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  • Title: NMR assignments of SPOC domain of the human transcriptional corepressor SHARP in complex with a C-terminal SMRT peptide.
    Author: Mikami S, Kanaba T, Ito Y, Mishima M.
    Journal: Biomol NMR Assign; 2013 Oct; 7(2):267-70. PubMed ID: 22987228.
    Abstract:
    The transcriptional corepressor SMRT/HDAC1-associated repressor protein (SHARP) recruits histone deacetylases. Human SHARP protein is thought to function in processes involving steroid hormone responses and the Notch signaling pathway. SHARP consists of RNA recognition motifs (RRMs) in the N-terminal region and the spen paralog and ortholog C-terminal (SPOC) domain in the C-terminal region. It is known that the SPOC domain binds the LSD motif in the C-terminal tail of corepressors silencing mediator for retinoid and thyroid receptor (SMRT)/nuclear receptor corepressor (NcoR). We are interested in delineating the mechanism by which the SPOC domain recognizes the LSD motif of the C-terminal tail of SMRT/NcoR. To this end, we are investigating the tertiary structure of the SPOC/SMRT peptide using NMR. Herein, we report on the (1)H, (13)C and (15)N resonance assignments of the SPOC domain in complex with a SMRT peptide, which contributes towards a structural understanding of the SPOC/SMRT peptide and its molecular recognition.
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