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Influence of expression and purification protocols on Galpha biochemical activity: kinetics of plant and mammalian G protein cycles.

Gookin TE, Chakravorty D, Assmann SM
Front Mol Biosci. 2025 Apr 7;12:1513660. doi: 10.3389/fmolb.2025.1513660. eCollection 2025. (Link opens in a new window) PubMed (Link opens in a new window) Article

Plasmids from Article

ID Plasmid Purpose
248647pSTTaE. coli protein expression vector encoding 2x N-terminal StrepII tags flanking an 11 residue flexible linker, thrombin and TEV protease sites, and an optional C-terminal FLAG tag.
248648pSTTa-GPA1Vector for protein expression of 2x StrepII-tagged Arabidopsis heterotrimeric G protein GPA1 in E. coli.
248649pSTTa-GPA1-S52NVector for protein expression of 2x StrepII-tagged Arabidopsis heterotrimeric G protein GPA1-S52N ("inactive" mutant) in E. coli.
248650pSTTa-GPA1-Q222LVector for protein expression of 2x StrepII-tagged Arabidopsis heterotrimeric G protein GPA1-Q222L ("constitutively active" mutant) in E. coli.
248651pSTTa-GNAI1Vector for protein expression of 2x StrepII-tagged human heterotrimeric G protein GNAI1 in E. coli.
248652pSTTa-GNAO1Vector for protein expression of 2x StrepII-tagged human heterotrimeric G protein GNAO1 in E. coli.

Antibodies from Article