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Association of Myc with the zinc-finger protein Miz-1 defines a novel pathway for gene regulation by Myc.

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Zentrum für Molekulare Biologie Heidelberg (ZMBH), Germany.


The Myc protein activates transcription as part of a complex with its partner protein, Max. Myc-transformed cells are also characterised by the loss of expression of a number of genes and this repressive effect of Myc on gene expression may not be mediated by the Myc/Max complex. We recently isolated by two-hybrid cloning a novel zinc-finger protein that associates with the carboxy-terminus of Myc. We have termed this protein Miz-1 (Myc-interacting zinc finger protein). Some of the properties of Miz-1 suggest that it may be involved in gene repression by Myc in vivo.

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