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Gourinchas, G.* ; Etzl, S.* ; Göbl, C. ; Vide, U.* ; Madl, T. ; Winkler, A.S.*

Long-range allosteric signaling in red light-regulated diguanylyl cyclases.

Sci. Adv. 3:e1602498 (2017)
Verlagsversion Forschungsdaten DOI
Open Access Gold
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Nature has evolved an astonishingly modular architecture of covalently linked protein domains with diverse functionalities to enable complex cellular networks that are critical for cell survival. The coupling of sensory modules with enzymatic effectors allows direct allosteric regulation of cellular signaling molecules in response to diverse stimuli. We present molecular details of red light-sensing bacteriophytochromes linked to cyclic dimeric guanosine monophosphate-producing diguanylyl cyclases. Elucidation of the first crystal structure of a full-length phytochrome with its enzymatic effector, in combination with the characterization of light-induced changes in conformational dynamics, reveals how allosteric light regulation is fine-tuned by the architecture and composition of the coiled-coil sensor-effector linker and also the central helical spine. We anticipate that consideration of molecular principles of sensor-effector coupling, going beyond the length of the characteristic linker, and the appreciation of dynamically driven allostery will open up new directions for the design of novel red light-regulated optogenetic tools.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Hdx-ms ; Saxs ; Allostery ; C-di-gmp ; Diguanylate Cyclase ; Dynamics ; Effector ; Phytochrome ; Sensor
ISSN (print) / ISBN 2375-2548
e-ISSN 2375-2548
Zeitschrift Science Advances
Quellenangaben Band: 3, Heft: 3, Seiten: , Artikelnummer: e1602498 Supplement: ,
Verlag American Association for the Advancement of Science (AAAS)
Verlagsort Washington, DC [u.a.]
Begutachtungsstatus Peer reviewed