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The master transcriptional regulator Blimp-1/PRDM1 contains an N-terminal PR/SET domain and five C2H2 zinc fingers located near its C-terminus that mediate DNA binding, nuclear import and recruitment of histone modifying enzymes. These activities account for its ability to control cell-fate decisions in the embryo and govern tissue homeostasis in multiple cell types in the adult organism. New experiments demonstrate an increasing degree of complexity associated with Blimp-1/PRDM1 target site selection and its associations with epigenetic modifiers. Our current understanding of how this single unique species within the family of structurally similar PRDM proteins regulates gene expression patterns and governs developmental programmes in different cell lineages is discussed.

Original publication

DOI

10.1016/j.gde.2009.05.005

Type

Journal article

Journal

Curr Opin Genet Dev

Publication Date

08/2009

Volume

19

Pages

379 - 385

Keywords

Animals, Cell Differentiation, Cell Lineage, DNA-Binding Proteins, Gene Expression Regulation, Developmental, Histone Deacetylases, Humans, Mice, Mice, Transgenic, Mutation, Nuclear Proteins, Positive Regulatory Domain I-Binding Factor 1, Promoter Regions, Genetic, Protein Structure, Tertiary, Repressor Proteins, Transcription Factors, Zebrafish Proteins