期刊
JOURNAL OF BIOLOGICAL CHEMISTRY
卷 280, 期 11, 页码 9980-9984出版社
AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC
DOI: 10.1074/jbc.C400401200
关键词
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Calcineurin (CN) is an important regulator of developmental processes and in adults controls the immune response through its regulation of nuclear factor of activated T cells (NFAT). The physical interaction between CN and NFATs is an essential step in the activation of NFAT-dependent genes by calcium signals. Using deletional and substitutional analyses, we have identified a 13-amino acid region within CN that is essential for the interaction with NFAT and with two other CN-binding proteins, AKAP79 and Cabin-1. The interaction of CN with these proteins is selectively disrupted by substitution of specific amino acid residues within this region, indicating that NFAT and other CN-interacting proteins bind differentially to CN. This selectivity suggests that the region identified in CN could be a potential molecular target for immunosuppressive and other therapeutic interventions in diseases involving the CN/NFAT pathway.
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