Your browser version may not work well with NCBI's Web applications. More information here...
1: Mol Cell Biol. 2003 Oct;23(19):6759-68.Click here to read Click here to read Links

Functional analysis of the subunits of the chromatin assembly factor RSF.

Loyola A, Huang JY, LeRoy G, Hu S, Wang YH, Donnelly RJ, Lane WS, Lee SC, Reinberg D.

Howard Hughes Medical Institute, University of Medicine and Dentistry of New JerseyRobert Wood Johnson Medical School, Piscataway, New Jersey 08854, USA.

The human ISWI-containing factor RSF (for remodeling and spacing factor) is composed of two subunits: the ATPase hSNF2H and p325 (Rsf-1), a protein encoded by a novel human gene. We previously showed that RSF mediates nucleosome deposition and generates regularly spaced nucleosome arrays. Here we report the characterization of the largest subunit of RSF, Rsf-1. We found that Rsf-1 is a highly acidic protein containing a plant homology domain. The present study includes the cloning of Rsf-1, the preparation of recombinant RSF, and the dissection of the role of each subunit in the chromatin assembly reaction. The sequence of the gene for Rsf-1 includes a recently characterized cDNA, HBXAP; postulated to be involved in the transcriptional regulation of the hepatitis B virus. HBXAP actually contains a 252-amino-acid truncation of the amino terminus of Rsf-1. Finally, comparison of HBXAP and Rsf-1 properties shows that they are functionally different.

PMID: 12972596 [PubMed - indexed for MEDLINE]

PMCID: PMC193931