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Critical Reviews™ in Eukaryotic Gene Expression
Impact-faktor: 1.841 5-jähriger Impact-Faktor: 1.927 SJR: 0.649 SNIP: 0.516 CiteScore™: 1.96

ISSN Druckformat: 1045-4403
ISSN Online: 2162-6502

Critical Reviews™ in Eukaryotic Gene Expression

DOI: 10.1615/CritRevEukarGeneExpr.v10.i1.60
6 pages

Nuclear Matrix Targeting of Steroid Receptors: Specific Signal Sequences and Acceptor Proteins

Donald B. DeFranco
Department of Biological Sciences, Neuroscience and Pharmacology, University of Pittsburgh, Pittsburgh, PA 15260
Jennifer Guerrero
Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260

ABSTRAKT

The nuclear matrix provides the framework for various processes that occur within the nucleus such as transcription, replication, and splicing. As the composition of the nuclear matrix varies between different cell types, the matrix may influence cell-type-specific gene expression. A number of transcription factors have been shown to be associated with the nuclear matrix, including steroid hormone receptors that were the first transcriptional regulatory proteins localized to this compartment. In this review we highlight the most recent advances in our understanding of steroid hormone receptor targeting to the matrix. A specific nuclear matrix targeting signal (NMTS) has been identified within the glucocorticoid receptor (GR) that includes portions of its DNA-binding domain and tau2 transactivation domains. Distinct nuclear matrix acceptor proteins appear to interact within the GR NMTS and impart divergent effects on the transcriptional regulatory properties of the receptor.