CAPS in search of a lost function
- PMID: 15820687
- DOI: 10.1016/j.neuron.2005.03.017
CAPS in search of a lost function
Abstract
Ca2+-dependent activator protein for secretion (CAPS) is an evolutionarily conserved secretory protein that was previously thought to mediate Ca2+-triggered fusion of dense-core vesicles. In an elegant study of CAPS1-deficient mice, Speidel et al. (this issue of Neuron) now show that CAPS function may have been misunderstood. CAPS appears to act upstream of fusion in the biogenesis or maintenance of mature secretory vesicles, raising the possibility of a completely new type of function for an essential component of the secretory machinery.
Comment on
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CAPS1 regulates catecholamine loading of large dense-core vesicles.Neuron. 2005 Apr 7;46(1):75-88. doi: 10.1016/j.neuron.2005.02.019. Neuron. 2005. PMID: 15820695
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