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Published byErin Anthony Modified over 9 years ago
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Use GFP-tagged Nahza deletions Stain for EGFP and tubulin Add carrier tubulins and Taxol to Caco2 extracts Collect MT pellets Mix Nehza-Flag w/ purified tubulins See if they CO-IP
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Look at localization of Nezha and MTs Characterize by including EB1 In vitro MT-capping Nezha-CC1F, Alexa labeled, His tagged Add rhodamine-labeled and unlabeled tubulins sequentially
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Dynamics of MTs Anchored at Nezha Transfect Caco2 w/ Nezha-KOR and GFP-α-tubulin Record behavior (time lapse)
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Dynamics of MTs Anchored at Nezha Transfect Caco2 w/ Nezha-KOR and EB1-GFP Record behavior (time lapse)
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Analyze interactions btwn Nezha and MTs at cell-junctions Look at Nezha signals at cell-cell bounderies
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Tested to see if MTs tethering to PLEKHA7- Nezha complex is to provide a track for dynein or another motor Found KIFC3 Knockdown Nezha or PLEKHA7 by siRNA See how KIFC3 is affected Overexpress Nezha See how KIFC3 is affected
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KIFC3 ZA recruitment is PLEKHA7/Nezha Dependant Transfect Caco2 w/ KIFC3-GFP and E-cadherin-KOR Record behavior (time lapse)
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Knockdown KIFC3 (siRNA)
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Treat cells w/ nocodazole Observe MTs are required for ZA assembly Sensitivity of these proteins to MT depolymerization differs Use FRAP to test whether KIFC3 uses Nezha-anchored MTs to acess cell junction
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Organizing Junctions at the Cell-Cell Interface A Complex of Nezha and PLEKHA7 Links Microtubules with Cadherins at Junctions between Epithelial Cells
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Does Nezha have nucleation activity? Does it cooperate with ninein, which also captures MTs at their minus ends? Is there a role for Nezha in the cytoplasm? How did it localize there? Is there a cooperative interaction between Nezha and MTs to regulate the binding of PLEKHA7? What is the mechanism that makes this complex ZA specific? Is there a role for these proteins at the centrosome? What is the detailed role of KIFC3? How is tissue morphogenesis affected?
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