منابع مشابه
Abnormal centrosomal structure and duplication in Cep135-deficient vertebrate cells
Centrosomes are key microtubule-organizing centers that contain a pair of centrioles, conserved cylindrical, microtubule-based structures. Centrosome duplication occurs once per cell cycle and relies on templated centriole assembly. In many animal cells this process starts with the formation of a radially symmetrical cartwheel structure. The centrosomal protein Cep135 localizes to this cartwhee...
متن کاملCentriolar satellites assemble centrosomal microcephaly proteins to recruit CDK2 and promote centriole duplication
Primary microcephaly (MCPH) associated proteins CDK5RAP2, CEP152, WDR62 and CEP63 colocalize at the centrosome. We found that they interact to promote centriole duplication and form a hierarchy in which each is required to localize another to the centrosome, with CDK5RAP2 at the apex, and CEP152, WDR62 and CEP63 at sequentially lower positions. MCPH proteins interact with distinct centriolar sa...
متن کاملNEK7 is essential for centriole duplication and centrosomal accumulation of pericentriolar material proteins in interphase cells.
The centrosomes in dividing cells follow a series of cyclical events of duplication and separation, which are tightly linked to the cell cycle. Serine/threonine-protein kinase NEK7 (NEK7) is a centrosomal kinase that is required for proper spindle formation during mitosis. In this study, we observed that centriole duplication was inhibited in NEK7-depleted cells. Ectopic expression of centrosom...
متن کاملrhod-2, ratiometric pericam and aequorin
The dynamics of mitochondrial [Ca 2+ ] ([Ca 2+ ] M) plays a key role in a variety of cellular processes. The most important methods available to monitor [Ca 2+ ] M are fluorescent dyes such as rhod-2 and specifically targeted proteins such as aequorin or pericam. However, significant discrepancies, both quantitative and qualitative, exist in the literature between the results obtained with diff...
متن کاملThe Caenorhabditis elegans Centrosomal Protein SPD-2 Is Required for both Pericentriolar Material Recruitment and Centriole Duplication
BACKGROUND The centrosome is composed of a centriole pair and pericentriolar material (PCM). By marking the site of PCM assembly, the centrioles define the number of centrosomes present in the cell. The PCM, in turn, is responsible for the microtubule (MT) nucleation activity of centrosomes. Therefore, in order to assemble a functional bipolar mitotic spindle, a cell needs to control both centr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Small GTPases
سال: 2013
ISSN: 2154-1248,2154-1256
DOI: 10.4161/sgtp.23707