NDLI: Porcine JAB1 significantly enhances apoptosis induced by staurosporine

Content Provider	PubMed Central
Author	Jiang, P. Wang, J. Kang, Z. Li, D. Zhang, D.
Copyright Year	2013
Abstract	c-Jun activation domain-binding protein-1 (JAB1), also known as the subunit 5 of the COP9 signalosome, is a multifunctional protein that regulates cell proliferation, apoptosis and oncogenesis by interacting with and subsequently degrading a large number of proteins. Although human JAB1 (hJAB1) has been studied for a long time, studies on porcine JAB1 (pJAB1) have never been reported. In the present study, we cloned and characterized the pJAB1 gene. The genomic structure of the pJAB1 gene was determined. The open-reading frame of pJAB1 encoded 334 amino acids. The deduced amino acid sequence was highly similar to homologs in other species. Furthermore, the tertiary structure analysis and phylogenetic analysis indicated that JAB1 was highly conservative among species. pJAB1 may interact with several proteins according to protein–protein interactions analysis. In addition, pJAB1 was found to be universally expressed in porcine tissues. Subcellular localization analysis showed that GFP–pJAB1 fusion protein distributed specifically in the cytoplasm. Flow cytometric analysis proved that pJAB1 significantly enhanced apoptosis induced by staurosporine, which at least partially depended on the activation of caspase-9 and caspase-3. This study is useful for understanding the function of pJAB1 and offers a potential molecular model for the investigation of diseases related to hJAB1.
Related Links	http://dx.doi.org/10.1038/cddis.2013.357
Starting Page	823
File Format	PDF
ISSN	20414889
e-ISSN	20414889
Journal	Cell Death & Disease
Issue Number	10
Volume Number	4
Language	English
Publisher	Nature Publishing Group
Publisher Date	2013-10-01
Access Restriction	Open
Rights Holder	Nature Publishing Group
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Cell Biology Medicine Cancer Research Immunology Cellular and Molecular Neuroscience

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