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Modeling Dynamics and Conformational Ensembles of Biological Macromolecules With Time-Resolved X-Ray Scattering and Molecular Simulations
Modeling Dynamics and Conformational Ensembles of Biological Macromolecules With Time-Resolved X-Ray Scattering and Molecular Simulations
Detailed Information
- Material Type
- 단행본
- 0017356836
- Date and Time of Latest Transaction
- 20260202103045
- ISBN
- 9798315799191
- DDC
- 540
- Author
- Nijhawan, Adam Kumar.
- Title/Author
- Modeling Dynamics and Conformational Ensembles of Biological Macromolecules With Time-Resolved X-Ray Scattering and Molecular Simulations
- Publish Info
- [Sl] : Northwestern University, 2025
- Publish Info
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- Material Info
- 310 p
- General Note
- Source: Dissertations Abstracts International, Volume: 86-12, Section: B.
- General Note
- Advisor: Chen, Lin X.;Kohlstedt, Kevin L.
- 학위논문주기
- Thesis (Ph.D.)--Northwestern University, 2025.
- Abstracts/Etc
- 요약The functionality of biomacromolecules (BMMs), such as proteins and nucleic acids, is intrinsically tied to their three-dimensional structures, which are dictated by a one- dimensional sequence of amino acids or nucleotides. Although the intrinsic forces driving this folding process have been well studied, our understanding of how environmental factors, such as pH and temperature, influence structure formation and dynamics remains incomplete.This work employs time-resolved X-ray solution scattering (TRXSS) and molecular simulations to provide insight into the structural dynamics and conformational ensembles following changes in temperature or pH. Chapter 1 provides an introduction to the importance of studying the structural dynamics of BMMs and the challenges present in extracting atomic-level information from ensemble-averaged measurements. Chapter 2 details the experimental and computational methodologies used in this work. Chapter 3 illustrates how the computational and experimental techniques discussed in Chapter 2 can be combined to study the response of BMMs to various environmental perturbations. Chapter 4 highlights how TRXSS results can bias molecular simulations to sample physically relevant structures. Chapter 5 showcases how enhanced sampling simulations can be coupled with a genetic algorithm to determine a heterogeneous set of conformations along unfolding pathways. Chapter 6 compares the dynamics and ensembles of Markov state models with TRXSS results. Chapter 7 introduces a merocyanine photoacid for TRXSS experiments that was used to induce the dissociation of double-stranded DNA into noncanonical structures. Finally, Chapter 8 provides a methodology for Multicanonical Monte Carlo Ensemble Growth that efficiently computes equilibrium thermodynamic properties for proteins. This work demonstrates how TRXSS and molecular simulations can be combined, underscoring the ideal applications for each use.
- Subject Added Entry-Topical Term
- Chemistry
- Subject Added Entry-Topical Term
- Physical chemistry
- Subject Added Entry-Topical Term
- Computational chemistry
- Subject Added Entry-Topical Term
- Biochemistry
- Subject Added Entry-Topical Term
- Genetics
- Index Term-Uncontrolled
- Conformational ensembles
- Index Term-Uncontrolled
- Molecular dynamics
- Index Term-Uncontrolled
- Structural dynamics
- Index Term-Uncontrolled
- TRXSS
- Index Term-Uncontrolled
- Nucleotides
- Added Entry-Corporate Name
- Northwestern University Chemistry
- Host Item Entry
- Dissertations Abstracts International. 86-12B.
- Electronic Location and Access
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798315799191
■035 ▼a(MiAaPQ)AAI31930790
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a540
■1001 ▼aNijhawan, Adam Kumar.▼0(orcid)0000-0001-5527-1850
■24510▼aModeling Dynamics and Conformational Ensembles of Biological Macromolecules With Time-Resolved X-Ray Scattering and Molecular Simulations
■260 ▼a[Sl]▼bNorthwestern University▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a310 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-12, Section: B.
■500 ▼aAdvisor: Chen, Lin X.;Kohlstedt, Kevin L.
■5021 ▼aThesis (Ph.D.)--Northwestern University, 2025.
■520 ▼aThe functionality of biomacromolecules (BMMs), such as proteins and nucleic acids, is intrinsically tied to their three-dimensional structures, which are dictated by a one- dimensional sequence of amino acids or nucleotides. Although the intrinsic forces driving this folding process have been well studied, our understanding of how environmental factors, such as pH and temperature, influence structure formation and dynamics remains incomplete.This work employs time-resolved X-ray solution scattering (TRXSS) and molecular simulations to provide insight into the structural dynamics and conformational ensembles following changes in temperature or pH. Chapter 1 provides an introduction to the importance of studying the structural dynamics of BMMs and the challenges present in extracting atomic-level information from ensemble-averaged measurements. Chapter 2 details the experimental and computational methodologies used in this work. Chapter 3 illustrates how the computational and experimental techniques discussed in Chapter 2 can be combined to study the response of BMMs to various environmental perturbations. Chapter 4 highlights how TRXSS results can bias molecular simulations to sample physically relevant structures. Chapter 5 showcases how enhanced sampling simulations can be coupled with a genetic algorithm to determine a heterogeneous set of conformations along unfolding pathways. Chapter 6 compares the dynamics and ensembles of Markov state models with TRXSS results. Chapter 7 introduces a merocyanine photoacid for TRXSS experiments that was used to induce the dissociation of double-stranded DNA into noncanonical structures. Finally, Chapter 8 provides a methodology for Multicanonical Monte Carlo Ensemble Growth that efficiently computes equilibrium thermodynamic properties for proteins. This work demonstrates how TRXSS and molecular simulations can be combined, underscoring the ideal applications for each use.
■590 ▼aSchool code: 0163.
■650 4▼aChemistry
■650 4▼aPhysical chemistry
■650 4▼aComputational chemistry
■650 4▼aBiochemistry
■650 4▼aGenetics
■653 ▼aConformational ensembles
■653 ▼aMolecular dynamics
■653 ▼aStructural dynamics
■653 ▼aTRXSS
■653 ▼aNucleotides
■690 ▼a0485
■690 ▼a0494
■690 ▼a0219
■690 ▼a0487
■690 ▼a0369
■71020▼aNorthwestern University▼bChemistry.
■7730 ▼tDissertations Abstracts International▼g86-12B.
■790 ▼a0163
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17356836▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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