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Inositol trisphosphates in carbachol-stimulated rat parotid glands

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Irvine, R F, Letcher, A J, Lander, D J, Downes, C P·1984·Biochemical Journal

Abstract

Carbachol stimulation of rat parotid gland fragments prelabelled with myo-[3H]-inositol results in a large accumulation after 15 min of [3H]inositol trisphosphate. Only some of this is the D-1,4,5 isomer which would be expected to be derived from the known phosphatidylinositol bisphosphate. The predominant inositol trisphosphate is not susceptible to hydrolysis by human erythrocyte membranes. It yields altritol after periodate treatment followed by reduction and dephosphorylation, and, from partial dephosphorylation experiments, does not have a phosphate in the 2 position; the most likely structure of this inositol trisphosphate is therefore (D/L)-myo-inositol 1,3,4-trisphosphate. The possible origin and significance of this compound are discussed.

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Metadata

Authors
Irvine, R. F., Letcher, A. J., Lander, D. J., & Downes, C. P.
Venue
Biochemical Journal
Published
1984-10-01
Volume
223
Issue
1
Pages
237-243
ISSN
  • 0264-6021 (ISSN-L)
  • 1470-8728
OpenAlex
W2263541816
Cited by
298
References
0
FWCI
24.82
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Inositol trisphosphates in carbachol-stimulated rat parotid glands. https://app.cochat.ai/papers/10.1042/bj2230237
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Irvine, R. F., Letcher, A. J., Lander, D. J., & Downes, C. P. (1984). Inositol trisphosphates in carbachol-stimulated rat parotid glands. Biochemical Journal. https://doi.org/10.1042/bj2230237

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.