منابع مشابه
Kv1.2 potassium channel inhibitors from Chukrasia tabularis.
Eighteen new limonoids, chubularisins A-R (1-18), along with eleven known analogues, were isolated from the stem bark of Chukrasia tabularis. The structures of 1-18 were elucidated on the basis of spectroscopic data and chemical evidence. Compound 1 represented the first example of 8,9,12-orthoester of phragmalin limonoids. Interestingly, compounds 4, 8, and 22 exhibited potent and selective in...
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Elucidation of the structure-function relationship of a small number of prokaryotic ion channels characterized so far greatly contributed to our knowledge on basic mechanisms of ion conduction. We identified a new potassium channel (SynK) in the genome of the cyanobacterium Synechocystis sp. PCC6803, a photosynthetic model organism. SynK, when expressed in a K(+)-uptake-system deficient E. coli...
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The sulphonylurea receptor (SUR) is a member of the ATP-binding cassette (ABC) family of membrane proteins. It functions as the regulatory subunit of the ATP-sensitive potassium (KATP) channel, which comprises SUR and Kir6.x proteins. Here, we review data demonstrating functional differences between the two nucleotide binding domains (NBDs) of SUR1. In addition, to explain the structural basis ...
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Microglia, the resident immune cells of the brain, are important determinants of CNS inflammation. They play defense in the healthy brain, but microglial activation can also lead to neuronal injury or death. The microglial potassium channel Kv1.3 is involved in microglial proliferation and in the respiratory burst that generates reactive oxygen species such as superoxide; thus Fordyce et al. ex...
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What is the moving part that switches an ion channel's current on and off? In this issue of Neuron del Camino and Yellen (2001) exploit scanning cysteine mutagenesis and sulfhydryl reagents to show that the intracellular end of the S6 helices forms a mechanical gate for the Shaker potassium channel.
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ژورنال
عنوان ژورنال: ACS Medicinal Chemistry Letters
سال: 2020
ISSN: 1948-5875,1948-5875
DOI: 10.1021/acsmedchemlett.0c00569