|  Help  |  About  |  Contact Us

Publication : Characterization of centrosomal association of nucleophosmin/B23 linked to Crm1 activity.

First Author  Shinmura K Year  2005
Journal  FEBS Lett Volume  579
Issue  29 Pages  6621-34
PubMed ID  16297385 Mgi Jnum  J:103773
Mgi Id  MGI:3610707 Doi  10.1016/j.febslet.2005.10.057
Citation  Shinmura K, et al. (2005) Characterization of centrosomal association of nucleophosmin/B23 linked to Crm1 activity. FEBS Lett 579(29):6621-34
abstractText  Nucleophosmin (NPM)/B23 is a multifunctional protein, involving in a wide variety of basic cellular processes, including ribosome assembly, DNA duplication, nucleocytoplasmic trafficking, and centrosome duplication. It has previously been shown that NPM/B23 localizes to centrosomes, and dissociate from centrosomes upon phosphorylation by Cdk2/cyclin E. However, detail characterization of centrosomal association of NPM/B23 has been hampered by the lack of appropriate antibodies that efficiently detects centrosomally localized NPM/B23, as well as by apparent loss of natural behavior of NPM/B23 when tagged with fluorescent proteins. Here, by the use of newly generated anti-NPM/B23 antibody, we conducted a careful analysis of centrosomal localization of NPM/B23. We found that NPM/B23 localizes between the paired centrioles of unduplicated centrosomes, suggesting the role of NPM/B23 in the centriole pairing. Upon initiation of centrosome duplication, some NPM/B23 proteins remain at mother centrioles of the parental centriole pairs. We further found that inhibition of Crm1 nuclear export receptor results in both accumulation of cyclin E at centrosomes and efficient dissociation of NPM/B23 from centrosomes.
Quick Links:
 
Quick Links:
 

Expression

Publication --> Expression annotations

 

Other

3 Bio Entities

Trail: Publication

0 Expression