Vibrio cholerae's ToxRS bile sensing system.

Gubensäk N, Sagmeister T, Buhlheller C, Geronimo BD, Wagner GE, Petrowitsch L, Gräwert MA, Rotzinger M, Berger TMI, Schäfer J, Usón I, Reidl J, Sánchez-Murcia PA, Zangger K, Pavkov-Keller T
Elife 12 (2023 Sep 28)
PMID: 37768326
doi: 10.7554/eLife.88721
Submitted to SASBDB: 2023 Jan 31
Published in SASBDB:

SASDR25 – Periplasmic domain of cholera toxin transcriptional activator ToxR

Cholera toxin transcriptional activator experimental SAS data
PDB (PROTEIN DATA BANK) model
Sample: Cholera toxin transcriptional activator monomer, 12 kDa Vibrio cholerae serotype … protein
Buffer: 50 mM Na2HPO4, 300 mM NaCl, 3% glycerol, pH: 8
Experiment: SAXS data collected at EMBL P12, PETRA III on 2022 Mar 6
RgGuinier 1.6 nm
Dmax 6.0 nm
VolumePorod 16 nm3

SASDR35 – Periplasmic domain of cholera transmembrane regulatory protein ToxS

Transmembrane regulatory protein ToxS experimental SAS data
ALPHAFOLD model
Sample: Transmembrane regulatory protein ToxS dimer, 37 kDa Vibrio cholerae serotype … protein
Buffer: 50 mM Na2HPO4, 300 mM NaCl, 3% glycerol, pH: 8
Experiment: SAXS data collected at EMBL P12, PETRA III on 2022 Mar 6
RgGuinier 2.3 nm
Dmax 7.4 nm
VolumePorod 55 nm3

SASDR45 – A complex between the periplasmic domains of cholera toxin transcriptional activator ToxR and transmembrane regulatory protein ToxS

Cholera toxin transcriptional activatorTransmembrane regulatory protein ToxS experimental SAS data
CUSTOM IN-HOUSE model
Sample: Cholera toxin transcriptional activator monomer, 12 kDa Vibrio cholerae serotype … protein
Transmembrane regulatory protein ToxS dimer, 37 kDa Vibrio cholerae serotype … protein
Buffer: 50 mM Na2HPO4, 300 mM NaCl, 3% glycerol, pH: 8
Experiment: SAXS data collected at EMBL P12, PETRA III on 2022 Mar 6
RgGuinier 2.1 nm
Dmax 6.6 nm
VolumePorod 51 nm3

SASDR55 – A complex between the periplasmic domains of cholera toxin transcriptional activator ToxR and transmembrane regulatory protein ToxS bound to bile salt

Cholera toxin transcriptional activatorTransmembrane regulatory protein ToxSbile acid: sodium cholate hydrate experimental SAS data
CUSTOM IN-HOUSE model
Sample: Cholera toxin transcriptional activator monomer, 12 kDa Vibrio cholerae serotype … protein
Transmembrane regulatory protein ToxS dimer, 37 kDa Vibrio cholerae serotype … protein
Bile acid: sodium cholate hydrate monomer, 0 kDa
Buffer: 50 mM Na2HPO4, 300 mM NaCl, 3% glycerol, pH: 8
Experiment: SAXS data collected at EMBL P12, PETRA III on 2022 Jul 7
RgGuinier 2.4 nm
Dmax 6.6 nm
VolumePorod 60 nm3