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Gating and Permeation of Ion Channels

Dukes, Joe Warren (2005) Gating and Permeation of Ion Channels. Master's Thesis, University of Pittsburgh. (Unpublished)

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Recent crystal structures of ClC chloride channels have led to a proposed fast-gating mechanism that couples ion permeation to ion channel gating. This proposed mechanism is studied by pushing the amino acid E148 of StClC out of the path of the proposed permeation path. The resulting structure produces an open state that is similar to the mutant EcClC E148Q structure, a proposed open structure of ClC-type channels. Due to the interaction of the fast-gate with permeating ions, a hybrid methodology is proposed for explicitly simulating the interaction of protein fluctuations with permeating ions. This methodology is used for two model systems and compared to single-ion Potential of Mean Force permeation models methodologies.


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Item Type: University of Pittsburgh ETD
Status: Unpublished
CreatorsEmailPitt UsernameORCID
Dukes, Joe Warrenjwdukes@pitt.eduJWDUKES
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee ChairCoalson, Rob Drob@ringo.chem.pitt.eduCOALSON
Committee MemberWalker, Gilbertgilbertw@pitt.eduGILBERTW
Committee MemberJordan, Kennethjordan@pitt.eduJORDAN
Date: 3 February 2005
Date Type: Completion
Defense Date: 17 November 2004
Approval Date: 3 February 2005
Submission Date: 6 December 2004
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Institution: University of Pittsburgh
Schools and Programs: Dietrich School of Arts and Sciences > Chemistry
Degree: MS - Master of Science
Thesis Type: Master's Thesis
Refereed: Yes
Uncontrolled Keywords: gating; ion channels; permeation
Other ID:, etd-12062004-115051
Date Deposited: 10 Nov 2011 20:08
Last Modified: 15 Nov 2016 13:53


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