Article ; Online: Wnt signalling: the case of the 'missing' G-protein.
2011 Volume 433, Issue 3, Page(s) e3–5
Abstract: Wnt signalling remains a hot topic for cell signalling sleuthhounds. The trail of signalling downstream of the seven-transmembrane segment Frizzleds, which bind Wnt ligands, is replete of clues [e.g. LPR5/6 (lipoprotein receptor-related protein 5/6), G- ... ...
Abstract | Wnt signalling remains a hot topic for cell signalling sleuthhounds. The trail of signalling downstream of the seven-transmembrane segment Frizzleds, which bind Wnt ligands, is replete of clues [e.g. LPR5/6 (lipoprotein receptor-related protein 5/6), G-proteins or Dishevelled] and yet remains the 'final problem'. Although the heptahelical nature of Frizzleds places them well within a populous family of G-protein-coupled receptors, resistance to this theme has waxed and waned amid increasing demands for 'proof'. The Wnt Homepage (http://www.stanford.edu/group/nusselab/cgi-bin/wnt/) has acted as a dynamic real-time arbiter of the controversy, highlighted by the appearance and later the disappearance of the G-protein from its central diagramming and tabulations. A recent publication in this issue of the Biochemical Journal offers a solution to the 'final problem', demonstrating under native conditions that Frizzleds expressed in mammalian brain preparations act functionally to catalyse guanine-nucleotide exchange in response to stimulation with Wnt3a. Lensed from the fictional character of Sherlock Holmes, The Case of the Missing G-Protein is investigated. |
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MeSH term(s) | Animals ; Frizzled Receptors/physiology ; GTP-Binding Proteins/metabolism ; Guanine Nucleotides/metabolism ; Humans ; Signal Transduction ; Wnt Proteins/metabolism |
Chemical Substances | Frizzled Receptors ; Guanine Nucleotides ; Wnt Proteins ; GTP-Binding Proteins (EC 3.6.1.-) |
Language | English |
Publishing date | 2011-02-01 |
Publishing country | England |
Document type | Journal Article ; Research Support, U.S. Gov't, P.H.S. |
ZDB-ID | 2969-5 |
ISSN | 1470-8728 ; 0006-2936 ; 0306-3275 ; 0264-6021 |
ISSN (online) | 1470-8728 |
ISSN | 0006-2936 ; 0306-3275 ; 0264-6021 |
DOI | 10.1042/BJ20102111 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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