heterogen Atoms	62

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALA	data scaling
MOLREP	phasing
CrysalisPro	data reduction