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- W2903065790 abstract "The N-linked glycan in immunoglobulin G is critical for the stability and function of the crystallizable fragment (Fc) region. Alteration of these protein properties upon the removal of the N-linked glycan has often been explained by the alteration of the CH2 domain orientation in the Fc region. To confirm this hypothesis, we examined the small-angle X-ray scattering (SAXS) profile of the glycosylated Fc region (gFc) and aglycosylated Fc region (aFc) in solution. Conformational characteristics of the CH2 domain orientation were validated by comparison with SAXS profiles theoretically calculated from multiple crystal structures of the Fc region with different CH2 domain orientations. The reduced chi-square values from the fitting analyses of gFc and aFc associated with the degree of openness or closure of each crystal structure, as determined from the first principal component that partially governed the variation of the CH2 domain orientation extracted by a singular value decomposition analysis. For both gFc and aFc, the best-fitted SAXS profiles corresponded to ones calculated based on the crystal structure of gFc that formed a “semi-closed” CH2 domain orientation. Collectively, the data indicated that the removal of the N-linked glycan only negligibly affected the CH2 domain orientation in solution. These findings will guide the development of methodology for the production of highly refined functional Fc variants." @default.
- W2903065790 created "2018-12-11" @default.
- W2903065790 creator A5015856863 @default.
- W2903065790 creator A5027321457 @default.
- W2903065790 creator A5035357296 @default.
- W2903065790 creator A5070776413 @default.
- W2903065790 date "2018-12-12" @default.
- W2903065790 modified "2023-10-16" @default.
- W2903065790 title "C<sub>H</sub>2 domain orientation of human immunoglobulin G in solution: Structural comparison of glycosylated and aglycosylated Fc regions using small-angle X-ray scattering" @default.
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- W2903065790 doi "https://doi.org/10.1080/19420862.2018.1546086" @default.
- W2903065790 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6512918" @default.
- W2903065790 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30513259" @default.
- W2903065790 hasPublicationYear "2018" @default.