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Transcriptional and Post-Transcriptional Regulation of the Heat Shock Response
Transcriptional and Post-Transcriptional Regulation of the Heat Shock Response
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105614
- ISBN
- 9798265427069
- DDC
- 612
- 서명/저자
- Transcriptional and Post-Transcriptional Regulation of the Heat Shock Response
- 발행사항
- [Sl] : Stanford University, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 130 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
- 주기사항
- Advisor: Brandman, Onn.
- 학위논문주기
- Thesis (Ph.D.)--Stanford University, 2025.
- 초록/해제
- 요약The heat shock response (HSR) is an adaptive gene expression program that controls the expression of molecular chaperones in the cell, driven by the activity of the conserved transcription factor Hsf1. The HSR is activated during stress conditions, such as elevated temperatures, nutrient deprivation, presence of proteotoxic drugs, and other stressors. Such stress conditions also lead to the formation of membrane-less biomolecular condensates that contain mRNA, such as stress granules or RNA condensates. However, the regulatory mechanisms that modulate transcriptional activation of the HSR and the role of these stress-induced RNA condensates in cell survival during stress remain poorly understood. In this dissertation, I describe my contributions to the development of a novel RNA-based screening technology, called ReporterSeq. ReporterSeq allows for quantitative measurements of transcriptional activity of a synthetic reporter responsive to Hsf1 combined with genetic perturbations via CRISPR interference. By dissecting a diverse set of stress conditions using ReporterSeq, I identified context-specific transcriptional regulators of the HSR. Additionally, I addressed post-transcriptional modulators of the HSR by investigating the transcriptome composition of RNA condensates and observing an escape from stress-induced transcripts from association to such condensates. I expanded on the ReporterSeq technology to develop FRep-Seq (Fractionation of ReporterSeq) to dissect genome-wide post-transcriptional modulators of transcript condensation during stress. Through FRep-Seq, I identified that the nucleoporin protein, Nup42, is required for promoting the escape of Hsf1-induced transcripts from associating into condensates and facilitating their export to the cytosol. In summary, the work in this dissertation addresses regulators of transcriptional activators of Hsf1, and how the Hsf1-driven transcripts can sustain chaperone protein production to ensure cellular survival and fitness.
- 일반주제명
- Physiology
- 일반주제명
- RNA polymerase
- 일반주제명
- Homeostasis
- 일반주제명
- Endoplasmic reticulum
- 일반주제명
- Protein folding
- 일반주제명
- Ribonucleic acid--RNA
- 일반주제명
- Chromosomes
- 일반주제명
- Insects
- 일반주제명
- Heat
- 일반주제명
- Genomes
- 일반주제명
- Phosphorylation
- 일반주제명
- Yeast
- 일반주제명
- Genes
- 일반주제명
- Heat shock proteins
- 일반주제명
- Exocrine glands
- 일반주제명
- Ethanol
- 일반주제명
- Transcription factors
- 일반주제명
- Oxidative stress
- 일반주제명
- Biochemistry
- 일반주제명
- Cellular biology
- 일반주제명
- Genetics
- 기타저자
- Stanford University.
- 기본자료저록
- Dissertations Abstracts International. 87-05B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■040 ▼aMiAaPQ▼cMiAaPQ
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■1001 ▼aTsuchida, Eduardo Tassoni.
■24510▼aTranscriptional and Post-Transcriptional Regulation of the Heat Shock Response
■260 ▼a[Sl]▼bStanford University▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a130 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-05, Section: B.
■500 ▼aAdvisor: Brandman, Onn.
■5021 ▼aThesis (Ph.D.)--Stanford University, 2025.
■520 ▼aThe heat shock response (HSR) is an adaptive gene expression program that controls the expression of molecular chaperones in the cell, driven by the activity of the conserved transcription factor Hsf1. The HSR is activated during stress conditions, such as elevated temperatures, nutrient deprivation, presence of proteotoxic drugs, and other stressors. Such stress conditions also lead to the formation of membrane-less biomolecular condensates that contain mRNA, such as stress granules or RNA condensates. However, the regulatory mechanisms that modulate transcriptional activation of the HSR and the role of these stress-induced RNA condensates in cell survival during stress remain poorly understood. In this dissertation, I describe my contributions to the development of a novel RNA-based screening technology, called ReporterSeq. ReporterSeq allows for quantitative measurements of transcriptional activity of a synthetic reporter responsive to Hsf1 combined with genetic perturbations via CRISPR interference. By dissecting a diverse set of stress conditions using ReporterSeq, I identified context-specific transcriptional regulators of the HSR. Additionally, I addressed post-transcriptional modulators of the HSR by investigating the transcriptome composition of RNA condensates and observing an escape from stress-induced transcripts from association to such condensates. I expanded on the ReporterSeq technology to develop FRep-Seq (Fractionation of ReporterSeq) to dissect genome-wide post-transcriptional modulators of transcript condensation during stress. Through FRep-Seq, I identified that the nucleoporin protein, Nup42, is required for promoting the escape of Hsf1-induced transcripts from associating into condensates and facilitating their export to the cytosol. In summary, the work in this dissertation addresses regulators of transcriptional activators of Hsf1, and how the Hsf1-driven transcripts can sustain chaperone protein production to ensure cellular survival and fitness.
■590 ▼aSchool code: 0212.
■650 4▼aPhysiology
■650 4▼aRNA polymerase
■650 4▼aHomeostasis
■650 4▼aEndoplasmic reticulum
■650 4▼aProtein folding
■650 4▼aRibonucleic acid--RNA
■650 4▼aChromosomes
■650 4▼aInsects
■650 4▼aHeat
■650 4▼aGenomes
■650 4▼aPhosphorylation
■650 4▼aYeast
■650 4▼aGenes
■650 4▼aHeat shock proteins
■650 4▼aExocrine glands
■650 4▼aEthanol
■650 4▼aTranscription factors
■650 4▼aOxidative stress
■650 4▼aBiochemistry
■650 4▼aCellular biology
■650 4▼aGenetics
■690 ▼a0719
■690 ▼a0487
■690 ▼a0379
■690 ▼a0369
■71020▼aStanford University.
■7730 ▼tDissertations Abstracts International▼g87-05B.
■790 ▼a0212
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360750▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


