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Chemical Senses Advance Access originally published online on July 19, 2006
Chemical Senses 2006 31(8):725-730; doi:10.1093/chemse/bjl014
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© The Author 2006. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oxfordjournals.org

Plasma Membrane Calcium Pumps in Mouse Olfactory Sensory Neurons

S. Dilhan Weeraratne1, Megan Valentine1, Matthew Cusick2, Rona Delay1 and Judith L. Van Houten1

1 Department of Biology, University of Vermont, 109 Carrigan Drive, Burlington, VT 05405, USA 2 University of Utah, Department of Pathology, 675S 900E, Salt Lake City, UT 84102, USA

Correspondence to be sent to: Judith L. Van Houten, Department of Biology, University of Vermont, 109 Carrigan Drive, Burlington, VT 05405, USA. e-mail: judith.vanhouten{at}uvm.edu

We report here the presence of specific plasma membrane calcium pumps (PMCAs) in mouse olfactory sensory neurons. All 4 isoforms are present as shown by deconvolution microscopy, and the specific splice variants are identified by reverse transcriptase (RT)–polymerase chain reaction (PCR). The PMCAs are present on the cell body, dendrite, knob, and cilia, but the different isoforms of PMCAs are not identical in their distributions. The PMCAs are positioned to play a role in calcium clearance after stimulation.

Key words: calcium, mouse, olfaction, pumps


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