RRC ID 45593
Author Li W, Bell HW, Ahnn J, Lee SK.
Title Regulator of Calcineurin (RCAN-1) Regulates Thermotaxis Behavior in Caenorhabditis elegans.
Journal J Mol Biol
Abstract Regulator of calcineurin (RCAN) is a calcineurin-interacting protein that inhibits calcineurin phosphatase when overexpressed, often upregulated under neuropathological conditions with impaired learning and memory processes, such as Down syndrome or Alzheimer's disease. Thermotactic behavior in the nematode Caenorhabditis elegans is a form of memory in which calcineurin signaling plays a pivotal role in the thermosensation of AFD neurons. In this study, we found that rcan-1 deletion mutants exhibited cryophilic behavior dependent on tax-6, which was rescued by expressing rcan-1 in AFD neurons. Interaction between RCAN-1 and TAX-6 requires the conserved PxIxIT motif of RCAN-1, without which thermotactic behavior could not be fully rescued. In addition, the loss of crh-1/CREB suppressed the thermotaxis phenotypes of rcan-1 and tax-6 mutants, indicating that crh-1 is crucial in thermotaxis memory in these mutants. Taken together, our results suggest that rcan-1 is an inhibitory regulator of tax-6 and that it acts in the formation of thermosensory behavioral memory in C. elegans.
Volume 427(22)
Pages 3457-3468
Published 2015-11-6
DOI 10.1016/j.jmb.2015.07.017
PII S0022-2836(15)00419-2
PMID 26232604
MeSH Animals Animals, Genetically Modified / genetics Animals, Genetically Modified / growth & development Animals, Genetically Modified / metabolism Caenorhabditis elegans / genetics Caenorhabditis elegans / growth & development Caenorhabditis elegans / metabolism* Caenorhabditis elegans Proteins / genetics Caenorhabditis elegans Proteins / metabolism* Calcineurin / chemistry* Calcineurin / genetics Calcineurin / metabolism Calcineurin Inhibitors / metabolism* Calcium / metabolism Gene Expression Regulation* Locomotion Mutation / genetics Neurons / metabolism Neurons / pathology* Phosphorylation Signal Transduction Thermosensing / physiology*
IF 4.76
Times Cited 4
C.elegans tm1925 tm2021 tm2869