Major histocompatibility complex - Medicow
About us  |  Why use us?  |  Press  |  Contact us

 

Topic: Major histocompatibility complex



  
 Major histocompatibility complex - Wikipedia, the free encyclopedia
There are said to be nine separate types of MHC in humans, similar to the way humans have various blood types.
Most explanations invoke balancing selection, a broad term that identifies any kind of natural selection in which no single allele is absolutely most fit.
Indeed, much theory has been devoted to explaining why this particular region of the genome harbors so much diversity, especially in light of its immunological importance.
http://en.wikipedia.org/wiki/Major_histocompatibility_complex   (2156 words)

  
 The Genomic Sequence and Comparative Analysis of the Rat Major Histocompatibility Complex -- Hurt et al. 14 (4): 631 -- ...
The telomeric 1000 kb of the MHC complex in the rat is characterized
The rat MHC is, next to the human MHC, the second mammalian
In contrast, the rat MHC extends further distal, with three
http://www.genome.org/cgi/content/full/14/4/631   (4787 words)

  
 Major Histocompatibility Complex Class II Compartments in Human and Mouse B Lymphoblasts Represent Conventional ...
Lonely MHC molecules seeking immunogenic peptides for meaningful relationships.
Invariant chain distinguishes between the exogenous and endogenous presentation pathways.
Enhancement of MHC Class II-Restricted Responses by Receptor-Mediated Uptake of Peptide Antigens
http://www.jcb.org/cgi/content/full/139/3/639   (7200 words)

  
 Major Histocompatibility Complex
MHC is also important in immunological response and presented along with the antigen as a check.
MHC is a label that identifies your cells from all others, and is the cause for rejected tissue following transplant surgery.
http://www.nwcreation.net/presentations/recombination/sld035.htm   (37 words)

  
 Cell Surface Major Histocompatibility Complex Class II Proteins Are Regulated by the Products of the {gamma}134.5 and ...
have evolved to counteract MHC class I-mediated immune responses.
presentation via the MHC class II pathway, we analyzed the consequences
by the ubiquitin proteasome-mediated pathway, MHC class II surface
http://jvi.asm.org/cgi/content/full/76/14/6974   (8671 words)

  
 Class II Transactivator: Mastering the Art of Major Histocompatibility Complex Expression -- Harton and Ting 20 (17): ...
A class I antigen, HLA-G, expressed in human trophoblasts.
II expression observed in the absence of CIITA?
tissues unable to express class II MHC and the associated self
http://mcb.asm.org/cgi/content/full/20/17/6185   (6957 words)

  
 MAJOR HISTOCOMPATIBILITY COMPLEX
This is one level of control of immune responses.
This is another level of control of immune responses.
Although an individual may not possess MHC molecules capable of binding certain antigenic peptides, say for example against a virulent organism, the likelihood is great that other MHC in the species can do so.
http://pathmicro.med.sc.edu/bowers/mhc.htm   (2423 words)

  
 AccessMedicine - Harrison's Internal Medicine: Chapter 296. The Major Histocompatibility Gene Complex
9 major clinical titles covering internal medicine, emergency medicine, dermatology, obstetrics, cardiology, pharmacology and more.
AccessMedicine is a subscription-based website that features continually updated medical content from favorite medical titles, including Harrison's Principles of Internal Medicine.
Much of our understanding of the MHC has come from investigation of the MHC in mice, which is termed the H-2 complex, and to a lesser degree from other species as well.
http://www.accessmedicine.com/content.aspx?aID=93600   (316 words)

  
 Two distinct proteolytic processes in the generation of a major histocompatibility complex class I-presented peptide ...
A measles virus glycoprotein-derived human CTL epitope is abundantly presented via the proteasomal-dependent MHC class I processing pathway
Two Distinct Pathways Mediated by PA28 and hsp90 in Major Histocompatibility Complex Class I Antigen Processing
Integrated modeling of the major events in the MHC class I antigen processing pathway
http://www.pnas.org/cgi/lookup?vol=94&fp=10850&view=abstract   (2597 words)

  
 Major Histocompatibility Complex - multiple sclerosis encyclopaedia
MS is believed to be an autoimmune disease in which the immune system attacks the body's own tissue and MHC provides the mechanism whereby the immune system determines what is the body's own tissue.
Any two people with the same MHC have compatible body tissue which means that skin and organs from one will be compatible for transplant into the other.
Most cells in the body express MHC proteins.
http://www.mult-sclerosis.org/majorhistocompatibilitycomplex.html   (538 words)

