Expression of genes encoding Ca2+ exporting proteins in freshwater crayfish Procambarus clarkii during cold exposure

Yongping Gao, Christopher M. Gillen, Daniel R. Whalen, Francieli M. Vigo, Ashkahn E. Golshani, Michele G. Wheatly

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


1.This study examined expression of two primary transmembrane Ca2+ export proteins (plasma membrane Ca2+ ATPase, (PMCA); Na+/Ca2+ exchanger, sodium/calcium exchanger (NCX)) in epithelial (antennal gland, kidney) and non-epithelial (axial abdominal muscle) tissues of the freshwater crayfish Procambarus clarkii following exposure (28 days) to 4 °C (compared with control 23 °C).2.Crayfish tissues responded to cold exposure within 5-7 days by upregulating the mRNA (determined through real-time polymerase chain reaction (PCR)) for both PMCA and NCX. After 28 days, levels were 4-5× higher in antennal gland and 2-3× higher in muscle. In situ hybridization localized the mRNA increase to the nephridial canal in antennal gland sections and to the extensor muscles in the tail. Western blotting confirmed corresponding increases in PMCA protein expression; however, expression of NCX protein was unchanged.

Original languageEnglish (US)
Pages (from-to)144-151
Number of pages8
JournalJournal of Thermal Biology
Issue number3
StatePublished - Apr 2009
Externally publishedYes


  • Antennal gland
  • Axial abdominal muscle
  • Calcium export
  • Cold exposure
  • Crayfish
  • Plasma membrane calcium ATPase (PMCA)
  • Procambarus clarkii
  • Sodium/calcium exchanger (NCX)

ASJC Scopus subject areas

  • Biochemistry
  • Physiology
  • Agricultural and Biological Sciences(all)
  • Developmental Biology


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