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Protein purification and cDNA cloning of suGF1 : a sea urchin nuclear DNA-binding factor

The upstream regulatory regions of numerous genes contain contiguous deoxyguanosine residues (G·C-rich sequences) which have been implicated in the regulation of gene expression, since they may involve alterations in their DNA structure, the binding of G-string factors and in some cases even the dis...

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Main Author: Scherer, Sonja Daniela
Format: Thesis
Language:English
Published: Department of Molecular and Cell Biology 2016
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access_status_str Open Access
author Scherer, Sonja Daniela
author_browse Scherer, Sonja Daniela
author_facet Scherer, Sonja Daniela
author_sort Scherer, Sonja Daniela
collection Thesis
description The upstream regulatory regions of numerous genes contain contiguous deoxyguanosine residues (G·C-rich sequences) which have been implicated in the regulation of gene expression, since they may involve alterations in their DNA structure, the binding of G-string factors and in some cases even the displacement of a nucleosome positioned over this area. A poly( dG).poly( de)-binding protein (suGF1) has previously been identified and purified on a small scale from embryonic nuclear extracts of the sea urchin Parechinus angulosus (1, 2). suGF1 binds in vitro to the H1-H4 intergenic region of the early histone gene battery, and the recognition site contains 11 contiguous Gs which are incorporated into a positioned nucleosome core in vitro. suGFI may be a member of a family of Gstring factors which could be involved in the developmental regulation of unrelated genes in various organisms. Prior to the commencement of this project no protein or DNA sequence information was available on the protein. The main objective of this thesis was to obtain the eDNA and the primary amino acid sequence for suGFI. Using this information, additional aims were to determine the developmental distribution of the protein and obtain insight into the molecular basis of the regulatory function of suGF 1 by analysis of the primary protein structure and expression of the eDNA.
format Thesis
id oai:open.uct.ac.za:11427/21905
institution University of Cape Town (South Africa)
language eng
last_indexed 2026-06-10T12:33:26.520Z
license_str Not specified — see source repository
provenance_str_mv Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository
publishDate 2016
publishDateRange 2016
publishDateSort 2016
publisher Department of Molecular and Cell Biology
publisherStr Department of Molecular and Cell Biology
record_format dspace
source_str UCTD — University of Cape Town Open Access Repository
spelling oai:open.uct.ac.za:11427/21905 Protein purification and cDNA cloning of suGF1 : a sea urchin nuclear DNA-binding factor Scherer, Sonja Daniela Molecular and Cell Biology The upstream regulatory regions of numerous genes contain contiguous deoxyguanosine residues (G·C-rich sequences) which have been implicated in the regulation of gene expression, since they may involve alterations in their DNA structure, the binding of G-string factors and in some cases even the displacement of a nucleosome positioned over this area. A poly( dG).poly( de)-binding protein (suGF1) has previously been identified and purified on a small scale from embryonic nuclear extracts of the sea urchin Parechinus angulosus (1, 2). suGF1 binds in vitro to the H1-H4 intergenic region of the early histone gene battery, and the recognition site contains 11 contiguous Gs which are incorporated into a positioned nucleosome core in vitro. suGFI may be a member of a family of Gstring factors which could be involved in the developmental regulation of unrelated genes in various organisms. Prior to the commencement of this project no protein or DNA sequence information was available on the protein. The main objective of this thesis was to obtain the eDNA and the primary amino acid sequence for suGFI. Using this information, additional aims were to determine the developmental distribution of the protein and obtain insight into the molecular basis of the regulatory function of suGF 1 by analysis of the primary protein structure and expression of the eDNA. 2016-09-25T16:47:09Z 2016-09-25T16:47:09Z 1998 Doctoral Thesis Doctoral PhD http://hdl.handle.net/11427/21905 eng application/pdf Department of Molecular and Cell Biology Faculty of Science University of Cape Town
spellingShingle Molecular and Cell Biology
Scherer, Sonja Daniela
Protein purification and cDNA cloning of suGF1 : a sea urchin nuclear DNA-binding factor
thesis_degree_str Doctoral
title Protein purification and cDNA cloning of suGF1 : a sea urchin nuclear DNA-binding factor
title_full Protein purification and cDNA cloning of suGF1 : a sea urchin nuclear DNA-binding factor
title_fullStr Protein purification and cDNA cloning of suGF1 : a sea urchin nuclear DNA-binding factor
title_full_unstemmed Protein purification and cDNA cloning of suGF1 : a sea urchin nuclear DNA-binding factor
title_short Protein purification and cDNA cloning of suGF1 : a sea urchin nuclear DNA-binding factor
title_sort protein purification and cdna cloning of sugf1 a sea urchin nuclear dna binding factor
topic Molecular and Cell Biology
url http://hdl.handle.net/11427/21905
work_keys_str_mv AT scherersonjadaniela proteinpurificationandcdnacloningofsugf1aseaurchinnucleardnabindingfactor