How superantigens bind MHC

L Van Kaer - The Journal of Immunology, 2018 - journals.aai.org
… that MHC products can directly bind to protein Ag–derived … SAg, they rapidly proliferate and
secrete cytokines, after which … MHC class II isotypes and allotypes but that SAg-induced T cell

Overview of T-Cell Recognition: Making Pathogens Visible to the Immune System

AJ Sant - Clinical Immunology, 2019 - Elsevier
Superantigens (SAgs) are microbial proteins that have the … Interleukin-2 (IL-2)–secreting
CD4 T cells facilitate CD8 T-cell … , the class II invariant chain complex can be directly sorted into …

[HTML][HTML] Streptococcus pyogenes Superantigens: Biological properties and potential role in disease

T Proft, JD Fraser - … Basic Biology to Clinical Manifestations [Internet …, 2022 - ncbi.nlm.nih.gov
… to the variable β-chain of the T cell receptor (TcRVβ). Currently, … pyogenes SAgs are generally
secreted in only small amounts… antibody for binding to CD28 without directly binding to the …

The molecular characterization of antibody binding to a superantigen-like protein from a commensal microbe

MT Borowska, C Drees, AE Yarawsky… - Proceedings of the …, 2021 - National Acad Sciences
… of the T cell receptors and outside of the peptide-binding groove of a class II major …
directly measures the thermodynamics of binding but can also estimate the stoichiometry of …

[HTML][HTML] Two common structural motifs for TCR recognition by staphylococcal enterotoxins

KEJ Rödström, P Regenthal, C Bahl, A Ford… - Scientific Reports, 2016 - nature.com
binding site and is therefore unlikely to directly affect binding … as common anchor points for
superantigens in general, we … complex with a human T cell receptor, performed computational …

[HTML][HTML] T cell Receptor Vβ9 in Method for Rapidly Quantifying Active Staphylococcal Enterotoxin Type-A without Live Animals

R Rasooly, P Do, X He, B Hernlem - Toxins, 2019 - mdpi.com
… 100,000 CCRF-CEM T-cell at a ratio of 1/20, the secretion of IL-… binds directly to the
alpha-helical chain of the MHC class II, … that measuring superantigenic activities that stimulate …

MHC molecules, T cell receptors, natural killer cell receptors, and viral immunoevasins—key elements of adaptive and innate immunity

J Jiang, K Natarajan, DH Margulies - Structural Immunology, 2019 - Springer
… protein degradation by the cytoplasmic proteasome [56], or … that directly engage various
natural killer (NK) receptors (such … included in complexes with MHC or superantigen ligands. …

[HTML][HTML] Bivalent binding of staphylococcal superantigens to the TCR and CD28 triggers inflammatory signals independently of antigen presenting cells

M Kunkl, C Amormino, F Spallotta, S Caristi… - Frontiers in …, 2023 - frontiersin.org
… Type I toxins secreted by Staphylococcus aureus are the … of SEB and SEA to directly bind
the surface of primary CD4 + T … To verify whether SEB and SEA binding to the T cell surface …

The γδTCR combines innate immunity with adaptive immunity by utilizing spatially distinct regions for agonist selection and antigen responsiveness

D Melandri, I Zlatareva, RAG Chaleil, RJ Dart… - Nature …, 2018 - nature.com
directly via the TCR. Indeed, TCR V γ 9 V δ 2–mediated γδ … cells (a human TCR-deficient T
cell line that can be used to assay … l1l6 cells elicited IL-2 secretion as well as moderate TCR …

Nasopharyngeal infection by Streptococcus pyogenes requires superantigen-responsive Vβ-specific T cells

JJ Zeppa, KJ Kasper, I Mohorovic… - Proceedings of the …, 2017 - National Acad Sciences
… of toxins secreted by this organism, known as superantigens (… expression of specific Vβ
T-cell receptors, we hypothesized … Antibody titers were determined by direct ELISA against 1 µg …