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  • Title: Analysis of functional domains of the host cell factor involved in VP16 complex formation.
    Author: Hughes TA, La Boissière S, O'Hare P.
    Journal: J Biol Chem; 1999 Jun 04; 274(23):16437-43. PubMed ID: 10347205.
    Abstract:
    We present biochemical analyses of the regions of the host cell factor (HCF) involved in VP16 complex formation and in the association between the N- and C-terminal domains of HCF itself. We show that the kelch repeat region of HCF (residues 1-380) is sufficient for VP16 complex formation, but that residues C-terminal to the repeats (positions 381-450) interfere with this activity. However, these latter residues are required for the interaction between the N- and C-terminal regions of HCF. The extreme C-terminal region of HCF, corresponding to an area of strong conservation with a Caenorhabditis elegans homologue, is sufficient for interaction with the N-terminal region. These results are discussed with respect to possible differences in the roles of HCF in VP16 activity versus its normal cellular function.
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