نتایج جستجو برای: abstractthe extreme polymorphism in mhc b

تعداد نتایج: 17135623  

2014
W. Li W. X. Sun J. F. Hu D. W. Hong S. L. Chen

Major histocompatibility complex (MHC) class II genes play a crucial role in the immune system of vertebrates. Here we report the cloning of full-length cDNA from the swamp eel (Monopterus albus) MHC class II B (MHC-DAB) gene. We described its genomic structure, molecular polymorphism and expression profiles. The full-length cDNA (Gen Bank accession No.:JQ236680) is 1339 bp, encoding a 249 amin...

Journal: :iranian journal of biotechnology 2009
azim mousavizadeh mohammadreza mohammad abadi azam torabi mohammad reza nassiry heydar ghiasi

the growth hormone gene could be an attractive candidate gene for milk production in goats. single-strand conformation polymorphism was used to identify polymorphism at the goat growth hormone (ggh) gene. for this purpose, genotyping of 90 talli goat breeds was performed. nine conformational patterns were observed in exon 4 of the ggh gene, with frequencies of 27.7% for the homozygous pattern (...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2005
Marcia M Miller Carren Wang Emilio Parisini Ricardo D Coletta Ronald M Goto Stella Y Lee Duarte C Barral Maria Townes Carme Roura-Mir Heide L Ford Michael B Brenner Christopher C Dascher

Many of the genes that comprise the vertebrate adaptive immune system are conserved across wide evolutionary time scales. Most notably, homologs of the mammalian MHC gene family have been found in virtually all jawed vertebrates, including sharks, bony fishes, reptiles, and birds. The CD1 family of antigen-presenting molecules are related to the MHC class I family but have evolved to bind and p...

2004
M. R. BHIDE I. MIKULA

Tkáãiková a. , M. R. , Bhide I . Mikula: Asymmetric PCR-SSCP: a Useful Tool for Detection of OLA-DRB1(MHC class II) Gene Polymorphism in Slovak Improved Valachian Sheep. Acta Vet. Brno 2005, 74: 275-278. Detection of OLA-DBR1 (exon 2) gene polymorphism is presented in the paper. Rapid and inexpensive polymorphism detection method, namely, single stranded conformation polymorphism (SSCP) was ass...

2011
Laura Sironi John L Williams Alessandra Stella Giulietta Minozzi Ana Moreno Paola Ramelli Jianlin Han Steffen Weigend Junxing Wan Guerino Lombardi Paolo Cordioli Paola Mariani

BACKGROUND The host mounts an immune response to pathogens, but few data are currently available on the role of host genetics in variation in response to avian influenza (AI). The study presented here investigated the role of the host genetic background in response to in vivo infection with AI virus (AIV). METHODS Experimental lines of chicken and commercial crosses were experimentally infect...

Journal: :Journal of immunology 2000
J A Urvater N Otting J H Loehrke R Rudersdorf I I Slukvin M S Piekarczyk T G Golos A L Hughes R E Bontrop D I Watkins

The rhesus macaque is an important animal model for several human diseases and organ transplantation. Therefore, definition of the MHC of this species is crucial to the development of these models. Unfortunately, unlike humans, lymphocytes from a single rhesus macaque express up to 12 different MHC class I cDNAs. From which locus these various alleles are derived is unclear. In our attempts to ...

Journal: :Proceedings. Biological sciences 2013
J C Winternitz S G Minchey L Z Garamszegi S Huang P R Stephens S Altizer

Understanding drivers of genetic diversity at the major histocompatibility complex (MHC) is vitally important for predicting how vertebrate immune defence might respond to future selection pressures and for preserving immunogenetic diversity in declining populations. Parasite-mediated selection is believed to be the major selective force generating MHC polymorphism, and while MHC-based mating p...

Journal: :Genetics 2006
Takashi Shiina Masao Ota Sayoko Shimizu Yoshihiko Katsuyama Nami Hashimoto Miwa Takasu Tatsuya Anzai Jerzy K Kulski Eri Kikkawa Taeko Naruse Natsuki Kimura Kazuyo Yanagiya Atsushi Watanabe Kazuyoshi Hosomichi Sakae Kohara Chie Iwamoto Yumi Umehara Alice Meyer Valérie Wanner Kazumi Sano Cécile Macquin Kazuho Ikeo Katsushi Tokunaga Takashi Gojobori Hidetoshi Inoko Seiamak Bahram

A plausible explanation for many MHC-linked diseases is lacking. Sequencing of the MHC class I region (coding units or full contigs) in several human and nonhuman primate haplotypes allowed an analysis of single nucleotide variations (SNV) across this entire segment. This diversity was not evenly distributed. It was rather concentrated within two gene-rich clusters. These were each centered, bu...

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