p600, a unique protein required for membrane morphogenesis and cell survival.

Article Details

Citation

Nakatani Y, Konishi H, Vassilev A, Kurooka H, Ishiguro K, Sawada J, Ikura T, Korsmeyer SJ, Qin J, Herlitz AM

p600, a unique protein required for membrane morphogenesis and cell survival.

Proc Natl Acad Sci U S A. 2005 Oct 18;102(42):15093-8. Epub 2005 Oct 7.

PubMed ID
16214886 [ View in PubMed
]
Abstract

In this article, we identify and characterize p600, a unique 600-kDa retinoblastoma protein- and calmodulin-binding protein. In the nucleus, p600 and retinoblastoma protein seem to act as a chromatin scaffold. In the cytoplasm, p600 and clathrin form a meshwork structure, which could contribute to cytoskeletal organization and membrane morphogenesis. Reduced expression of p600 with interference RNA abrogates integrin-mediated ruffled membrane formation and, furthermore, prevents activation of integrin-mediated survival pathways. Consequently, knockdown of p600 sensitizes cells to apoptosis induced by cell detachment. These findings provide mechanistic insight into the regulation of membrane-proximal events in tumorigenesis.

DrugBank Data that Cites this Article

Polypeptides
NameUniProt ID
Retinoblastoma-associated proteinP06400Details
E3 ubiquitin-protein ligase UBR4Q5T4S7Details