Download MendeleyCrystal Structure of Get4-Get5 Complex and its Interactions with Sgt2, Get3, and Ydj1.
Chang, Y.-W., Chuang, Y.-C., Ho, Y.-C., Cheng, M.-Y., Sun, Y.-J., Hsiao, C.-D., Wang, C.(2010) J Biol Chem 285: 9962
- PubMed: 20106980
- DOI: https://doi.org/10.1074/jbc.M109.087098
- Primary Citation of Related Structures:
2WPV - PubMed Abstract:
Get3, Get4, and Get5 in Saccharomyces cerevisiae participate in the insertion of tail-anchored proteins into the endoplasmic reticulum membrane. We elucidated the interaction between Get4 and Get5 and investigated their interaction with Get3 and a tetratricopeptide repeat-containing protein, Sgt2. Based on co-immunoprecipitation and crystallographic studies, Get4 and Get5 formed a tight complex, suggesting that they constitute subunits of a larger complex. In contrast, although Get3 interacted physically with the Get4-Get5 complex, low amounts of Get3 co-precipitated with Get5, implying a transient interaction between Get3 and Get4-Get5. Sgt2 also interacted with Get5, although the amount of Sgt2 that co-precipitated with Get5 varied. Moreover, GET3, GET4, and GET5 interacted genetically with molecular chaperone YDJ1, suggesting that chaperones might also be involved in the insertion of tail-anchored proteins.
Organizational Affiliation:
Institute of Molecular Biology, Academia Sinica, Taipei 115; Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu 300.
