rCNT2 extracellular cysteines, Cys(615) and Cys(649), are important for maturation and sorting to the plasma membrane.
[No authors listed]
摘要
rCNT2 is a purine-preferring concentrative nucleoside transporter implicated in the regulation of extracellular adenosine levels and purinergic signaling. This study addressed the analysis of the CNT2 C-terminus tail as a domain likely to be implicated in transporter sorting. The topological mapping of this segment revealed that Cys(615) and Cys(649) are important residues for the proper trafficking of CNT2 to the plasma membrane. The inhibition of protein disulfide isomerase (PDI) and ER glycosidase I and II impaired rCNT2 trafficking to the cell surface, similarly to Cys(615) and Cys(649) mutants. The present work suggests these two cysteine residues are relevant for the proper sorting of the transporter and its functional performance.
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基因功能
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原始数据
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文献解读
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