Matches in SemOpenAlex for { <https://semopenalex.org/work/W2018219389> ?p ?o ?g. }
- W2018219389 abstract "Several recently proposed models for the in vivo biogenesis of class I MHC molecules focus on the retention of empty dimers as a postulated intermediate in the assembly of the complete complexes. The data presented in this study support a slightly different model of class I biogenesis, which includes a precursor population of H-2Db heavy chains (HCs) that is retained in the ER of murine cells prior to its association with beta-2 microglobulin (beta 2m). For this study the intracellular ratios of the subunits that comprise class I molecules have been manipulated to generate a transfected cell line which assembles only very small numbers of unstable H-2Db molecules. Immunoprecipitation experiments with this transfected cell line demonstrated that nascent beta 2m was assembled into complete H-2Db heterotrimers more rapidly than nascent H-2Db HCs by normal murine cells. These data were not consistent with the simultaneous retention of the two associated subunits (HC and beta 2m) in a pool of precursor molecules. However, a previously uncharacterized subset of immature H-2Db HCs, which were not associated with beta 2m, has been detected. These immature HCs exhibited several characteristics of a precursor to complete class I molecules and required a supply of endogenously synthesized peptides for their normal processing in vivo." @default.
- W2018219389 created "2016-06-24" @default.
- W2018219389 creator A5032389976 @default.
- W2018219389 date "1995-02-01" @default.
- W2018219389 modified "2023-10-14" @default.
- W2018219389 title "Evidence for an early heavy chain intermediate in the assembly of H-2Db class I MHC molecules" @default.
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- W2018219389 doi "https://doi.org/10.1016/0161-5890(94)00123-i" @default.
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