First Author | Hurlstone AF | Year | 2002 |
Journal | Biochem J | Volume | 364 |
Issue | Pt 1 | Pages | 255-64 |
PubMed ID | 11988099 | Mgi Jnum | J:175103 |
Mgi Id | MGI:5142369 | Doi | 10.1042/bj3640255 |
Citation | Hurlstone AF, et al. (2002) Cloning and characterization of hELD/OSA1, a novel BRG1 interacting protein. Biochem J 364(Pt 1):255-64 |
abstractText | A highly conserved multisubunit enzymic complex, SWI/SNF, participates in the regulation of eukaryote gene expression through its ability to remodel chromatin. While a single component of SWI/SNF, Swi2 or a related protein, can perform this function in vitro, the other components appear to modulate the activity and specificity of the complex in vivo. Here we describe the cloning of hELD/OSA1, a 189 KDa human homologue of Drosophila Eld/Osa protein, a constituent of Drosophila SWI/SNF. By comparing conserved peptide sequences in Eld/Osa homologues we define three domains common to all family members. A putative DNA binding domain, or ARID (AT-rich DNA-interacting domain), may function in targetting SWI/SNF to chromatin. Two other domains unique to Eld/Osa proteins, EHD1 and EHD2, map to the C-terminus. We show that EHD2 mediates binding to Brahma-related gene 1 (BRG1), a human homologue of yeast Swi2. EHD1 and EHD2 also appear capable of interacting with each other. Using an antibody raised against EHD2 of hELD/OSA1, we detected Eld/Osa1 in endogenous SWI/SNF complexes derived from mouse brain. |