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Investigating the Sequence Requirements for Specific Ligand Recognition in Variant Riboswitches
Investigating the Sequence Requirements for Specific Ligand Recognition in Variant Riboswi...
Investigating the Sequence Requirements for Specific Ligand Recognition in Variant Riboswitches

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20250211150924
ISBN  
9798383482230
DDC  
574
저자명  
Barth, Kathryn Marie.
서명/저자  
Investigating the Sequence Requirements for Specific Ligand Recognition in Variant Riboswitches
발행사항  
[Sl] : Yale University, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
167 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-01, Section: B.
주기사항  
Advisor: Strobel, Scott A.
학위논문주기  
Thesis (Ph.D.)--Yale University, 2024.
초록/해제  
요약Recognizing and responding to environmental stimuli is essential for organisms across all domains of life. Riboswitches sense environmental stimuli in the form of a small molecule ligand and then structurally rearrange to modulate gene expression in response. Specific ligand recognition is, therefore, a requirement of a functional riboswitch. This dissertation focuses on relating the primary sequence of a riboswitch to a role in ligand specificity. Unlike structural studies, which are used to identify nucleotides in direct ligand contact, I have taken a mutational approach to determine which nucleotides, when mutated, alter riboswitch function or ligand specificity. I focus on variant riboswitches where a small number of sequence changes can change the ligand specificity. I seek to understand how specificity is achieved in closely related variant systems. Peripheral nucleotides and the expression platform both impact ligand specificity in variant riboswitches as well as nucleotides that directly interact with the ligand. In addition to informing on the sequence requirements for specific ligand interaction, this investigation has led to the discovery of a new ykkC variant class as well as the development of potential synthetic pyrimidine-containing cyclic dinucleotide riboswitches.
일반주제명  
Biochemistry
키워드  
Riboswitch
키워드  
Specificity
키워드  
Variants
기타저자  
Yale University Molecular Biophysics and Biochemistry
기본자료저록  
Dissertations Abstracts International. 86-01B.
전자적 위치 및 접속  
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■0820  ▼a574
■1001  ▼aBarth,  Kathryn  Marie.
■24510▼aInvestigating  the  Sequence  Requirements  for  Specific  Ligand  Recognition  in  Variant  Riboswitches
■260    ▼a[Sl]▼bYale  University▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a167  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-01,  Section:  B.
■500    ▼aAdvisor:  Strobel,  Scott  A.
■5021  ▼aThesis  (Ph.D.)--Yale  University,  2024.
■520    ▼aRecognizing  and  responding  to  environmental  stimuli  is  essential  for  organisms  across  all  domains  of  life.  Riboswitches  sense  environmental  stimuli  in  the  form  of  a  small  molecule  ligand  and  then  structurally  rearrange  to  modulate  gene  expression  in  response.  Specific  ligand  recognition  is,  therefore,  a  requirement  of  a  functional  riboswitch.  This  dissertation  focuses  on  relating  the  primary  sequence  of  a  riboswitch  to  a  role  in  ligand  specificity.  Unlike  structural  studies,  which  are  used  to  identify  nucleotides  in  direct  ligand  contact,  I  have  taken  a  mutational  approach  to  determine  which  nucleotides,  when  mutated,  alter  riboswitch  function  or  ligand  specificity.  I  focus  on  variant  riboswitches  where  a  small  number  of  sequence  changes  can  change  the  ligand  specificity.  I  seek  to  understand  how  specificity  is  achieved  in  closely  related  variant  systems.  Peripheral  nucleotides  and  the  expression  platform  both  impact  ligand  specificity  in  variant  riboswitches  as  well  as  nucleotides  that  directly  interact  with  the  ligand.  In  addition  to  informing  on  the  sequence  requirements  for  specific  ligand  interaction,  this  investigation  has  led  to  the  discovery  of  a  new  ykkC  variant  class  as  well  as  the  development  of  potential  synthetic  pyrimidine-containing  cyclic  dinucleotide  riboswitches.
■590    ▼aSchool  code:  0265.
■650  4▼aBiochemistry
■653    ▼aRiboswitch
■653    ▼aSpecificity
■653    ▼aVariants
■690    ▼a0487
■71020▼aYale  University▼bMolecular  Biophysics  and  Biochemistry.
■7730  ▼tDissertations  Abstracts  International▼g86-01B.
■790    ▼a0265
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17160167▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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