Cloning of zebrafish BAD, a BH3-only proapoptotic protein, whose overexpression leads to apoptosis in COS-1 cells and zebrafish embryos

Yueh Chun Hsieh, Mau Sun Chang, Jeou Yuan Chen, Jeffrey Jong Young Yen, I. Ching Lu, Chih Ming Chou, Chang Jen Huang

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The BH3-only proapoptotic protein, BAD, was cloned from zebrafish embryos and its properties were characterized. Zebrafish BAD (zBAD) is a protein with 147 amino acids that contains a BH3 domain and a putative 14-3-3 binding site with the sequence of RPRSRS84AP, corresponding to S136 in mouse BAD (mBAD). zBAD shares 34%, 28%, and 29% amino acid sequence identity to the human, mouse, and rat BAD, respectively. RT-PCR analysis revealed that the expression of zBAD gene is found in various parts of zebrafish tissues. The treatment with the z-VAD fmk, a broad-range caspase inhibitor, in COS-1 cells significantly increased the expression of zebrafish BAD fusion proteins (GFP-zBAD and HA-zBAD), indicating that zebrafish BAD fusion proteins may be cleaved by caspase(s). zBAD was shown to induce apoptosis when it was overexpressed in COS-1 cells. In addition, zBAD was also expressed in muscle cells under the muscle-specific promoter from zebrafish α-actin gene. Abnormality in the skeletal muscles and the loss of green fluorescence signal in the same region were observed. Taken together, our results indicate that zBAD could induce apoptosis in vitro and in vivo and may have biological implications in apoptosis during zebrafish development.

Original languageEnglish
Pages (from-to)667-675
Number of pages9
JournalBiochemical and Biophysical Research Communications
Volume304
Issue number4
DOIs
Publication statusPublished - May 16 2003

Fingerprint

Cloning
COS Cells
Zebrafish
Organism Cloning
Embryonic Structures
Apoptosis
Muscle
Proteins
Fusion reactions
Genes
Amino Acids
Caspase Inhibitors
Caspases
Rats
Actins
Fluorescence
Binding Sites
Cells
Tissue
Zebrafish Proteins

Keywords

  • Apoptosis
  • BAD
  • Caspase inhibitor
  • Muscle-specific promoter
  • Zebrafish

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Molecular Biology

Cite this

Cloning of zebrafish BAD, a BH3-only proapoptotic protein, whose overexpression leads to apoptosis in COS-1 cells and zebrafish embryos. / Hsieh, Yueh Chun; Chang, Mau Sun; Chen, Jeou Yuan; Yen, Jeffrey Jong Young; Lu, I. Ching; Chou, Chih Ming; Huang, Chang Jen.

In: Biochemical and Biophysical Research Communications, Vol. 304, No. 4, 16.05.2003, p. 667-675.

Research output: Contribution to journalArticle

Hsieh, Yueh Chun ; Chang, Mau Sun ; Chen, Jeou Yuan ; Yen, Jeffrey Jong Young ; Lu, I. Ching ; Chou, Chih Ming ; Huang, Chang Jen. / Cloning of zebrafish BAD, a BH3-only proapoptotic protein, whose overexpression leads to apoptosis in COS-1 cells and zebrafish embryos. In: Biochemical and Biophysical Research Communications. 2003 ; Vol. 304, No. 4. pp. 667-675.
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