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http://reply.papertrans.cn/76/7526/752590/752590_19.pngfibroblast 发表于 2025-3-25 01:12:45
Lester Thurowhe emerging description differs from that for potassium channels, which make use of a stiff filter lined with main chain carbonyl oxygens that snugly fit K. ions. Instead, calcium channels use a selectivity filter composed of the side chain carboxylate oxygen atoms of a cluster of four glutamate res