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We have previously described protective effects of oxidized 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine (OxPAPC) on pulmonary endothelial cell (EC) barrier function and demonstrated the critical role of cyclopentenone-containing modifications of arachidonoyl moiety in OxPAPC protective effects. In this study we used oxidized phosphocholine(More)
Potassium channels allow for the passive movement of potassium ions across the cell membrane and are instrumental in controlling the membrane potential in all cell types. Quaternary ammonium (QA) compounds block potassium channels and have long been used to study the functional and structural properties of these channels. Here we describe the interaction(More)
Potassium channels are the ion channels most extensively studied by structural techniques. Whereas high-resolution crystal structures have provided key insights into the molecular architecture of these channels, spin labeling studies have helped to unveil the dynamic structural aspects underlying their function. From a practical standpoint, the popularity(More)
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