Bovine posterior pituitary: Presence of p65 (Synaptotagmin), PC1, PC2 and secretoneurin in large dense core vesicles

Claudia Egger, Rudolf Kirchmair, Susanne Kapelari, Reiner Fischer-Colbrie, Ruth Hogue-Angeletti, Hans Winkler

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

The subcellular distribution of p65 (synaptotagmin), of the endoproteases PC1 and PC2 and of secretoneurin was studied in bovine posterior pituitary by differential and density gradient centrifugation. All these peptides were found to be present in the neurosecretory granules (large dense core vesicles). p65 can therefore participate not only in exocytosis from small synaptic vesicles but also from large dense core vesicles. Secretoneurin is a peptide derived from secretogranin II. Processing of the propeptide apparently occurs during axonal transport of the large dense core vesicles and is complete in the posterior pituitary. Thus, stimulation of the hypothalamic magnocellular neurons can lead to the release of this newly characterized, functional neuropeptide.

Original languageEnglish (US)
Pages (from-to)169-175
Number of pages7
JournalNeuroendocrinology
Volume59
Issue number2
DOIs
StatePublished - 1994

Fingerprint

Synaptotagmins
Secretory Vesicles
Proprotein Convertase 2
Proprotein Convertase 1
Secretogranin II
Peptides
Axonal Transport
Density Gradient Centrifugation
Synaptic Vesicles
Exocytosis
Neuropeptides
Neurons
secretoneurin

Keywords

  • Large dense core vesicles
  • PC1
  • PC2
  • Secretogranin II
  • Secretoneurin
  • Synaptotagmin

ASJC Scopus subject areas

  • Endocrinology
  • Endocrinology, Diabetes and Metabolism
  • Cellular and Molecular Neuroscience
  • Endocrine and Autonomic Systems
  • Neuroscience(all)

Cite this

Egger, C., Kirchmair, R., Kapelari, S., Fischer-Colbrie, R., Hogue-Angeletti, R., & Winkler, H. (1994). Bovine posterior pituitary: Presence of p65 (Synaptotagmin), PC1, PC2 and secretoneurin in large dense core vesicles. Neuroendocrinology, 59(2), 169-175. https://doi.org/10.1159/000126655

Bovine posterior pituitary : Presence of p65 (Synaptotagmin), PC1, PC2 and secretoneurin in large dense core vesicles. / Egger, Claudia; Kirchmair, Rudolf; Kapelari, Susanne; Fischer-Colbrie, Reiner; Hogue-Angeletti, Ruth; Winkler, Hans.

In: Neuroendocrinology, Vol. 59, No. 2, 1994, p. 169-175.

Research output: Contribution to journalArticle

Egger, C, Kirchmair, R, Kapelari, S, Fischer-Colbrie, R, Hogue-Angeletti, R & Winkler, H 1994, 'Bovine posterior pituitary: Presence of p65 (Synaptotagmin), PC1, PC2 and secretoneurin in large dense core vesicles', Neuroendocrinology, vol. 59, no. 2, pp. 169-175. https://doi.org/10.1159/000126655
Egger, Claudia ; Kirchmair, Rudolf ; Kapelari, Susanne ; Fischer-Colbrie, Reiner ; Hogue-Angeletti, Ruth ; Winkler, Hans. / Bovine posterior pituitary : Presence of p65 (Synaptotagmin), PC1, PC2 and secretoneurin in large dense core vesicles. In: Neuroendocrinology. 1994 ; Vol. 59, No. 2. pp. 169-175.
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