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Lookup NU author(s): Professor Keith Jones
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Of the three intracellular Ca2+ signalling molecules (InsP3, cADPR and NAADP) sea urchin egg homogenate has been used in the identification and characterisation of two, cADPR and NAADP. Homogenate is prepared in a Na+/Cl- substitute of N-Methyl glucamine (NMG)/gluconate. To determine how media composition affects Ca2+ release we replaced NMG with various sugars or glycine and found a dramatic improvement in InsP3 mediated Ca2+ release. Conversely the response to cADPR was diminished, whilst NAADP was unaffected. Therefore modifying media composition may be an important consideration in using homogenate to study Ca2+ release for future studies. © 2007 Elsevier Inc. All rights reserved.
Author(s): Jones KT, Swann K
Publication type: Article
Publication status: Published
Journal: Biochemical and Biophysical Research Communications
ISSN (print): 0006-291X
ISSN (electronic): 1090-2104
Publisher: Academic Press
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