نتایج جستجو برای: equi protein
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Streptococcus equi (Streptococcus equi subsp. equi), a Lancefield group C streptococcus, causes strangles, a highly contagious purulent lymphadenitis and pharyngitis of members of the family Equidae. The antiphagocytic 58-kDa M-like protein SeM is a major virulence factor and protective antigen. The amino acid sequence and structure of SeM has been determined and compared to that of a second, 4...
Horses that have undergone infection caused by Streptococcus equi subspecies equi (strangles) were found to have significantly increased serum antibody titers against three previously characterized proteins, FNZ (cell surface-bound fibronectin binding protein), SFS (secreted fibronectin binding protein), and EAG (alpha2-macroglobulin, albumin, and immunoglobulin G [IgG] binding protein) from S....
Lannergård, J. 2006. Potentially Virulence-Related Extracellular Proteins of Streptococcus equi. Doctoral thesis. ISSN 1652-6880. ISBN 91-576-7129-X. Equine strangles, a disease of the upper respiratory tract caused by the bacterium Streptococcus equi subspecies equi, is one of the most commonly diagnosed and serious diseases in horses. However, the molecular basis of S. equi subsp. equi infect...
equine babesiosis is a hemoprotozoan tickborne disease with worldwide distribution and caused by theileria equi and babesia caballi. this study was conducted to determine the seroprevalence of t. equi and b. caballi infection in turkoman breed horses in north khorasan province of iran. blood samples were collected from 100 apparently healthy horses and examined by microscopy and indirect immuno...
The secreted Mac protein made by group A Streptococcus (GAS) inhibits opsonophagocytosis of GAS by human polymorphonuclear leukocytes (PMNs). This protein also has the endopeptidase activity against human immunoglobulin G (IgG), and the Cys94, His262 and Asp284 are critical for the enzymatic activity. The horse pathogen Streptococcus equi subspecies equi produces a homologue of Mac (SeMac). SeM...
Equine piroplasmosis is a tick-transmitted protozoan disease caused by Theileria equi and/or Babesia caballi. In the present study, we expressed a 53kDa protein from the truncated EMA-2 gene of T. equi (Indian strain) and developed EMA-2ELISA using this expressed protein. This ELISA is able to detect T. equi-specific antibodies in experimentally infected animals as early as 9 days post-infectio...
The equine piroplasmosis caused by Theileria equi is one of the most important parasitic diseases of the equine, causing damage to animal health and economic losses. In T. equi, 2 merozoite surface proteins, equi merozoite antigen EMA-1 and EMA-2, have been identified as the most immunodominant antigens. This suggests that these antigens might be used as immunobiological tools. The EMA-1 of The...
Karlström, Å. 2005. Collagen-like proteins in horse pathogenic Streptococcus equi Doctoral dissertation ISSN 1652-6880, ISBN 91-576-6998-8 Streptococcus equi subspecies equi is the causative agent of strangles, a respiratory disease that affects horses worldwide. Like other pathogenic bacteria, S. equi subspecies equi expresses a number of extracellular proteins important for the interaction wi...
We examined innate immune responses to the intracellular bacterium Rhodococcus equi and show that infection of macrophages with intact bacteria induced the rapid translocation of NF-kappa B and the production of a variety of proinflammatory mediators, including TNF, IL-12, and NO. Macrophages from mice deficient in MyD88 failed to translocate NF-kappa B and produced virtually no cytokines in re...
considering the importance of theileria equi infection in horse breeding industry and marketing, in the present study, we aimed to determine the prevalence of t. equi among dromedaries in central iran, where a considerable number of camels and horses are raised and equine theileriosis is quite prevalent. for this purpose, a total of 161 blood samples from camels were examined in terms of t. equ...
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