Results 101 to 110 of about 519,305 (288)
The role of insulin-regulated aminopeptidase in MHC class I antigen presentation
Production of MHC I ligands from antigenic proteins generally requires multiple proteolytic events. While the proteolytic steps required for antigen processing in the endogenous pathway are clearly established, persisting gaps of knowledge regarding ...
Peter M Van Endert, Loredana eSaveanu
doaj +1 more source
Toll-like receptor (TLR)-9 recognizes CpG motifs in microbial DNA. TLR9 signalling stimulates innate antimicrobial immunity and modulates adaptive immune responses including autoimmunity against chromatin, e.g., in systemic lupus erythematosus (SLE ...
Anders HJ, H-J Anders, Stacey KJ
core +1 more source
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
Anisakis pegreffii impacts differentiation and function of human dendritic cells [PDF]
Human dendritic cells (DCs) show remarkably phenotypic changes when matured in presence of helminth-derived products. These modifications frequently elicited a polarization towards Th2 cells and regulatory T cells thus contributing to immunological ...
Allen +55 more
core +1 more source
Exiting the Outside World for Cross-Presentation [PDF]
How are extracellular proteins cross-presented on MHC class I molecules? In this issue of Immunity, demonstrate that the ER-associated degradation (ERAD) export pathway operates in the phagosomes of dendritic cells and transfers antigens into the MHC class I pathway.
openaire +2 more sources
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Minimal-area metrics on the Swiss cross and punctured torus
The closed string field theory minimal-area problem asks for the conformal metric of least area on a Riemann surface with the condition that all non-contractible closed curves have length at least 2\pi.
Headrick, Matthew, Zwiebach, Barton
core +1 more source
Antigen cross‐presentation: proteasome location, location, location [PDF]
Our understanding of the mechanisms by which peptides from proteins present in phagosomes and endosomes are processed and presented on MHC class I molecules, in a pathway called cross-presentation, is still incomplete. One of the main questions arising from currently proposed models is how do proteins in the phagosome lumen reach the proteasome in the ...
openaire +2 more sources
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley +1 more source
Mycoplasma fermentans-derived diacylated lipoprotein M161Ag (MALP404) is recognized by human/mouse toll-like receptor (TLR) 2/TLR6. Short proteolytic products including macrophage-activating lipopeptide 2 (MALP2) have been utilized as antitumor immune ...
Yohei Takeda +5 more
doaj +1 more source

