|
| |
| | 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)
|
|
| |
| | 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)
|
|
| |
| | 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)
|
|
| |
| | 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)
|
|
| |
| | 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)
|
|
| |
| | 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)
|
|
| |
| | 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)
|
|
| |
| | 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)
|
|
|