The tripartite motif of nuclear factor 7 is required for its association with transcriptional units.

Abstract excerpt

In amphibian oocytes, the maternal nuclear factor NF7 associates with the elongating pre-mRNAs present on the numerous lateral loops of the lampbrush chromosomes. Here, we have purified NF7 from an oocyte extract by using a combination of ion-exchange chromatography and gel filtration chromatography and demonstrated for the first time that nucleoplasmic NF7 exists primarily as free homotrimers. We confirmed the...

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