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The Salmonella Secreted Effector SarA/SteE Mimics Cytokine Receptor Signaling to Activate STAT3.

Gibbs KD, Washington EJ, Jaslow SL, Bourgeois JS, Foster MW, Guo R, Brennan RG, Ko DC
Cell Host Microbe. 2020 Jan 8;27(1):129-139.e4. doi: 10.1016/j.chom.2019.11.012. Epub 2019 Dec 31. (Link opens in a new window) PubMed (Link opens in a new window) Article

Plasmids from Article

ID Plasmid Purpose
174391pcDNA3.1-Flag-stm2585S. Typhimurium gene stm2585 (sarA/steE) codon-optimized for mammalian expression with N-terminal Flag tag
174392pcDNA3.1-Flag-stm2585_Y167FS. Typhimurium gene stm2585 (sarA/steE) codon-optimized for mammalian expression with STAT3-binding YxxQ motif mutated to FxxQ
174393pcDNA3.1-Flag-stm2585-gp130Chimera of codon-optimized stm2585 (sarA/steE) and human gp130 sequence.
174394pcDNA3.1-Flag-gp130dimerCytosolic domain of gp130 with C-C linker and Leu zipper for constitutive dimerization and activation (from Stuhlmann-Laeisz et al. 2006).
174395pcDNA3.1-Flag-gp130dimer-stm2585Constitutively active gp130 dimer with codon-optimized stm2585 insert (replacing amino acids 140-179)
174397pEGFP-Flag-stm2585Native S. Typhimurium gene stm2585 (sarA/steE) with N-terminal GFP and Flag tags.
174398pEGFP-Flag-stm2585_Y167FNative S. Typhimurium gene stm2585 (sarA/steE) with N-terminal GFP and Flag tags and its STAT3-binding YxxQ motif mutated to FxxQ
174399pEGFP-Flag-stm2585_S130ANative S. Typhimurium gene stm2585 (sarA/steE) with N-terminal GFP and Flag tags and its GSK3-binding SxxxSP motif mutated to SxxxAP
174400pEGFP-Flag-stm2585_L139*S. Typhimurium gene stm2585 (sarA/steE) truncated after 139th amino acid, which removes the stretch homologous to gp130
174401pWSK129-stm2585S. Typhimurium stm2585 (sarA/steE) flanked with endogenous regulatory sequences (786bp on 5' and 28bp on 3' end) for bacterial expression.
174402pWSK129-stm2585_Y167FBacterial expression of sarA with its STAT3-binding YxxQ motif mutated to FxxQ
174403pWSK129-stm2585_S130ABacterial expression of sarA with its GSK3-binding SxxxSP motif mutated to SxxxAP.
174404pWSK129-stm2585-gp130Bacterial expression of sarA-gp130 chimera under native promoter.

Antibodies from Article