During the last 2 years, our laboratory has worked on the elucidation of the molecular basis of capacitative calcium entry (CCE) into cells. Specifically, we tested the hypothesis that CCE channels are formed of subunits encoded in genes related to the Drosophila trp gene, The first step in this pursuit was to search for mammalian frp genes, We found not one but six mammalian genes and cloned several of their cDNAs, some in their full length, As assayed in mammalian cells, overexpression of some mammalian Trps increases CCE, while expression of partial trp cDNAs in antisense orientation can interfere with endogenous CCE. These findings provided a firm connection between CCE and mammalian Trps. This article reviews the known forms of CCE and highlights unanswered questions in our understanding of intracellular Ca2+ homeostasis and the physiological roles of CCE.
On the molecular basis and regulation of cellular capacitative calcium entry: roles for Trp proteins / Birnbaumer, L; Zhu, X; Jiang, M; Boulay, G; Peyton, M; Vannier, B; Brown, D; Platano, D; Sadeghi, H; Stefani, E; Birnbaumer, M. - In: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA. - ISSN 0027-8424. - ELETTRONICO. - 93:26(1996), pp. 15195-15202. [10.1073/pnas.93.26.15195]
On the molecular basis and regulation of cellular capacitative calcium entry: roles for Trp proteins
Zhu, X;Platano, D;Sadeghi, H;
1996
Abstract
During the last 2 years, our laboratory has worked on the elucidation of the molecular basis of capacitative calcium entry (CCE) into cells. Specifically, we tested the hypothesis that CCE channels are formed of subunits encoded in genes related to the Drosophila trp gene, The first step in this pursuit was to search for mammalian frp genes, We found not one but six mammalian genes and cloned several of their cDNAs, some in their full length, As assayed in mammalian cells, overexpression of some mammalian Trps increases CCE, while expression of partial trp cDNAs in antisense orientation can interfere with endogenous CCE. These findings provided a firm connection between CCE and mammalian Trps. This article reviews the known forms of CCE and highlights unanswered questions in our understanding of intracellular Ca2+ homeostasis and the physiological roles of CCE.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
