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Genetic Causes of Amyloid Fibrils and Their Structures- [electronic resource]
Genetic Causes of Amyloid Fibrils and Their Structures - [electronic resource]
Genetic Causes of Amyloid Fibrils and Their Structures- [electronic resource]

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자료유형  
 학위논문파일 국외
최종처리일시  
20240214101246
ISBN  
9798379740948
DDC  
574
저자명  
Rosenberg, Gregory Marc.
서명/저자  
Genetic Causes of Amyloid Fibrils and Their Structures - [electronic resource]
발행사항  
[S.l.]: : University of California, Los Angeles., 2023
발행사항  
Ann Arbor : : ProQuest Dissertations & Theses,, 2023
형태사항  
1 online resource(259 p.)
주기사항  
Source: Dissertations Abstracts International, Volume: 84-12, Section: B.
주기사항  
Includes supplementary digital materials.
주기사항  
Advisor: Eisenberg, David S.
학위논문주기  
Thesis (Ph.D.)--University of California, Los Angeles, 2023.
사용제한주기  
This item must not be sold to any third party vendors.
초록/해제  
요약The conversion of human proteins into the highly ordered fibrillar aggregates known as amyloid fibrils is implicated in a wide range of diseases. The number of proteins known to exhibit this activity is constantly growing and the molecular mechanisms that lead to amyloid aggregation are not fully understood. I focus on genetic mutations as a mechanism by which to predict novel amyloidogenic proteins. I also examine how mutations can explain some structural features of amyloid fibrils formed by mutant proteins. I developed a computational method for predicting previously unknown amyloidogenic proteins by calculating the propensity of disease mutations to induce amyloid aggregation. This method, called Identification of Mutations Promoting Amyloidogenic Transitions (IMPAcT), identified protein TFG as a novel amyloidogenic protein. I biochemically validated the amyloidogenic nature of mutant protein TFG and determined the structures of the mutant amyloid fibrils, demonstrating the direct and indirect influence of each mutation on the structure and stability of the fibrils. Lastly, I composed a literature review of the mechanisms by which mutations drive the conversion to an amyloid fibril and influence the resulting molecular structures. This body of research expands our understanding of amyloid proteins and opens avenues for further study of the relationship between genetics and amyloids.This dissertation includes three supplementary files.Chapter 2 has two supplementary spreadsheets: Table S2-1 is a spreadsheet containing information regarding all the candidate mutations identified by the IMPAcT method; Table S2-2 is a spreadsheet containing the results of a statistical test on patterns in the kinds of mutations which were predicted to be amyloidogenic by the IMPAcT method.Chapter 4 has one supplementary spreadsheet: Table S4-1 is a spreadsheet containing relevant information on all pathogenic amyloid proteins considered in the review.
일반주제명  
Biochemistry.
일반주제명  
Genetics.
일반주제명  
Molecular biology.
키워드  
Amyloid
키워드  
Amyloidosis
키워드  
Cryo-electron microscopy
키워드  
Low-complexity domain
키워드  
Mutation
키워드  
Structure
기타저자  
University of California, Los Angeles Human Genetics 0994
기본자료저록  
Dissertations Abstracts International. 84-12B.
기본자료저록  
Dissertation Abstract International
전자적 위치 및 접속  
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MARC

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■035    ▼a(MiAaPQ)AAI30529194
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a574
■1001  ▼aRosenberg,  Gregory  Marc.
■24510▼aGenetic  Causes  of  Amyloid  Fibrils  and  Their  Structures▼h[electronic  resource]
■260    ▼a[S.l.]:▼bUniversity  of  California,  Los  Angeles.  ▼c2023
■260  1▼aAnn  Arbor  :▼bProQuest  Dissertations  &  Theses,  ▼c2023
■300    ▼a1  online  resource(259  p.)
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  84-12,  Section:  B.
■500    ▼aIncludes  supplementary  digital  materials.
■500    ▼aAdvisor:  Eisenberg,  David  S.
■5021  ▼aThesis  (Ph.D.)--University  of  California,  Los  Angeles,  2023.
■506    ▼aThis  item  must  not  be  sold  to  any  third  party  vendors.
■520    ▼aThe  conversion  of  human  proteins  into  the  highly  ordered  fibrillar  aggregates  known  as  amyloid  fibrils  is  implicated  in  a  wide  range  of  diseases.  The  number  of  proteins  known  to  exhibit  this  activity  is  constantly  growing  and  the  molecular  mechanisms  that  lead  to  amyloid  aggregation  are  not  fully  understood.  I  focus  on  genetic  mutations  as  a  mechanism  by  which  to  predict  novel  amyloidogenic  proteins.  I  also  examine  how  mutations  can  explain  some  structural  features  of  amyloid  fibrils  formed  by  mutant  proteins.  I  developed  a  computational  method  for  predicting  previously  unknown  amyloidogenic  proteins  by  calculating  the  propensity  of  disease  mutations  to  induce  amyloid  aggregation.  This  method,  called  Identification  of  Mutations  Promoting  Amyloidogenic  Transitions  (IMPAcT),  identified  protein  TFG  as  a  novel  amyloidogenic  protein.  I  biochemically  validated  the  amyloidogenic  nature  of  mutant  protein  TFG  and  determined  the  structures  of  the  mutant  amyloid  fibrils,  demonstrating  the  direct  and  indirect  influence  of  each  mutation  on  the  structure  and  stability  of  the  fibrils.  Lastly,  I  composed  a  literature  review  of  the  mechanisms  by  which  mutations  drive  the  conversion  to  an  amyloid  fibril  and  influence  the  resulting  molecular  structures.  This  body  of  research  expands  our  understanding  of  amyloid  proteins  and  opens  avenues  for  further  study  of  the  relationship  between  genetics  and  amyloids.This  dissertation  includes  three  supplementary  files.Chapter  2  has  two  supplementary  spreadsheets:  Table  S2-1  is  a  spreadsheet  containing  information  regarding  all  the  candidate  mutations  identified  by  the  IMPAcT  method;  Table  S2-2  is  a  spreadsheet  containing  the  results  of  a  statistical  test  on  patterns  in  the  kinds  of  mutations  which  were  predicted  to  be  amyloidogenic  by  the  IMPAcT  method.Chapter  4  has  one  supplementary  spreadsheet:  Table  S4-1  is  a  spreadsheet  containing  relevant  information  on  all  pathogenic  amyloid  proteins  considered  in  the  review.
■590    ▼aSchool  code:  0031.
■650  4▼aBiochemistry.
■650  4▼aGenetics.
■650  4▼aMolecular  biology.
■653    ▼aAmyloid
■653    ▼aAmyloidosis
■653    ▼aCryo-electron  microscopy
■653    ▼aLow-complexity  domain
■653    ▼aMutation
■653    ▼aStructure
■690    ▼a0487
■690    ▼a0369
■690    ▼a0307
■71020▼aUniversity  of  California,  Los  Angeles▼bHuman  Genetics  0994.
■7730  ▼tDissertations  Abstracts  International▼g84-12B.
■773    ▼tDissertation  Abstract  International
■790    ▼a0031
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16933434▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.
■980    ▼a202402▼f2024

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