In contrast to proteins, no intrinsically fluorescent RNA is known to exist in nature. In this issue, a new, red-shifted aptamer–fluorophore complex for RNA imaging that has enhanced photostability is described. The crystal structure of this complex reveals a novel form of RNA small-molecule recognition.

中文翻译：

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RNA成像：两个G四联体的故事

与蛋白质相反，自然界中不存在固有的荧光RNA。在本期中，描述了一种新的红移适体-荧光团复合物，用于RNA成像，具有增强的光稳定性。这种复合物的晶体结构揭示了一种RNA小分子识别的新形式。