Recommend Fly to your librarian for 2008. Download form here.

Sign up for Table of Contents Alerts!

Important News: Fly has been accepted for indexing at PubMed.

Email this page

Print this page

Research Papers

The Drosophila KASH domain proteins Msp-300 and Klarsicht and the SUN domain protein Klaroid have no essential function during oogenesis

Martin Technau and Siegfried Roth

This is an open-access article

 Download PDF

If the document does not open, please right-click on the link (control-click on a Macintosh) and select the option to save the file to disk.

Proteins harboring a C-terminal KASH (Klarsicht/Anc-1/Syne Homology) domain, which attaches to the nucleus, have been identified in many different organisms. Two KASH proteins are known from Drosophila, Msp-300 and Klarsicht, the latter of which plays a role in nuclear migration during eye development. Here, we show that a complete deletion of Msp-300 leads to larval lethality. This lethality appears to be due to Msp-300 isoforms containing the N-terminal actin binding, but not the C-terminal KASH domain. Msp-300 and Klar are expressed during oogenesis and localize to the nuclear envelope of the germ line nuclei. However, neither Msp-300 single mutants nor Msp-300; klar double mutants cause defects in nuclear migration or anchoring during oogenesis. Germ line nuclear envelope localization of both KASH domain proteins depends on klaroid, the only Drosophila SUN domain homolog expressed in females. Like Msp-300 and klar, klaroid is also dispensable for normal ovarian development.

Authors

Martin Technau

Cologne University

Siegfried Roth

Cologne University

This is an open-access article

 Download PDF

If the document does not open, please right-click on the link (control-click on a Macintosh) and select the option to save the file to disk.