본문

서브메뉴

Structural and Dynamic Proximal Proteomic Analysis of TRPV2 Ion Channel Activation
Structural and Dynamic Proximal Proteomic Analysis of TRPV2 Ion Channel Activation
Structural and Dynamic Proximal Proteomic Analysis of TRPV2 Ion Channel Activation

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20250211151140
ISBN  
9798382830926
DDC  
574
저자명  
Gallo, Pamela N.
서명/저자  
Structural and Dynamic Proximal Proteomic Analysis of TRPV2 Ion Channel Activation
발행사항  
[Sl] : University of Pennsylvania, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
151 p
주기사항  
Source: Dissertations Abstracts International, Volume: 85-12, Section: B.
주기사항  
Advisor: Moiseenkova-Bell, Vera Y.;Lakadamyali, Melike.
학위논문주기  
Thesis (Ph.D.)--University of Pennsylvania, 2024.
초록/해제  
요약Calcium signaling is a robust, tightly regulated pathway which mediates every vital cellular function through the propagation of localized calcium flux. Transient receptor potential vanilloid type 2 (TRPV2) ion channels are calcium-permeable, tetrameric ion channels with implications in several cellular processes such as immune response, neuronal development, and multiple cancers. Despite the impact of TRPV2 on varying physiologies, there is still much to be resolved about the ion channel. One key aspect of understanding the channel's function is to establish a structural basis for TRPV2 pharmacological channel opening. To investigate the functional mechanism for TRPV2 channel opening, cryogenic-electron microscopy (cryoEM) was used to determine the structures of TRPV2 upon pharmacological activation. Using this cutting-edge structural technique, we were able to elucidate high resolution structures of TRPV2 bound to the pharmacological activators 2-APB and CBD, where we found key residues for drug binding around the flexible S4-S5 linker region. A conserved mechanism for channel opening was also established. In addition to channel opening mechanisms, another vital aspect in channel function is to identify TRPV2's protein effectors and impacted signaling pathways. To achieve this, we sought to identify TRPV2's dynamic proximal interactome by employing the catalytically active peroxidase, APEX, to tag proteins proximal to TRPV2. By comparing the protein networks found in the unstimulated state to the pharmacologically activated states of TRPV2, we identified several protein effectors, including the calcium signaling molecules calmodulin and protein kinase C-. Novel functional links between TRPV2 calcium flux and the cell adhesion molecules neural cell adhesion molecule (NCAM) and L1 cell adhesion molecule were established in a neuronal context. Combined, we determined a structural basis for TRPV2 channel opening and established known calcium signaling and novel effector cell adhesion molecules from TRPV2's dynamic proximity proteome. These studies lay the groundwork for rational drug design and for future cellular studies connecting TRPV2 to cell adhesion.
일반주제명  
Biochemistry
일반주제명  
Cellular biology
일반주제명  
Neurosciences
일반주제명  
Oncology
일반주제명  
Developmental biology
키워드  
Calcium signaling
키워드  
Neurite outgrowth
키워드  
Proteomics
키워드  
Neuronal development
키워드  
Cell adhesion molecules
기타저자  
University of Pennsylvania Biochemistry and Molecular Biophysics
기본자료저록  
Dissertations Abstracts International. 85-12B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

