Interaction among Saccharomyces cerevisiae pheromone receptors during endocytosis

Autor: Chien-I Chang, Kimberly A. Schandel, Duane D. Jenness
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Biology Open, Vol 3, Iss 4, Pp 297-306 (2014)
Druh dokumentu: article
ISSN: 2046-6390
DOI: 10.1242/bio.20146866
Popis: This study investigates endocytosis of Saccharomyces cerevisiae α-factor receptor and the role that receptor oligomerization plays in this process. α-factor receptor contains signal sequences in the cytoplasmic C-terminal domain that are essential for ligand-mediated endocytosis. In an endocytosis complementation assay, we found that oligomeric complexes of the receptor undergo ligand-mediated endocytosis when the α-factor binding site and the endocytosis signal sequences are located in different receptors. Both in vitro and in vivo assays suggested that ligand-induced conformational changes in one Ste2 subunit do not affect neighboring subunits. Therefore, recognition of the endocytosis signal sequence and recognition of the ligand-induced conformational change are likely to be two independent events.
Databáze: Directory of Open Access Journals