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Widespread Capacity for Conformational Memory in the Human Proteome
Widespread Capacity for Conformational Memory in the Human Proteome
Widespread Capacity for Conformational Memory in the Human Proteome

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20260202104856
ISBN  
9798288816697
DDC  
616.99419
저자명  
Lozanoski, Thomas Michael.
서명/저자  
Widespread Capacity for Conformational Memory in the Human Proteome
발행사항  
[Sl] : Stanford University, 2023
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2023
형태사항  
94 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-02, Section: B.
주기사항  
Advisor: Jarosz, Daniel.
학위논문주기  
Thesis (Ph.D.)--Stanford University, 2023.
초록/해제  
요약Biomolecular condensation is a fundamental principle of cellular organization. In extreme cases, this collective behavior can store and transmit information, driving cellular memory with prion-like qualities. Although multiple examples have been identified in microbes, this behavior is assumed to be rare in metazoans. By coupling changes in protein stability to cellular fitness, we generated a quantitative atlas of self-assembly across the human proteome. Spanning multiple orders of magnitude, these measurements reveal that at least one-quarter of human proteins have the capacity to self-assemble; nearly three-quarters of these can persist over many cell divisions. This conformational memory was strongly enriched among proteins involved in key developmental decisions, stress responses, and aging. When purified in vitro these proteins formed assemblies that could autonomously replicate. Yet most did not form amyloid and were not overtly toxic. Moreover, the protein domains necessary for these behaviors often did not resemble those in classical prions. Examining a large library of human genetic variants, we find that disease-associated mutations commonly perturb conformational memory. Our results suggest that the capacity to store and transmit information is ubiquitous in the human proteome and that its dysfunction is a central feature of aging and disease.
일반주제명  
Leukemia
일반주제명  
Bioinformatics
일반주제명  
Disease
일반주제명  
Biochemistry
일반주제명  
Mutation
일반주제명  
DNA damage
일반주제명  
Oncology
일반주제명  
Metabolism
일반주제명  
Epigenetics
일반주제명  
Genomics
일반주제명  
Cell cycle
일반주제명  
Breast cancer
일반주제명  
Cancer research
일반주제명  
Bioengineering
일반주제명  
Medical research
일반주제명  
Chromosomes
일반주제명  
Tumors
기타저자  
Stanford University.
기본자료저록  
Dissertations Abstracts International. 87-02B.
전자적 위치 및 접속  
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MARC

 008260126s2023        us                              c    eng  d
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■020    ▼a9798288816697
■035    ▼a(MiAaPQ)AAI32201017
■035    ▼a(MiAaPQ)Stanfordwx309rq3304
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a616.99419
■1001  ▼aLozanoski,  Thomas  Michael.
■24510▼aWidespread  Capacity  for  Conformational  Memory  in  the  Human  Proteome
■260    ▼a[Sl]▼bStanford  University▼c2023
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2023
■300    ▼a94  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-02,  Section:  B.
■500    ▼aAdvisor:  Jarosz,  Daniel.
■5021  ▼aThesis  (Ph.D.)--Stanford  University,  2023.
■520    ▼aBiomolecular  condensation  is  a  fundamental  principle  of  cellular  organization.  In  extreme  cases,  this  collective  behavior  can  store  and  transmit  information,  driving  cellular  memory  with  prion-like  qualities.  Although  multiple  examples  have  been  identified  in  microbes,  this  behavior  is  assumed  to  be  rare  in  metazoans.  By  coupling  changes  in  protein  stability  to  cellular  fitness,  we  generated  a  quantitative  atlas  of  self-assembly  across  the  human  proteome.  Spanning  multiple  orders  of  magnitude,  these  measurements  reveal  that  at  least  one-quarter  of  human  proteins  have  the  capacity  to  self-assemble;  nearly  three-quarters  of  these  can  persist  over  many  cell  divisions.  This  conformational  memory  was  strongly  enriched  among  proteins  involved  in  key  developmental  decisions,  stress  responses,  and  aging.  When  purified  in  vitro  these  proteins  formed  assemblies  that  could  autonomously  replicate.  Yet  most  did  not  form  amyloid  and  were  not  overtly  toxic.  Moreover,  the  protein  domains  necessary  for  these  behaviors  often  did  not  resemble  those  in  classical  prions.  Examining  a  large  library  of  human  genetic  variants,  we  find  that  disease-associated  mutations  commonly  perturb  conformational  memory.  Our  results  suggest  that  the  capacity  to  store  and  transmit  information  is  ubiquitous  in  the  human  proteome  and  that  its  dysfunction  is  a  central  feature  of  aging  and  disease.
■590    ▼aSchool  code:  0212.
■650  4▼aLeukemia
■650  4▼aBioinformatics
■650  4▼aDisease
■650  4▼aBiochemistry
■650  4▼aMutation
■650  4▼aDNA  damage
■650  4▼aOncology
■650  4▼aMetabolism
■650  4▼aEpigenetics
■650  4▼aGenomics
■650  4▼aCell  cycle
■650  4▼aBreast  cancer
■650  4▼aCancer  research
■650  4▼aBioengineering
■650  4▼aMedical  research
■650  4▼aChromosomes
■650  4▼aTumors
■690    ▼a0202
■690    ▼a0487
■690    ▼a0992
■690    ▼a0715
■71020▼aStanford  University.
■7730  ▼tDissertations  Abstracts  International▼g87-02B.
■790    ▼a0212
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359256▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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