Structure of the archaeal chemotaxis protein CheY in a domain-swapped dimeric conformation

Abstract

Che proteins are part of the signal transduction pathway between stimulus and response, mediated by the archaellum. The structure of the chemotaxis protein CheY was determined in two different crystal forms. The novel CheF protein that connects chemotaxis signaling to the motility apparatus was expressed and crystallized, and data were acquired by X-ray diffraction.