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A bird's eye view of NK cell receptor interactions with their MHC class I ligands

Saunders, Philippa M., Vivian, Julian P., O'Connor, Geraldine M., Sullivan, Lucy C., Pymm, Phillip, Rossjohn, Jamie and Brooks, Andrew G. 2015. A bird's eye view of NK cell receptor interactions with their MHC class I ligands. Immunological Reviews 267 (1) , pp. 148-166. 10.1111/imr.12319

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Summary The surveillance of target cells by natural killer (NK) cells utilizes an ensemble of inhibitory and activating receptors, many of which interact with major histocompatibility complex (MHC) class I molecules. NK cell recognition of MHC class I proteins is important developmentally for the acquisition of full NK cell effector capacity and during target cell recognition, where the engagement of inhibitory receptors and MHC class I molecules attenuates NK cell activation. Human NK cells have evolved two broad strategies for recognition of human leukocyte antigen (HLA) class I molecules: (i) direct recognition of polymorphic classical HLA class I proteins by diverse receptor families such as the killer cell immunoglobulin-like receptors (KIRs), and (ii) indirect recognition of conserved sets of HLA class I-derived peptides displayed on the non-classical HLA-E for recognition by CD94-NKG2 receptors. In this review, we assess the structural basis for the interaction between these NK receptors and their HLA class I ligands and, using the suite of published KIR and CD94-NKG2 ternary complexes, highlight the features that allow NK cells to orchestrate the recognition of a range of different HLA class I proteins.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: R Medicine > R Medicine (General)
Uncontrolled Keywords: natural killer cell receptors; killer cell immunoglobulin-like receptors; human leukocyte antigen; CD94-NKG2
Publisher: Wiley-Blackwell
ISSN: 0105-2896
Last Modified: 11 Jun 2019 08:15

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