Publication Abstract from PubMed
Binding of the BAG domain to the eukaryotic chaperone heat-shock protein (Hsp70) promotes ATP-dependent release of the protein substrate from Hsp70. Although the murine and human BAG domains have been shown to form an antiparallel three-helix bundle, the Caenorhabditis elegans BAG domain is formed by two antiparallel helices, while the third helix is extended away and stabilized by crystal-packing interactions. A small beta-sheet between helices 2 and 3 interferes with formation of the intramolecular three-helix bundle. However, intermolecular three-helix bundles are observed throughout the crystal packing and suggest that stable functional dimers and tetramers can be formed in solution. The structure may represent a new folding type of the BAG domain.
Structural genomics of Caenorhabditis elegans: structure of the BAG domain.,Symersky J, Zhang Y, Schormann N, Li S, Bunzel R, Pruett P, Luan CH, Luo M Acta Crystallogr D Biol Crystallogr. 2004 Sep;60(Pt 9):1606-10. Epub 2004, Aug 26. PMID:15333932[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
