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Fusion partner toolchest for the stabilization and crystallization of G protein-coupled receptors.


ABSTRACT: Structural studies of human G protein-coupled receptors (GPCRs) have recently been accelerated through the use of a fusion partner that was inserted into the third intracellular loop. Using chimeras of the human ?(2)-adrenergic and human A(2A) adenosine receptors, we present the methodology and data for the initial selection of an expanded set of fusion partners for crystallizing GPCRs. In particular, use of the thermostabilized apocytochrome b(562)RIL as a fusion partner displays certain advantages over previously utilized fusion proteins, resulting in a significant improvement in stability and structure of GPCR-fusion constructs.

SUBMITTER: Chun E 

PROVIDER: S-EPMC3375611 | biostudies-literature | 2012 Jun

REPOSITORIES: biostudies-literature

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Fusion partner toolchest for the stabilization and crystallization of G protein-coupled receptors.

Chun Eugene E   Thompson Aaron A AA   Liu Wei W   Roth Christopher B CB   Griffith Mark T MT   Katritch Vsevolod V   Kunken Joshua J   Xu Fei F   Cherezov Vadim V   Hanson Michael A MA   Stevens Raymond C RC  

Structure (London, England : 1993) 20120601 6


Structural studies of human G protein-coupled receptors (GPCRs) have recently been accelerated through the use of a fusion partner that was inserted into the third intracellular loop. Using chimeras of the human β(2)-adrenergic and human A(2A) adenosine receptors, we present the methodology and data for the initial selection of an expanded set of fusion partners for crystallizing GPCRs. In particular, use of the thermostabilized apocytochrome b(562)RIL as a fusion partner displays certain advant  ...[more]

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