Crystal structure of folliculin reveals a hidDENN function in genetically inherited renal cancer

Autor: Ravi K. Nookala, Lars Langemeyer, Angela Pacitto, Bernardo Ochoa-Montaño, Jane C. Donaldson, Beata K. Blaszczyk, Dimitri Y. Chirgadze, Francis A. Barr, J. Fernando Bazan, Tom L. Blundell
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Open Biology, Vol 2, Iss 8 (2012)
Druh dokumentu: article
ISSN: 2046-2441
DOI: 10.1098/rsob.120071
Popis: Mutations in the renal tumour suppressor protein, folliculin, lead to proliferative skin lesions, lung complications and renal cell carcinoma. Folliculin has been reported to interact with AMP-activated kinase, a key component of the mammalian target of rapamycin pathway. Most cancer-causing mutations lead to a carboxy-terminal truncation of folliculin, pointing to a functional importance of this domain in tumour suppression. We present here the crystal structure of folliculin carboxy-terminal domain and demonstrate that it is distantly related to differentially expressed in normal cells and neoplasia (DENN) domain proteins, a family of Rab guanine nucleotide exchange factors (GEFs). Using biochemical analysis, we show that folliculin has GEF activity, indicating that folliculin is probably a distantly related member of this class of Rab GEFs.
Databáze: Directory of Open Access Journals