Nature - USA (2019-07-18)

(Antfer) #1

reSeArCH Letter


Extended data table 1 | data collection and refinement statistics


a, Crystallographic data


Mgm1, SeMet
pdb code 6QL4
Data collection
Space group P4 1 22, 1 dimer/ASU
Cell dimensions
a, b, c (Å) 147.4, 147.4, 344.7
α, β, γ(°) 90, 90, 90
Wavelength 0.9794 Å
Resolution (Å)* 3.60 (3.60-3.69)
Rsym* (%) 22.0 (184)
I /σI* 8.0 (1.1)
Completeness (%)* 99.8 (98.4)
Redundancy 6.7

Refinement
Resolution (Å) 49.1 – 3.6
No. reflections 44,814
Rwork / Rfree 24.4 / 25.2
No. atoms
Protein 10,332
Ligand/ion 2
Water 0
B-factors
Protein 212 Å
2

Ligand/ion 101 Å
2

Water -
R.m.s deviations
Bond lengths (Å) 0.004
Bond angles (°) 0.986

b, Cryo-ET data


Mgm1+GTPγS
Outside

(EMDB-10063)

Apo Mgm1
Outside

(EMDB-10062)

Apo Mgm1
Outside,
overall tube
(EMDB-4584)

Mgm1+GTPγS
Inside

(EMDB-10065)

Apo Mgm1
Inside

(EMDB-10064)
Data collection
and processing
Magnification 53,000 53,000 53,000 53,000 53,000
Voltage (kV) 300 300 300 300 300
Electron exposure (e



  • 2
    )
    Per tomogram


90 – 100 90 – 100 90 – 100 90 – 100 90 – 100

Defocus range (μm) 2 - 4 2 - 4 2 - 4 2 - 4 2 - 4
Pixel size (Å) 2.7 2.7 2.7 2.7 2.7
Symmetry imposed No No No No No
Initial particle images (no.) 71,884 12,440 2,214 4,751 1,874
Final particle images (no.) 9,471 11,474 1,677 1,820 1,792
Map resolution (Å)
FSC threshold

14.7
0.143

14.7
0.143

20.4
0.143

18.8
0.143

20.6
0.143

a, Data collection and refinement statistics for the crystallographic data.
b, Data collection and processing statistics for cryo-ET data.
*Values in parentheses are for the highest-resolution shell. The data were collected from a single crystal.

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