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Novel Protein Regulators of Human Ribosome Biogenesis- [electronic resource]
Novel Protein Regulators of Human Ribosome Biogenesis- [electronic resource]
상세정보
- 자료유형
- 학위논문파일 국외
- 최종처리일시
- 20240214100322
- ISBN
- 9798379782252
- DDC
- 574
- 서명/저자
- Novel Protein Regulators of Human Ribosome Biogenesis - [electronic resource]
- 발행사항
- [S.l.]: : Yale University., 2023
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2023
- 형태사항
- 1 online resource(274 p.)
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-01, Section: B.
- 주기사항
- Advisor: Baserga, Susan J.
- 학위논문주기
- Thesis (Ph.D.)--Yale University, 2023.
- 사용제한주기
- This item must not be sold to any third party vendors.
- 초록/해제
- 요약Ribosome biogenesis is the essential process that all living organisms need to produce the protein synthesizing machinery within cells. It has become apparent in recent years that ribosome biogenesis in higher eukaryotes, like humans, is increasingly complex. When this process becomes dysregulated it can lead to diseases, such as cancer when upregulated and ribosomopathies when inhibited, emphasizing the importance of learning more about the process of making ribosomes. To identify novel regulators of human ribosome biogenesis, the Baserga laboratory previously developed and performed a genome-wide RNAi screen. Here, I build upon those findings to interrogate the function of a handful of these novel human ribosome biogenesis regulators. After discovery that one of the novel regulators, CRK, likely represents an siRNA off-target effect, I helped validate the original screen results by performing a new 5-EU incorporation assay testing for more functional roles in nucleolar ribosomal RNA biogenesis. Next, I examined the molecular functions of high-confidence individual hits in the ribosome biogenesis pathway. I discovered that NOL7 is the likely ortholog of yeast Bud21 and is required for early pre-ribosomal RNA stability. I showed that large subunit biogenesis factors, RSL24D1 and the PeBoW (PES1-BOP1-WDR12) complex, interact with and regulate RNA polymerase I levels. Finally, I studied the cytidine deaminase, APOBEC3A's, function in large ribosomal subunit biogenesis. In doing so, I reveal for the first time the possibility that the pre-ribosomal RNA can be edited by this enzyme during its maturation. These results underscore the nuances of human ribosome biogenesis regulation and push forward our understanding of this essential process with implications in treatment of disease, primarily cancer.
- 일반주제명
- Biochemistry.
- 일반주제명
- Molecular biology.
- 일반주제명
- Cellular biology.
- 키워드
- Ribosome
- 키워드
- Ribosomopathies
- 키워드
- Cancer
- 기타저자
- Yale University Molecular Biophysics and Biochemistry
- 기본자료저록
- Dissertations Abstracts International. 85-01B.
- 기본자료저록
- Dissertation Abstract International
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008240612s2023 us |||||||||||||||c||eng d■001000016931885
■00520240214100322
■006m o d
■007cr#unu||||||||
■020 ▼a9798379782252
■035 ▼a(MiAaPQ)AAI30312679
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a574
■1001 ▼aMcCool, Mason Alexander.
■24510▼aNovel Protein Regulators of Human Ribosome Biogenesis▼h[electronic resource]
■260 ▼a[S.l.]:▼bYale University. ▼c2023
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2023
■300 ▼a1 online resource(274 p.)
■500 ▼aSource: Dissertations Abstracts International, Volume: 85-01, Section: B.
■500 ▼aAdvisor: Baserga, Susan J.
■5021 ▼aThesis (Ph.D.)--Yale University, 2023.
■506 ▼aThis item must not be sold to any third party vendors.
■520 ▼aRibosome biogenesis is the essential process that all living organisms need to produce the protein synthesizing machinery within cells. It has become apparent in recent years that ribosome biogenesis in higher eukaryotes, like humans, is increasingly complex. When this process becomes dysregulated it can lead to diseases, such as cancer when upregulated and ribosomopathies when inhibited, emphasizing the importance of learning more about the process of making ribosomes. To identify novel regulators of human ribosome biogenesis, the Baserga laboratory previously developed and performed a genome-wide RNAi screen. Here, I build upon those findings to interrogate the function of a handful of these novel human ribosome biogenesis regulators. After discovery that one of the novel regulators, CRK, likely represents an siRNA off-target effect, I helped validate the original screen results by performing a new 5-EU incorporation assay testing for more functional roles in nucleolar ribosomal RNA biogenesis. Next, I examined the molecular functions of high-confidence individual hits in the ribosome biogenesis pathway. I discovered that NOL7 is the likely ortholog of yeast Bud21 and is required for early pre-ribosomal RNA stability. I showed that large subunit biogenesis factors, RSL24D1 and the PeBoW (PES1-BOP1-WDR12) complex, interact with and regulate RNA polymerase I levels. Finally, I studied the cytidine deaminase, APOBEC3A's, function in large ribosomal subunit biogenesis. In doing so, I reveal for the first time the possibility that the pre-ribosomal RNA can be edited by this enzyme during its maturation. These results underscore the nuances of human ribosome biogenesis regulation and push forward our understanding of this essential process with implications in treatment of disease, primarily cancer.
■590 ▼aSchool code: 0265.
■650 4▼aBiochemistry.
■650 4▼aMolecular biology.
■650 4▼aCellular biology.
■653 ▼aRibosome
■653 ▼aProtein synthesizing machinery
■653 ▼aRibosome biogenesis
■653 ▼aRibosomopathies
■653 ▼aPre-ribosomal RNA
■653 ▼aCancer
■690 ▼a0487
■690 ▼a0307
■690 ▼a0379
■71020▼aYale University▼bMolecular Biophysics and Biochemistry.
■7730 ▼tDissertations Abstracts International▼g85-01B.
■773 ▼tDissertation Abstract International
■790 ▼a0265
■791 ▼aPh.D.
■792 ▼a2023
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16931885▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
■980 ▼a202402▼f2024
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