The effect of isobutylmethylxanthine on the photoresponse and phosphorylation of phosphatidylinositol in octopus retina

Tohru Yoshioka, Hiroko Inoue, Masayuki Takagi, Fumio Hayashi, Taisaku Amakawa

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The effect of isobutylmethylxanthine on the photoresponse and the phosphorylation of phosphatidylinositol was studied. The recovery of photoresponse after a bright flash was greatly altered by the addition of isobutylmethylxanthine. Phosphatidylinositol phosphorylation, assessed by the incorporation of label from [γ-32P]ATP, was influenced by isobutylmethylxanthine. Incorporation of 32P was decreased into diphosphoinositide and triphosphoinositide, and increased into phosphatidic acid. These changes were interpreted by indroducing a parameter, Ψ, calcium charge of the plasma membrane.

Original languageEnglish
Pages (from-to)50-55
Number of pages6
JournalBBA - General Subjects
Volume755
Issue number1
DOIs
Publication statusPublished - 1983 Jan 4
Externally publishedYes

Fingerprint

Octopodiformes
Phosphorylation
Phosphatidylinositols
Retina
Phosphatidic Acids
Cell membranes
Labels
Adenosine Triphosphate
Cell Membrane
Calcium
Recovery
triphosphoinositide
diphosphoinositides

Keywords

  • (Octopus retina)
  • Isobutylmethylxanthine
  • Phosphatidylinositol
  • Phosphorylation
  • Photoresponse

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Molecular Biology
  • Medicine(all)

Cite this

The effect of isobutylmethylxanthine on the photoresponse and phosphorylation of phosphatidylinositol in octopus retina. / Yoshioka, Tohru; Inoue, Hiroko; Takagi, Masayuki; Hayashi, Fumio; Amakawa, Taisaku.

In: BBA - General Subjects, Vol. 755, No. 1, 04.01.1983, p. 50-55.

Research output: Contribution to journalArticle

Yoshioka, Tohru ; Inoue, Hiroko ; Takagi, Masayuki ; Hayashi, Fumio ; Amakawa, Taisaku. / The effect of isobutylmethylxanthine on the photoresponse and phosphorylation of phosphatidylinositol in octopus retina. In: BBA - General Subjects. 1983 ; Vol. 755, No. 1. pp. 50-55.
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