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Molecular details of cAMP generation in mammalian cells : a tale of two systems.

Titelangaben

Kamenetsky, Margarita ; Middelhaufe, Sabine ; Bank, Erin M. ; Levin, Lonny R. ; Buck, Jochen ; Steegborn, Clemens:
Molecular details of cAMP generation in mammalian cells : a tale of two systems.
In: Journal of Molecular Biology. Bd. 362 (2006) Heft 4 . - S. 623-639.
ISSN 0022-2836
DOI: https://doi.org/10.1016/j.jmb.2006.07.045

Abstract

The second messenger cAMP has been extensively studied for half a century, but the plethora of regulatory mechanisms controlling cAMP synthesis in mammalian cells is just beginning to be revealed. In mammalian cells, cAMP is produced by two evolutionary related families of adenylyl cyclases, soluble adenylyl cyclases (sAC) and transmembrane adenylyl cyclases (tmAC). These two enzyme families serve distinct physiological functions. They share a conserved overall architecture in their catalytic domains and a common catalytic mechanism, but they differ in their sub-cellular localizations and responses to various regulators. The major regulators of tmACs are heterotrimeric G proteins, which transduce extracellular signals via G protein-coupled receptors. sAC enzymes, in contrast, are regulated by the intracellular signaling molecules bicarbonate and calcium. Here, we discuss and compare the biochemical, structural and regulatory characteristics of the two mammalian AC families. This comparison reveals the mechanisms underlying their different properties but also illustrates many unifying themes for these evolutionary related signaling enzymes.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Zusätzliche Informationen: PubMed-ID: 12747789
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Biochemie > Lehrstuhl Biochemie I - Proteinbiochemie der Signaltransduktion - Univ.-Prof. Dr. Clemens Steegborn
Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Biochemie
Titel an der UBT entstanden: Nein
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik > 540 Chemie
Eingestellt am: 14 Apr 2015 10:33
Letzte Änderung: 11 Jul 2022 10:49
URI: https://eref.uni-bayreuth.de/id/eprint/10140