 008250123s2024        us                              c    eng  d
■001000017160950
■00520250211151140
■006m          o    d                
■007cr#unu||||||||
■020    ▼a9798382830926
■035    ▼a(MiAaPQ)AAI31149320
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a574
■1001  ▼aGallo,  Pamela  N.
■24510▼aStructural  and  Dynamic  Proximal  Proteomic  Analysis  of  TRPV2  Ion  Channel  Activation
■260    ▼a[Sl]▼bUniversity  of  Pennsylvania▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a151  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-12,  Section:  B.
■500    ▼aAdvisor:  Moiseenkova-Bell,  Vera  Y.;Lakadamyali,  Melike.
■5021  ▼aThesis  (Ph.D.)--University  of  Pennsylvania,  2024.
■520    ▼aCalcium  signaling  is  a  robust,  tightly  regulated  pathway  which  mediates  every  vital  cellular  function  through  the  propagation  of  localized  calcium  flux.  Transient  receptor  potential  vanilloid  type  2  (TRPV2)  ion  channels  are  calcium-permeable,  tetrameric  ion  channels  with  implications  in  several  cellular  processes  such  as  immune  response,  neuronal  development,  and  multiple  cancers.  Despite  the  impact  of  TRPV2  on  varying  physiologies,  there  is  still  much  to  be  resolved  about  the  ion  channel.  One  key  aspect  of  understanding  the  channel's  function  is  to  establish  a  structural  basis  for  TRPV2  pharmacological  channel  opening.  To  investigate  the  functional  mechanism  for  TRPV2  channel  opening,  cryogenic-electron  microscopy  (cryoEM)  was  used  to  determine  the  structures  of  TRPV2  upon  pharmacological  activation.  Using  this  cutting-edge  structural  technique,  we  were  able  to  elucidate  high  resolution  structures  of  TRPV2  bound  to  the  pharmacological  activators  2-APB  and  CBD,  where  we  found  key  residues  for  drug  binding  around  the  flexible  S4-S5  linker  region.  A  conserved  mechanism  for  channel  opening  was  also  established.  In  addition  to  channel  opening  mechanisms,  another  vital  aspect  in  channel  function  is  to  identify  TRPV2's  protein  effectors  and  impacted  signaling  pathways.  To  achieve  this,  we  sought  to  identify  TRPV2's  dynamic  proximal  interactome  by  employing  the  catalytically  active  peroxidase,  APEX,  to  tag  proteins  proximal  to  TRPV2.  By  comparing  the  protein  networks  found  in  the  unstimulated  state  to  the  pharmacologically  activated  states  of  TRPV2,  we  identified  several  protein  effectors,  including  the  calcium  signaling  molecules  calmodulin  and  protein  kinase  C-.  Novel  functional  links  between  TRPV2  calcium  flux  and  the  cell  adhesion  molecules  neural  cell  adhesion  molecule  (NCAM)  and  L1  cell  adhesion  molecule  were  established  in  a  neuronal  context.  Combined,  we  determined  a  structural  basis  for  TRPV2  channel  opening  and  established  known  calcium  signaling  and  novel  effector  cell  adhesion  molecules  from  TRPV2's  dynamic  proximity  proteome.  These  studies  lay  the  groundwork  for  rational  drug  design  and  for  future  cellular  studies  connecting  TRPV2  to  cell  adhesion.
■590    ▼aSchool  code:  0175.
■650  4▼aBiochemistry
■650  4▼aCellular  biology
■650  4▼aNeurosciences
■650  4▼aOncology
■650  4▼aDevelopmental  biology
■653    ▼aCalcium  signaling
■653    ▼aNeurite  outgrowth
■653    ▼aProteomics
■653    ▼aNeuronal  development
■653    ▼aCell  adhesion  molecules
■690    ▼a0487
■690    ▼a0379
■690    ▼a0992
■690    ▼a0317
■690    ▼a0758
■71020▼aUniversity  of  Pennsylvania▼bBiochemistry  and  Molecular  Biophysics.
■7730  ▼tDissertations  Abstracts  International▼g85-12B.
■790    ▼a0175
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17160950▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

미리보기

내보내기

chatGPT토론

Ai 추천 관련 도서


    신착도서 더보기
    최근 3년간 통계입니다.

    소장정보

    • 예약
    • 소재불명신고
    • 나의폴더
    • 우선정리요청
    • 비도서대출신청
    • 야간 도서대출신청
    소장자료
    등록번호 청구기호 소장처 대출가능여부 대출정보
    TF11028 전자도서 대출가능 마이폴더 부재도서신고 비도서대출신청 야간 도서대출신청

    * 대출중인 자료에 한하여 예약이 가능합니다. 예약을 원하시면 예약버튼을 클릭하십시오.

    해당 도서를 다른 이용자가 함께 대출한 도서

    관련 인기도서

    로그인 후 이용 가능합니다.