Cryo-Electron Tomography and Proteomics studies of centrosomes from differentiated quiescent thymocytes.
Sci Rep
; 9(1): 7187, 2019 05 10.
Article
em En
| MEDLINE
| ID: mdl-31076588
ABSTRACT
We have used cryo Electron Tomography, proteomics and immunolabeling to study centrosomes isolated from the young lamb thymus, an efficient source of quiescent differentiated cells. We compared the proteome of thymocyte centrosomes to data published for KE37 cells, focusing on proteins associated with centriole disengagement and centrosome separation. The data obtained enhances our understanding of the protein system joining the centrioles, a system comprised of a branched network of fibers linked to an apparently amorphous density that was partially characterized here. A number of proteins were localized to the amorphous density by immunolabeling (C-NAP1, cohesin SMC1, condensin SMC4 and NCAPD2), yet not DNA. In conjuction, these data not only extend our understanding of centrosomes but they will help refine the model that focus on the protein system associated with the centriolar junction.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Centrossomo
/
Proteômica
/
Timócitos
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article