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Mechanistic Studies of Membrane Protein Biogenesis at the ER and Mitochondria
Mechanistic Studies of Membrane Protein Biogenesis at the ER and Mitochondria
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103134
- ISBN
- 9798311932523
- DDC
- 574
- 저자명
- Hazu, Masami.
- 서명/저자
- Mechanistic Studies of Membrane Protein Biogenesis at the ER and Mitochondria
- 발행사항
- [Sl] : California Institute of Technology, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 177 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-12, Section: B.
- 주기사항
- Advisor: Voorhees, Rebecca.
- 학위논문주기
- Thesis (Ph.D.)--California Institute of Technology, 2025.
- 초록/해제
- 요약Eukaryotic cells are organized into membrane-enclosed compartments with elaborate networks of integral membrane proteins. From synthesis, localization, and insertion into designated cellular membranes, to proper folding and assembly of the membrane proteins, the successful biogenesis of membrane proteins is crucial for defining the organellar compartments and for overall proteostasis. Recent advances in the field of membrane protein biogenesis in both the endoplasmic reticulum (ER) and the mitochondria have identified novel machineries involved in the membrane insertion step. These are the ER membrane protein complex (EMC) at the ER and the mitochondrial carrier homolog 2 (MTCH2) at the outer mitochondrial membrane (OMM). In this thesis, we employ a combination of biochemical, cell biological, structural, and genetic techniques to explore in mechanistic detail the insertase function of the EMC and MTCH2 at the molecular level. In the first part of the thesis, our work on the EMC maps out the pathway of a tail-anchored (TA) protein through the insertase and revealed a selectivity filter that provides the biochemical basis for how the EMC protects compartment integrity. The selectivity filter of the EMC limits TA protein mislocalization and prevents topological errors of multi-pass membrane proteins. In the second part, ongoing work on MTCH2 reveals the absence of a prominent selectivity mechanism and provides insight into a regulatory mechanism of MTCH2, which seems to be conserved across metazoan MTCH2 homologs.
- 일반주제명
- Membranes
- 일반주제명
- Signal transduction
- 일반주제명
- Homeostasis
- 일반주제명
- Endoplasmic reticulum
- 일반주제명
- Protein folding
- 일반주제명
- Ribonucleic acid--RNA
- 일반주제명
- Biosynthesis
- 일반주제명
- Mitochondria
- 일반주제명
- Genomes
- 일반주제명
- Lipids
- 일반주제명
- Phosphorylation
- 일반주제명
- Yeast
- 일반주제명
- Apoptosis
- 일반주제명
- Cellular biology
- 일반주제명
- Biochemistry
- 기타저자
- California Institute of Technology Biology and Biological Engineering
- 기본자료저록
- Dissertations Abstracts International. 86-12B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202103134
■006m o d
■007cr#unu||||||||
■020 ▼a9798311932523
■035 ▼a(MiAaPQ)AAI31954655
■035 ▼a(MiAaPQ)Caltech16987
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a574
■1001 ▼aHazu, Masami.
■24510▼aMechanistic Studies of Membrane Protein Biogenesis at the ER and Mitochondria
■260 ▼a[Sl]▼bCalifornia Institute of Technology▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a177 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-12, Section: B.
■500 ▼aAdvisor: Voorhees, Rebecca.
■5021 ▼aThesis (Ph.D.)--California Institute of Technology, 2025.
■520 ▼aEukaryotic cells are organized into membrane-enclosed compartments with elaborate networks of integral membrane proteins. From synthesis, localization, and insertion into designated cellular membranes, to proper folding and assembly of the membrane proteins, the successful biogenesis of membrane proteins is crucial for defining the organellar compartments and for overall proteostasis. Recent advances in the field of membrane protein biogenesis in both the endoplasmic reticulum (ER) and the mitochondria have identified novel machineries involved in the membrane insertion step. These are the ER membrane protein complex (EMC) at the ER and the mitochondrial carrier homolog 2 (MTCH2) at the outer mitochondrial membrane (OMM). In this thesis, we employ a combination of biochemical, cell biological, structural, and genetic techniques to explore in mechanistic detail the insertase function of the EMC and MTCH2 at the molecular level. In the first part of the thesis, our work on the EMC maps out the pathway of a tail-anchored (TA) protein through the insertase and revealed a selectivity filter that provides the biochemical basis for how the EMC protects compartment integrity. The selectivity filter of the EMC limits TA protein mislocalization and prevents topological errors of multi-pass membrane proteins. In the second part, ongoing work on MTCH2 reveals the absence of a prominent selectivity mechanism and provides insight into a regulatory mechanism of MTCH2, which seems to be conserved across metazoan MTCH2 homologs.
■590 ▼aSchool code: 0037.
■650 4▼aMembranes
■650 4▼aSignal transduction
■650 4▼aHomeostasis
■650 4▼aEndoplasmic reticulum
■650 4▼aProtein folding
■650 4▼aRibonucleic acid--RNA
■650 4▼aBiosynthesis
■650 4▼aMitochondria
■650 4▼aGenomes
■650 4▼aLipids
■650 4▼aPhosphorylation
■650 4▼aYeast
■650 4▼aApoptosis
■650 4▼aCellular biology
■650 4▼aBiochemistry
■690 ▼a0379
■690 ▼a0487
■71020▼aCalifornia Institute of Technology▼bBiology and Biological Engineering.
■7730 ▼tDissertations Abstracts International▼g86-12B.
■790 ▼a0037
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357121▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