  
 Surface Downregulation of Major Histocompatibility Complex Class I, PE-CAM, and ICAM-1 following De Novo Infection of ...
With this approach, we observed a relative paucity of both immediate-early
Myles H. Thaler Center for AIDS and Human Retrovirus Research,
Note that the levels of KSHV infection per cell and, as a result, the number of cells downregulating MHC class I were slightly lower in this experiment than in most others (see, for example, Fig.
http://jvi.asm.org/cgi/content/full/77/17/9669   (9218 words)

  
 InterPro: IPR003006 Immunoglobulin/major histocompatibility complex
The lineages were carefully selected to provide a view of the major groups of organisms.
X-ray and NMR studies have shown that these domains form a Greek-key beta-sandwich structure with the types differing in the number of strands in the beta-sheets as well as in their sequence patterns [ 2, 3 ].
Beck S. Barrell B.G. Human cytomegalovirus encodes a glycoprotein homologous to MHC class-I antigens.
http://www.ebi.ac.uk/interpro/IEntry?ac=IPR003006   (3093 words)

  
 Histocompatibility Molecules
A graft of our tissue into another human will provoke an immune response which, if left unchecked, will end in the rejection of the transplant.
So the histocompatibility molecules of one individual act as antigens when introduced into a different individual.
Histocompatibility molecules are glycoproteins expressed at the surface of almost all vertebrate cells.
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/H/HLA.html   (1573 words)

  
 Transplantation Biology
GVHD is an especially serious problem with grafts of bone marrow (the source of all blood cells) and cord blood.
The extreme polymorphism of the MHC did not evolve to frustrate transplant surgeons and their patients.
While never identical, they may have inherited some of the same histocompatibility antigens so the recipient's immune response may not be as strong as it otherwise would be.
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/T/Transplants.html   (3034 words)

  
 Evaluation of the major histocompatibility complex (Mhc) in cranes, 8th NA Crane Proceedings, USGS Patuxent Wildlife ...
Substantial evidence exists (particularly in birds) documenting the influences of specific Mhc haplotypes on disease outcome and also that those individuals which are heterozygous for Mhc alleles appear to have an advantage for survival over those that are homozygous.
Although there have been heated discussions concerning the relative importance of using Mhc diversity as a basis for selecting breeders in conservation projects, most parties agree that the genetic variability residual in an endangered species should be maintained through genetic management, if at all possible.
Collaborative multi- organization efforts and the availability of extensive pedigree records have allowed the study of Mhc variability in several species of cranes.
http://www.pwrc.usgs.gov/library/crane8/crane223.htm   (359 words)

  
 Recognition of the Major Histocompatibility Complex Restriction Element Modulates CD8+ T Cell Specificity and ...
occurs only when MHC is expressed at levels considerably higher
CTLs in terms of peptide specificity, when MHC was expressed
T cell avidity for self has been demonstrated in functional assays.
http://www.jem.org/cgi/content/full/189/6/883   (4855 words)

  
 Love at first smell
Dr Siвn Griffiths, Cardiff School of Biosciences said: "Since sticklebacks use the same molecules to communicate information about their immune system as other vertebrates, this experiment can be assumed to be important for many animals, including humans.
However, it seems that our choice of perfume should depend on our MHC genes.
To fight disease, the body's Major Histocompatibility Complex (MHC) molecules identify a disease as a foreign invader.
http://www.physorg.com/news3454.html   (526 words)

  
 major histocompatibility complex
MHC molecules were initially defined as antigens that stimulate an organism's immunologic response to transplanted organs and tissues.
MHC molecules are important components of the immune response.
In human beings the complex is also called the human leukocyte antigen (HLA) system.
http://www.britannica.com/nobel/micro/281_30.html   (422 words)

  
 Chapter 9: Major Histocompatibility Complex
The multi-peptide-binding property of MHC molecules represents the antithesis of most biological receptor/ligand systems where structural specificity in the binding reaction is usually much more narrowly defined.
Three-dimensional structural analysis of the same MHC molecule with different peptides
of MHC proteins is their ability to form complexes with an assortment of different peptides many of which exhibit only marginal structural homology.
http://www.whfreeman.com/immunology/CH09/kuby09.htm   (539 words)

  
 Histocompatibility
This page will describe the MHC molecules and the process of antigen presentation.
The MHC molecules control the immune response through recognition of "self" and "non-self" and, consequently, serve as targets in transplantation rejection.
This small peptide is "presented" to a T-cell and defines the antigen "epitope" that the T-cell recognizes (see below).
http://www.cehs.siu.edu/fix/medmicro/mhc.htm   (889 words)

