SWI3 Subunits of Putative SWI/SNF Chromatin-Remodeling Complexes Play Distinct Roles during Arabidopsis Development(w) From: Plant Cell | Date: September 1, 2005| Author: Et al; JÃ RÃ Swiezewski, Szymon; ¡ ­ os, Gabino; Sarnowski, Tomasz J; sik, Jan | Copyright American Society of Plant Physiologists Sep 2005. Provided by ProQuest LLC.Copyright information

SWITCH/SUCROSE NONFERMENTING (SWI/SNF) chromatin-remodeling complexes mediate ATP-dependent alterations of DNA-histone contacts. The minimal functional core of conserved SWI/SNF complexes consists of a SWI2/SNF2 ATPase, SNF5, SWP73, and a pair of SWI3 subunits. Because of early duplication of the SWI3 gene family in plants, Arabidopsis thaliana encodes four SWI3-like proteins that show remarkable functional diversification. Whereas ATSWI3A and ATSWI3B form homodimers and heterodimers and inte...

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