Results 21 to 30 of about 520,866 (339)

Machine learning predictions of MHC-II specificities reveal alternative binding mode of class II epitopes

open access: yesbioRxiv, 2022
CD4+ T cells orchestrate the adaptive immune response against pathogens and cancer by recognizing epitopes presented on MHC-II molecules. The high polymorphism of MHC-II genes represents an important hurdle towards accurate prediction and identification ...
Julien Racle   +14 more
semanticscholar   +1 more source

Within-trio tests provide little support for post-copulatory selection on MHC haplotypes in a free-living population [PDF]

open access: yes, 2021
Sexual selection has been proposed as a force that could help maintain the diversity of major histocompatibility complex (MHC) genes in vertebrates. Potential selective mechanisms can be divided into pre-copulatory and post-copulatory, and in both cases,
Huang, Wu, Pemberton, Josephine M
core   +1 more source

MHC class I and II genes in Serpentes [PDF]

open access: yes, 2020
AbstractGenes of the major class I and II histocompatibility complex have been extensively studied in mammals. Studies of these antigens in reptiles are very scarce. Here we describe the characteristics of these genes in the suborder Serpentes. We identified the presence of a much larger number of molecules of class I and beta chains of class II than ...
Serafin Mirete-Bachiller   +2 more
openaire   +2 more sources

Genetic diversity, evolution and selection in the major histocompatibility complex DRB and DQB loci in the family Equidae

open access: yesBMC Genomics, 2020
Background The mammalian Major Histocompatibility Complex (MHC) is a genetic region containing highly polymorphic genes with immunological functions. MHC class I and class II genes encode antigen-presenting molecules expressed on the cell surface.
Marie Klumplerova   +9 more
doaj   +1 more source

Major histocompatibility complex genomic investigation of endangered Chinese alligator provides insights into the evolution of tetrapod major histocompatibility complex and survival of critically bottlenecked species

open access: yesFrontiers in Ecology and Evolution, 2022
BackgroundThe major histocompatibility complex (MHC) gene family, a vital immune gene family in vertebrates, helps animals defend against pathogens. The polymorphism of MHC genes is important for a species and is considered to be caused by the numerous ...
Ke He   +8 more
doaj   +1 more source

Comprehensive analysis of MHC class II genes in teleost fish genomes reveals dispensability of the peptide-loading DM system in a large part of vertebrates

open access: yesBMC Evolutionary Biology, 2013
BackgroundClassical major histocompatibility complex (MHC) class II molecules play an essential role in presenting peptide antigens to CD4+ T lymphocytes in the acquired immune system. The non-classical class II DM molecule, HLA-DM in the case of humans,
J. M. Dijkstra   +4 more
semanticscholar   +1 more source

Major histocompatibility complex in Osteichthyes

open access: yesJournal of Veterinary Research, 2020
Based on analysis of available genome sequences, five gene lineages of MHC class I molecules (MHC I-U, -Z, -S, -L and -P) and one gene lineage of MHC class II molecules (MHC II-D) have been identified in Osteichthyes.
Stosik Michał   +2 more
doaj   +1 more source

A novel HURRAH protocol reveals high numbers of monomorphic MHC class II loci and two asymmetric multi-locus haplotypes in the Père David's deer. [PDF]

open access: yesPLoS ONE, 2011
The Père David's deer is a highly inbred, but recovered, species, making it interesting to consider their adaptive molecular evolution from an immunological perspective.
Qiu-Hong Wan   +7 more
doaj   +1 more source

Modulation of Gene Expression by the MHC Class II Transactivator [PDF]

open access: yesThe Journal of Immunology, 2002
Abstract The class II transactivator (CIITA) is a master regulator of MHC class II expression. CIITA also modulates the expression of MHC class I genes, suggesting that it may have a more global role in gene expression. To determine whether CIITA regulates genes other than the MHC class II and I family, DNA microarray analysis was used ...
Alyssa Bushey   +2 more
openaire   +3 more sources

Mice lacking the MHC class II transactivator (CIITA) show tissue-specific impairment of MHC class II expression [PDF]

open access: yes, 1996
CIITA activates the expression of multiple genes involved in antigen presentation and it is believed to be required for both constitutive and IFN\xce\xb3-inducible expression of these genes.
Chang, C.-H. (Cheong-Hee)   +4 more
core   +1 more source

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