  
 Major Histocompatibility Complex
As of 1999 the human MHC loci were sequenced.
The changes vary greatly from one allele to the next, and are localized to specific areas that are rich in CpG nucleotide dimers.
Gene conversion using template DNA that resides elsewhere in the genome is responsible for the creation of new MHC genes.
http://www.nwcreation.net/presentations/recombination/sld036.htm   (52 words)

  
 ARS Publication request: Sequence of the Canine Major Histocompatibility Complex Region Containing Non-Classical Class ...
Understanding the canine major histocompatibility complex (MHC) is important to obtain the maximal benefit from the dog model of human diseases and transplantation as well as understanding diseases in the dog.
Dogs also have a high rate of spontaneous cancers and serve as a model for a variety of cancers including prostate cancer.
Interpretive Summary: The canine model has been valuable for hematopoietic stem cell transplantation as well as drug toxicity experiments.
http://www.ars.usda.gov/research/publications/publications.htm?seq_no_115=170934   (335 words)

  
 The Major Histocompatibility Complex (MHC)
This polymorphism is likely to have proved frustrating for pathogens as well…..
“One of the most notable aspects of the MHC, and one of the most frustrating for the transplant surgeon, is the high degree of polymorphism…in the antigens that it encodes.”
http://www.wramc.amedd.army.mil/departments/medicine/NEPHROLOGY/education/lectures/Tximmuo/sld010.htm   (50 words)

  
 Leishmania major infection in major histocompatibility complex class II-deficient mice: CD8+ T cells do not mediate a ...
In contrast to C57BL/6 wild-type mice which are resistant to infection with L. major, these mice developed severe skin lesions that did not heal.
Thus, MHC class II-restricted immune responses, most likely mediated by functional CD4+ T cells, are essential for the control of primary infections with L. major.
The state of the art may have changed since the publication date.
http://www.aegis.com/aidsline/1997/apr/M9741170.html   (511 words)

  
 The Molecular Perspective: Major Histocompatibility Complex -- Goodsell 23 (3): 454 -- Stem Cells
MHC class I, shown on the left, is used my most of our cells to display their own peptides.
It is becoming increasingly clear that MHC may also play a role
MHC class II, shown at the right, plays a more specific role.
http://stemcells.alphamedpress.org/cgi/content/full/23/3/454   (755 words)

  
 Major Histocompatibility Complex
It contains all structures of major histocompatibility complex proteins (MHC) containing bound peptides, with an emphasis on the structural characterisation of these complexes.
Data classes in MPID include MHC-peptide complexes, MHC, Peptides, Interactions and References.
IPD-MHC, a database of sequences of the Major Histocompatibility Complex of different species, is part of the Immuno Polymorphism Database (IPD) set of specialist databases related to the study of polymorphic genes in the immune system.
http://bioresearch.ac.uk/browse/mesh/D008285.html   (441 words)

  
 Class II major histocompatibility complex-deficient mice initially control an infection with Leishmania major but ...
The state of the art may have changed since the publication date.
Class II major histocompatibility complex (MHC)-deficient (H-2b) mice do not express I-A or I-E molecules and, as a result, do not develop CD4 cells.
These results suggest that CD4 cells and MHC class II molecules are essential for resistance to L. major and that in the absence of these cells and molecules, such mice can transiently control infection with L. major but are unable to resolve such infections.
http://www.aegis.com/aidsline/1995/aug/M9580214.html   (449 words)

  
 Evolutionary Relationships of Major Histocompatibility Complex Class I Genes in Simian Primates -- Sawai et al. 166 ...
, and L., 2002  Characterization and phylogenetic relationship of prosimian MHC class I genes.
, J., 1987 The Natural History of the Major Histocompatibility.
Evolutionary Relationships of Major Histocompatibility Complex Class I Genes in Simian Primates -- Sawai et al.
http://www.genetics.org/cgi/content/full/166/4/1897   (5029 words)

  
 HLA-B - Major histocompatibility complex, class I, B - Cancer GeneticsWeb
Disclaimer: This site is for educational purposes only; it can not be used in diagnosis or treatment.
HLA-B - Major histocompatibility complex, class I, B - Cancer GeneticsWeb
Coscoy L, Ganem D Kaposi's sarcoma-associated herpesvirus encodes two proteins that block cell surface display of MHC class I chains by enhancing their endocytosis.
http://www.cancerindex.org/geneweb/HLA-B.htm   (170 words)

