Characterization of a nucleic acid transporter

The precise molecular mechanism(s) responsible for nucleic acid transport across the plasma membrane are being defined. This research has led to the identification and partial characterization of a plasma membrane protein complex that functions as a highly selective nucleic acid-conducting channel. To date the substrate specificity of the channel has been defined and several channel blockers identified. In addition, three putative channel complex proteins have been cloned. Having now obtained definitive evidence for the role of one of these proteins in channel function future projects focus on definition of the role of the other two proteins. Strategies are being applied to develop a molecular model of nucleic acid transport

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