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The report is scheduled for the June 20 issue of the Journal of the American Chemical Society, a weekly publication.
Rommie E. Amaro and colleagues focused on what has been termed the "hot pocket," or more technically "the 150-loop." This chain of amino acids forms a cavity in the neuraminidase enzyme that facilitates H5N1ò™s spread. Anti-flu drugs called neuraminidase inhibitors work by entering and binding to the hot pocket, almost like a hand fitting into a glove.
In the new study, researchers report that the hot pocket actually can have internal shapes substantially different than previously believed. That new structural understanding of the 150-loop could be valuable in efforts to design new and more effective anti-flu drugs, they state. Drugs capable of fitting more snugly into the cavity could yield a class of neuraminidase inhibitors that are more effective against H5N1-like flu viruses.-American Chemical Society