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We developed a method that allows release of intact membrane protein complexes from amphipols, bicelles and nanodiscs in the gas phase for observation by mass spectrometry (MS). Current methods involve release of membrane protein complexes from detergent micelles, which reveals subunit composition and lipid binding. We demonstrated that oligomeric complexes(More)
Severe acute respiratory syndrome coronavirus (SARS-CoV) caused a global panic due to its high morbidity and mortality during 2002 and 2003. Soon after the deadly disease outbreak, the angiotensin-converting enzyme 2 (ACE2) was identified as a functional cellular receptor in vitro and in vivo for SARS-CoV spike protein. However, ACE2 solely is not(More)
Plant C2 domain proteins play important roles in diverse cellular processes including growth, development, and membrane targeting, as well as in abiotic and biotic stress adaptations by sensing intracellular Ca2+ signals. In this study, we isolated a novel C2 domain protein gene, TaERG3, from wheat infected by Puccinia striiformis f. sp. tritici. TaERG3 was(More)
The rapid growth in the study of membrane protein complexes in lipid microenvironments prompts new methods for their characterization. Here we develop mass spectrometry as a method for studying membrane proteins incorporated into amphipols, bicelles and nanodiscs. We compare these detergent-free vehicles with micelles for their ability to preserve the(More)
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