Journal
MOLECULAR CELL
Volume 8, Issue 3, Pages 531-543Publisher
CELL PRESS
DOI: 10.1016/S1097-2765(01)00345-8
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NURF is an ISWI complex of four proteins that uses the energy of ATP hydrolysis to catalyze nucleosome sliding. Three NURF components have been identified previously. We have cloned cDNA encoding the largest NURF subunit, revealing a 301 kDa polypeptide (NURF301) that shares structural motifs with ACF1. We have reconstituted full and partial NURF complexes from recombinant proteins and show that NURF301 and the ISWI ATPase are necessary and sufficient for accurate and efficient nucleosome sliding. An HMGA/HMGI(Y)-like domain of NURF301 that facilitates nucleosome sliding indicates the importance of DNA conformational changes in the sliding mechanism. NURF301 also shows interactions with sequence-specific transcription factors, providing a basis for targeted recruitment of the NURF complex to specific genes.
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