10 November 2020
Vol 13, Issue 657

About The Cover

Cover image expansion

Online Cover This week features a Research Article that shows that a chemoreceptor from the bacterium Escherichia coli keeps the downstream kinase CheA inactive by locking down its catalytic core, thus preventing the flagellar motor from switching directions. The image is a colorized electron micrograph of an E. coli cell. [Image: Kwangshin Kim/Science Source]