본문

서브메뉴

Structural and Functional Studies of CNG Channels- [electronic resource]
Structural and Functional Studies of CNG Channels - [electronic resource]
Structural and Functional Studies of CNG Channels- [electronic resource]

상세정보

자료유형  
 학위논문파일 국외
최종처리일시  
20240214101659
ISBN  
9798380129862
DDC  
574
저자명  
Hu, Zhengshan.
서명/저자  
Structural and Functional Studies of CNG Channels - [electronic resource]
발행사항  
[S.l.]: : Columbia University., 2023
발행사항  
Ann Arbor : : ProQuest Dissertations & Theses,, 2023
형태사항  
1 online resource(235 p.)
주기사항  
Source: Dissertations Abstracts International, Volume: 85-02, Section: B.
주기사항  
Advisor: Yang, Jian.
학위논문주기  
Thesis (Ph.D.)--Columbia University, 2023.
사용제한주기  
This item must not be sold to any third party vendors.
초록/해제  
요약Ion channels are fundamental to the functioning of life, regulating processes as diverse as neural signaling, homeostasis, and environmental sensing, across the complexities of life from bacteria to the most advanced organisms. Among this vast diversity of ion channels, cyclic-nucleotide gated (CNG) channels hold particular significance and play a pivotal role in the sensory transduction across a variety of species. They transduce chemical signals into electrical signals, linking the external environment and our sensory perceptions.CNG channels were discovered almost 40 years ago and much knowledge has been gained on their physiological roles, biophysical properties, molecular characteristics, and channelopathies. However, the structural details of these channels remained elusive for a long time, mainly due to the lack of a full-length channel structure. It was only recently that atomic-resolution structures of full-length CNG channels became available, and structures of native mammalian CNG channels were only determined within the last two years.In my thesis, I use single particle cryogenic electron microscopy (cryo-EM) to determine the structures of native human cone CNGA3/CNGB3 channel in different biochemical environments and in different states, spanning the full spectrum of channel activation by its natural ligand cGMP. In addition, I use cryo-EM, electrophysiology, calcium imaging, and other biochemical techniques to characterize both wild-type and disease-associated mutant (DAM) CNG channels.Collectively, my thesis work contributes to a deeper understanding of the structural determinants of CNG channel properties, provides a detailed dissection of the CNG channel gating mechanism, demonstrates a potential CNG channel pathogenic mechanism, and calls for an interdisciplinary reevaluation of CNG channel DAMs.
일반주제명  
Biology.
일반주제명  
Biochemistry.
일반주제명  
Biophysics.
키워드  
Channelopathy
키워드  
Cryo-EM
키워드  
Ion channels
키워드  
Membrane protein
키워드  
Structural biology
기타저자  
Columbia University Biological Sciences
기본자료저록  
Dissertations Abstracts International. 85-02B.
기본자료저록  
Dissertation Abstract International
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

 008240612s2023      us  |||||||||||||||c||eng  d
■001000016934830
■00520240214101659
■006m          o    d                
■007cr#unu||||||||
■020    ▼a9798380129862
■035    ▼a(MiAaPQ)AAI30635501
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a574
■1001  ▼aHu,  Zhengshan.
■24510▼aStructural  and  Functional  Studies  of  CNG  Channels▼h[electronic  resource]
■260    ▼a[S.l.]:▼bColumbia  University.  ▼c2023
■260  1▼aAnn  Arbor  :▼bProQuest  Dissertations  &  Theses,  ▼c2023
■300    ▼a1  online  resource(235  p.)
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-02,  Section:  B.
■500    ▼aAdvisor:  Yang,  Jian.
■5021  ▼aThesis  (Ph.D.)--Columbia  University,  2023.
■506    ▼aThis  item  must  not  be  sold  to  any  third  party  vendors.
■520    ▼aIon  channels  are  fundamental  to  the  functioning  of  life,  regulating  processes  as  diverse  as  neural  signaling,  homeostasis,  and  environmental  sensing,  across  the  complexities  of  life  from  bacteria  to  the  most  advanced  organisms.  Among  this  vast  diversity  of  ion  channels,  cyclic-nucleotide  gated  (CNG)  channels  hold  particular  significance  and  play  a  pivotal  role  in  the  sensory  transduction  across  a  variety  of  species.  They  transduce  chemical  signals  into  electrical  signals,  linking  the  external  environment  and  our  sensory  perceptions.CNG  channels  were  discovered  almost  40  years  ago  and  much  knowledge  has  been  gained  on  their  physiological  roles,  biophysical  properties,  molecular  characteristics,  and  channelopathies.  However,  the  structural  details  of  these  channels  remained  elusive  for  a  long  time,  mainly  due  to  the  lack  of  a  full-length  channel  structure.  It  was  only  recently  that  atomic-resolution  structures  of  full-length  CNG  channels  became  available,  and  structures  of  native  mammalian  CNG  channels  were  only  determined  within  the  last  two  years.In  my  thesis,  I  use  single  particle  cryogenic  electron  microscopy  (cryo-EM)  to  determine  the  structures  of  native  human  cone  CNGA3/CNGB3  channel  in  different  biochemical  environments  and  in  different  states,  spanning  the  full  spectrum  of  channel  activation  by  its  natural  ligand  cGMP.  In  addition,  I  use  cryo-EM,  electrophysiology,  calcium  imaging,  and  other  biochemical  techniques  to  characterize  both  wild-type  and  disease-associated  mutant  (DAM)  CNG  channels.Collectively,  my  thesis  work  contributes  to  a  deeper  understanding  of  the  structural  determinants  of  CNG  channel  properties,  provides  a  detailed  dissection  of  the  CNG  channel  gating  mechanism,  demonstrates  a  potential  CNG  channel  pathogenic  mechanism,  and  calls  for  an  interdisciplinary  reevaluation  of  CNG  channel  DAMs.
■590    ▼aSchool  code:  0054.
■650  4▼aBiology.
■650  4▼aBiochemistry.
■650  4▼aBiophysics.
■653    ▼aChannelopathy
■653    ▼aCryo-EM
■653    ▼aIon  channels
■653    ▼aMembrane  protein
■653    ▼aStructural  biology
■690    ▼a0306
■690    ▼a0487
■690    ▼a0786
■71020▼aColumbia  University▼bBiological  Sciences.
■7730  ▼tDissertations  Abstracts  International▼g85-02B.
■773    ▼tDissertation  Abstract  International
■790    ▼a0054
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16934830▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.
■980    ▼a202402▼f2024

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
    TF05571 전자도서 마이폴더 부재도서신고 비도서대출신청

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

    해당 도서를 다른 이용자가 함께 대출한 도서

    관련 인기도서

    로그인 후 이용 가능합니다.