  
 The H-2 Complex of the Mouse - The Jackson Laboratory
H-2 is homologous to HLA in man. The H-2 complex consists of several major genes whose products are important in tissue acceptance and rejection.
H-2 is a complex of genetic loci on chromosome 17 that define the major histocompatibility complex of the mouse.
Academic Press, N.Y. Steinmetz, M. Genes of the major histocompatibility complex in the mouse and man. Science 222:727-733.
http://jaxmice.jax.org/library/notes/433b.html   (301 words)

  
 dbMHC Home
The MHC database is fully integrated with other NCBI resources, as well as with the International Histocompatibility Working Group (IHWG) Web site, and provides links to the IMmunoGeneTics HLA (IMGT/HLA) database.
All reagents will be characterized for allele specificity using the current curated WHO HLA allele database in cooperation with IMGT/HLA.
The dbMHC database provides an open, publicly accessible platform for DNA and clinical data related to the human Major Histocompatibility Complex (MHC).
http://www.ncbi.nlm.nih.gov/mhc/MHC.cgi?cmd=init   (154 words)

  
 Gene Conversion of Major Histocompatibility Complex Genes in the Mouse Spermatogenesis is a Premeiotic Event -- ...
Heyting, C., Moens, P.B., van Raamsdonk, W., Dietrich, A.J.J., Vink, A.C.G., and Redeker, E.J.W. Identification of the two major components of the lateral elements of synaptonemal complexes of the rat.
Geliebter, J., Zeff, R.A., Melvold, R.W., and Nathenson, S.G. Mitotic recombination in germ cells generated two major histocompatibility complex mutant genes shown to be identical by RNA analysis: Kbm9 and Kbm6.
They also agree with what has been found
http://www.molbiolcell.org/cgi/content/full/8/12/2511   (3768 words)

  
 Downregulation of Major Histocompatibility Complex...
In these cells, the expression of major histocompatibility complex (MHC) class I antigens is repressed and might allow them to escape from recognition by cytotoxic T lymphocytes and to develop in tumor.
Downregulation of Major Histocompatibility Complex Class I Expression and Susceptibility to Natural Killer Cells in Cells Transformed with the Oncogenic Adenovirus 12 are Regulated by Different E1a Domains
The results obtained suggest that two of Adl2 E1A domains are required to induce resistance of the cell lines to NK cells.
http://www.cancerprev.org/Journal/Issues/21/1/164   (323 words)

  
 A Common Inhibitory Receptor for Major Histocompatibility Complex Class I Molecules on Human Lymphoid and ...
A Common Inhibitory Receptor for Major Histocompatibility Complex Class I Molecules on Human Lymphoid and Myelomonocytic Cells
A Common Inhibitory Receptor for Major Histocompatibility Complex Class I Molecules on Human Lymphoid and Myelomonocytic Cells -- Colonna et al.
Killing of human immunodeficiency virus-infected primary T-cell blasts by autologous natural killer cells is dependent on the ability of the virus to alter the expression of major histocompatibility complex class I molecules
http://www.jem.org/cgi/content/full/186/11/1809   (5802 words)

  
 MHC/UMass Amherst
Easy instructions for creating tutorials like this one.
Further Resources on the MHC (not yet implemented -- send your suggestions to
http://www.umass.edu/microbio/chime/mhc   (262 words)

  
 Class I Major Histocompatibility Complex Antigens and...
ABSTRACT: We determined the frequency of expression of the major histocompatibility complex antigens HLA-A,B,C, in tumor cells from 207 primary tumor lesions of breast and bronchogenic carcinomas, to see if the expression of theses antigens was linked with several clinicopathological parameters associated with tumor aggressivity, such as abnormal cellular DNA content.
We compared tumor tissues with nonneoplastic tissues and tissues from 15 benign breast lesions.
" width="13" height="9" class="inline-icon" src="/Images/Nav/Arrow-Tan.gif" /> Class I Major Histocompatibility Complex Antigens and...
http://www.cancerprev.org/Journal/Issues/22/101/165   (297 words)

  
 Amazon.com: Molecular evolution of the major histocompatibility complex (NATO ASI series): Books
I own the rights to this title and would like to make it available again through Amazon.
Amazon.com: Molecular evolution of the major histocompatibility complex (NATO ASI series): Books
This item is not eligible for Amazon Prime, but over a million other items are.
http://www.amazon.com/exec/obidos/tg/detail/-/3540546081?v=glance   (274 words)

  
 Major Histocompatibility Complex [M.Tevfik Dorak]
Origin of the MHC and Its Polymorphism    Evolutionary Histories of HLA-DRB Haplotypes
http://dorakmt.tripod.com/mhc   (22 words)

 About us   |  Why use us?   |  Press   |  Contact us

 Copyright © 2006 Medicow.com Usage implies agreement with terms.