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Syntaxin 1 (HPC-1) is associated with chromaffin granules

  • Mitsuo Tagaya
  • , Shuichi Toyonaga
  • , Masami Takahashi
  • , Akitsugu Yamamoto
  • , Tomonori Fujiwara
  • , Kimio Akagawa
  • , Yoshinori Moriyama
  • , Shoji Mizushima

Research output: Contribution to journalArticlepeer-review

Abstract

Syntaxin 1 (HPC-1), a component of the receptor for SNAPs (soluble N- ethylmaleimide-sensitive factor attachment proteins), has been implicated in the docking and fusion of synaptic vesicles with the plasma membrane. It was reported that syntaxin 1 in rat brain and chromaffin cells (PC12) is exclusively located on the plasma membrane (Bennett, M. K., Calakos, N., and Scheller, R. H. (1992) Science 257, 255-259; Sollner, T., Bennett, M. K., Whiteheart, S. W., Scheller, R. H., and Rothman, J. E. (1993) Cell 75, 409- 418). By means of biochemical and morphological analyses, we now show that syntaxin 1 is associated with chromaffin granules in the adrenal medulla. This finding raises the possibility that syntaxin 1 in chromaffin cells is a component of vesicle-SNAP receptor as well as one of target-SNAP receptor on the plasma membrane.

Original languageEnglish
Pages (from-to)15930-15933
Number of pages4
JournalJournal of Biological Chemistry
Volume270
Issue number27
DOIs
Publication statusPublished - Jul 7 1995
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Cell Biology

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