Quaternary structure changes control ribonuclease activity of Escherichia coli RnlA toxin

Gabriela Garcia-Rodriguez Submitted to SASBDB: 2020 Mar 5
Published in SASBDB:

SASDHW7 – RnlA-RnlB toxin-antitoxin complex (mRNA endoribonuclease toxin LS : Antitoxin RnlB)

mRNA endoribonuclease toxin LSAntitoxin RnlB (C-terminal His-tagged) experimental SAS data
mRNA endoribonuclease toxin LS Antitoxin RnlB (C-terminal His-tagged) Kratky plot
Sample: MRNA endoribonuclease toxin LS dimer, 80 kDa Escherichia coli protein
Antitoxin RnlB (C-terminal His-tagged) monomer, 15 kDa Escherichia coli protein
Buffer: 20 mM Tris, 150 mM NaCl, 1 mM TCEP, 5% glycerol, pH: 8
Experiment: SAXS data collected at BM29, ESRF on 2018 Jul 25
RgGuinier 3.5 nm
Dmax 10.0 nm
VolumePorod 161 nm3

SASDHX7 – Escherichia coli RnlA (mRNA endoribonuclease toxin LS)

mRNA endoribonuclease toxin LS experimental SAS data
mRNA endoribonuclease toxin LS Kratky plot
Sample: MRNA endoribonuclease toxin LS dimer, 80 kDa Escherichia coli protein
Buffer: 20 mM Tris, 150 mM NaCl, 1 mM TCEP, 5% glycerol, pH: 8
Experiment: SAXS data collected at BM29, ESRF on 2018 Jul 25
RgGuinier 3.7 nm
Dmax 10.7 nm
VolumePorod 134 nm3

SASDKL2 – NRD-HEPN - mRNA endoribonuclease toxin LS from Escherichia coli (strain K12)

NRD-HEPN truncated variant of RnlA endoribonuclease experimental SAS data
MULTIFOXS model
Sample: NRD-HEPN truncated variant of RnlA endoribonuclease dimer, 62 kDa Escherichia coli protein
Buffer: 20 mM Tris, 150 mM NaCl, 1 mM TCEP, pH: 8
Experiment: SAXS data collected at SWING, SOLEIL on 2020 Jun 27
RgGuinier 3.0 nm
Dmax 10.4 nm
VolumePorod 88 nm3

SASDHY7 – Escherichia coli RnlA (mRNA endoribonuclease toxin LS) - R255A single alanine mutant

mRNA endoribonuclease toxin LS - R255A mutant; N-terminal His-tagged experimental SAS data
mRNA endoribonuclease toxin LS - R255A mutant; N-terminal His-tagged Kratky plot
Sample: MRNA endoribonuclease toxin LS - R255A mutant; N-terminal His-tagged dimer, 84 kDa Escherichia coli protein
Buffer: 20 mM Tris, 150 mM NaCl, 1 mM TCEP, 5% glycerol, pH: 8
Experiment: SAXS data collected at BM29, ESRF on 2018 Jul 25
RgGuinier 3.7 nm
Dmax 20.1 nm
VolumePorod 133 nm3

SASDKS9 – mRNA endoribonuclease toxin LS (D245R mutant); batch-SAXS measurements in low salt buffer

mRNA endoribonuclease toxin LS (D245R mutant) experimental SAS data
MULTIFOXS model
Sample: MRNA endoribonuclease toxin LS (D245R mutant) dimer, 84 kDa Escherichia coli (strain … protein
Buffer: 20 mM Tris, 150 mM NaCl, 1 mM TCEP, pH: 8
Experiment: SAXS data collected at SWING, SOLEIL on 2020 Jul 18
RgGuinier 4.3 nm
Dmax 15.9 nm
VolumePorod 183 nm3

SASDHZ7 – Escherichia coli RnlA (mRNA endoribonuclease toxin LS) - R318A single alanine mutant

mRNA endoribonuclease toxin LS - R318A mutant; N-terminal His-tagged experimental SAS data
mRNA endoribonuclease toxin LS - R318A mutant; N-terminal His-tagged Kratky plot
Sample: MRNA endoribonuclease toxin LS - R318A mutant; N-terminal His-tagged dimer, 84 kDa Escherichia coli protein
Buffer: 20 mM Tris, 150 mM NaCl, 1 mM TCEP, 5% glycerol, pH: 8
Experiment: SAXS data collected at BM29, ESRF on 2018 Jul 25
RgGuinier 3.4 nm
Dmax 12.7 nm
VolumePorod 124 nm3