Screening of a protein that interacts with the matrix attachment region-binding protein from Dunaliella salina.
BIOMED RESEARCH INTERNATIONAL 2014;
2013:862450. [PMID:
24093104 PMCID:
PMC3777206 DOI:
10.1155/2013/862450]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2013] [Revised: 07/21/2013] [Accepted: 08/07/2013] [Indexed: 11/18/2022]
Abstract
We isolated the matrix attachment region-binding protein (MBP) DMBP-1 from Dunaliella salina in our previous studies. MBPs are part of the cis-acting protein family cluster. The regulatory function possibly works through the interaction of the MBPs with each other. In the present study, DMBP-1 was used as the bait in screening the D. salina cDNA library for DMBP-1 interactors that could potentially mediate the DMBP-1-regulated functions. A novel MBP, namely, DMBP-2, was identified as a DMBP-1 binding partner. The cDNA of DMBP-1 was 823 bp long and contained a 573 bp open reading frame, which encoded a polypeptide of 191 amino acids. The interaction between DMBP-2 and DMBP-1 was further confirmed through glutathione S-transferase pull-down assays.
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