Abstract
AbstractThis invited Team Profile was created by Kevin Li and Liliya Yatsunyk, Swarthmore College PA (USA) and by John Schneekloth, Jr, (Jay) National Cancer Institute, Frederick MD (USA). They recently published an article on the first crystal structure of an intercalated motif (i‐motif or iM) from the HRAS oncogene involved in many cancers. The iHRAS structure was solved to 1.8 Å resolution. It contains a tail‐to‐tail dimer of two iMs each with six C−C+ base pairs. The structure is unique in that only two base pairs out of 20 are canonical. The extensive network of capping and connecting interactions is unprecedented. The unique structural elements (loops/connecting region) may be targeted by ligands or proteins as cancer therapies. iHRAS represents the first crystallized iM‐forming structure from a human promoter. “Crystal Structure of an iM from the HRAS Oncogene Promoter”, K. S. Li, D. Jordan, L. Y. Lin, S. E. McCarthy, J. S. Schneekloth Jr., and L. A. Yatsunyk, Angew. Chem. Int. Ed. Engl. 2023, 62, e202301666.
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