Expression of APG-2 protein, a member of the heat shock protein 110 family, in developing rat brain

Michiyo Okui, Fumiaki Ito, Kiyokazu Ogita, Nobuyuki Kuramoto, Jun Kudo, Nobuyoshi Shimizu, Toshinori Ide

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

APG-2 protein is a member of the heat shock protein 110 family, and it is thought to play an important role in the maintenance of neuronal functions under physiological and stress conditions. However, neither the tissue-distribution of APG-2 protein nor developmental change of its expression has been studied at the protein level. Therefore, we generated an antiserum against APG-2 protein and studied expression of this protein in rat brain and other tissues by use of the Western blot method. The results showed a high expression of APG-2 protein in various regions of the central nervous system (cerebral cortex, hippocampus, striatum, midbrain, hypothalamus, cerebellum, medulla pons, and spinal cord) throughout the entire postnatal stage. Similarly, a high level of APG-2 protein was detected in the whole brain of rat embryos and in adult rat tissues such as liver, lung, spleen, and kidney. In contrast, its expression in heart was high at postnatal days 1 and 3, but thereafter drastically decreased to a low level. Furthermore, APG-2 protein was detected in neuronal primary cultures prepared from rat cerebral cortex, and its level did not change notably during neuronal differentiation. These results show that APG-2 protein is constitutively expressed in various tissues and also in neuronal cells throughout the entire embryonic and postnatal period, suggesting that it might play an important role in these tissues under non-stress conditions. Copyright (C) 1999 Elsevier Science Ltd.

Original languageEnglish
Pages (from-to)35-43
Number of pages9
JournalNeurochemistry International
Volume36
Issue number1
DOIs
Publication statusPublished - 2000 Jan

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HSP110 Heat-Shock Proteins
Brain
Proteins
Cerebral Cortex
Physiological Stress
Pons
Tissue Distribution
Mesencephalon
Cerebellum
Hypothalamus
Immune Sera

ASJC Scopus subject areas

  • Cell Biology
  • Molecular Biology
  • Cellular and Molecular Neuroscience

Cite this

Expression of APG-2 protein, a member of the heat shock protein 110 family, in developing rat brain. / Okui, Michiyo; Ito, Fumiaki; Ogita, Kiyokazu; Kuramoto, Nobuyuki; Kudo, Jun; Shimizu, Nobuyoshi; Ide, Toshinori.

In: Neurochemistry International, Vol. 36, No. 1, 01.2000, p. 35-43.

Research output: Contribution to journalArticle

Okui, Michiyo ; Ito, Fumiaki ; Ogita, Kiyokazu ; Kuramoto, Nobuyuki ; Kudo, Jun ; Shimizu, Nobuyoshi ; Ide, Toshinori. / Expression of APG-2 protein, a member of the heat shock protein 110 family, in developing rat brain. In: Neurochemistry International. 2000 ; Vol. 36, No. 1. pp. 35-43.
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