Investigation of the intra-cellular localisation of Retinoblastoma Binding Protein 6 using immunofluorescence microscopy

dc.contributor.advisorPugh, David JR
dc.contributor.authorSzmyd-Potapczuk, Anna Victoria
dc.date.accessioned2018-10-03T07:23:04Z
dc.date.accessioned2024-05-08T13:07:36Z
dc.date.available2018-12-31T22:10:06Z
dc.date.available2024-05-08T13:07:36Z
dc.date.issued2017
dc.descriptionPhilosophiae Doctor - PhD (Biochemistry)
dc.description.abstractHuman Retinoblastoma Binding Protein 6 (RBBP6) is a 200 kDa protein that has been implicated in a number of crucial cellular processes. It forms part of the mRNA 3'-end processing complex in both humans and yeast, and it contains an RS-like domain and interacts with core splicing proteins, suggesting multiple roles in mRNA processing. Through its RING finger domain it has been implicated in catalysing ubiquitination of the tumour suppressor p53, the oncogene Y-Box Binding Protein 1 (YB-1) and the DNA replication-associated protein zBTB38. It is one of only a few proteins known to bind to both p53 and pRb. At the N-terminus of the protein is the DWNN domain, an ubiquitin-like domain which is found only in this protein family. Four protein isoforms of RBBP6 have been identified in humans, all of which contain the DWNN domain: isoform 1 contains 1972 residues, isoform 2 contains 1758 residues and isoform 4 contains 952 residues. Isoform 3, which contains the first 101 residues of the full length protein (isoform 1), including the DWNN domain, followed by an unique 17-amino acid tail, is reported to be expressed independently of the other isoforms and to be down-regulated in a number of cancers.
dc.identifier.urihttps://hdl.handle.net/10566/13181
dc.language.isoen
dc.publisherUniversity of the Western Cape
dc.rights.holderUniversity of the Western Cape
dc.subjectRetinoblastoma binding protein 6, nuclear speckles, DWNN, colocalisation, 3'-end mRNA processing
dc.titleInvestigation of the intra-cellular localisation of Retinoblastoma Binding Protein 6 using immunofluorescence microscopy

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