Abstract:
:We previously showed that increased intracellular calcium can modulate Importin (Imp)β1-dependent nuclear import of SRY-related chromatin remodeling proteins. Here we extend this work to show for the first time that high intracellular calcium inhibits Impα/β1- or Impβ1-dependent nuclear protein import generally. The basis of this relates to the mislocalisation of the transport factors Impβ1 and Ran, which show significantly higher nuclear localization in contrast to various other factors, and RCC1, which shows altered subnuclear localisation. The results here establish for the first time that intracellular calcium modulates conventional nuclear import through direct effects on the nuclear transport machinery.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Kaur G,Ly-Huynh JD,Jans DAdoi
10.1016/j.bbrc.2014.06.047subject
Has Abstractpub_date
2014-07-18 00:00:00pages
812-7issue
1eissn
0006-291Xissn
1090-2104pii
S0006-291X(14)01121-8journal_volume
450pub_type
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