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University of Technology, Sydney

1. Connerty, Patrick Peter. Investigating the regulation of miRNA biogenesis and Argonaute2 by RNA binding proteins.

Degree: 2016, University of Technology, Sydney

microRNAs (miRNAs) are small non-coding RNAs which post-transcriptionally regulate gene expression. As miRNAs control many important biological processes it is important that their own production is highly controlled too. A range of auxiliary proteins involved in regulating miRNA biogenesis have been documented extensively, highlighting the complexity of the miRNA pathway. This study identifies novel roles of RNA binding proteins which are both canonical and auxiliary to the miRNA biogenesis pathway. Here, we demonstrate that inhibition of p72 and KHSRP decreases Ago2 protein stability through disturbing miRNA biogenesis and therefore miRNA abundance. Furthermore, we have demonstrated that Ago2 is subject to multiple types of regulation as transient knockdown of Dicer stabilises Ago2 protein despite a decrease in miRNA abundance via an unknown mechanism. Additionally, we have established that miRNA biogenesis is subject to a possible negative feedback mechanisms in which impairment of Dicer function both promotes and inhibits pri-miRNA production in a pri-miRNA and cell specific manner. Finally, this study provides evidence to suggest that both mature miRNA levels and miRNA target abundance can stabilise miRNA biogenesis and promote pri-miRNA production in the absence of key and auxiliary proteins involved in miRNA biogenesis.

Subjects/Keywords: microRNAs (miRNAs); miRNA biogenesis.; RNA binding proteins.; p72 and KHSRP.; Ago2 protein stability.; Dicer.; pri-miRNA.

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Connerty, P. P. (2016). Investigating the regulation of miRNA biogenesis and Argonaute2 by RNA binding proteins. (Thesis). University of Technology, Sydney. Retrieved from http://hdl.handle.net/10453/90062

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Connerty, Patrick Peter. “Investigating the regulation of miRNA biogenesis and Argonaute2 by RNA binding proteins.” 2016. Thesis, University of Technology, Sydney. Accessed January 23, 2020. http://hdl.handle.net/10453/90062.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Connerty, Patrick Peter. “Investigating the regulation of miRNA biogenesis and Argonaute2 by RNA binding proteins.” 2016. Web. 23 Jan 2020.

Vancouver:

Connerty PP. Investigating the regulation of miRNA biogenesis and Argonaute2 by RNA binding proteins. [Internet] [Thesis]. University of Technology, Sydney; 2016. [cited 2020 Jan 23]. Available from: http://hdl.handle.net/10453/90062.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Connerty PP. Investigating the regulation of miRNA biogenesis and Argonaute2 by RNA binding proteins. [Thesis]. University of Technology, Sydney; 2016. Available from: http://hdl.handle.net/10453/90062

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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