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Novel Protein Regulators of Human Ribosome Biogenesis- [electronic resource]
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
저자명  
McCool, Mason Alexander.
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  
Protein synthesizing machinery
키워드  
Ribosome biogenesis
키워드  
Ribosomopathies
키워드  
Pre-ribosomal RNA
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.

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■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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