助手标题
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
共[7218]条 当前为第1条到20条[由于搜索限制,当前仅支持显示前5页数据]
 

相关语句
toxin
Ochratoxin A was quantitatively monitored in grain extracts by indirect solid-phase enzyme immunoassay with the use of an immobilized conjugate of the toxin with gelatin and polyclonal rabbit antibodies raised against the ochratoxin A-BSA conjugate.
      
This monitoring found that 1.7 to 18.5% of the samples were contaminated with the toxin at a concentration of 25.9-291.7 μg/kg.
      
It has been demonstrated in model experiments that the decrease in the content of BET in the culture fluid is accounted for by the toxin interaction with an attendant product, the exogenous metabolite (EM).
      
Primary Structure of a Short Toxin from the Venom of a Vietnamese Scorpion (Buthus sp.)
      
The complete amino acid sequence of an important toxin (toxin 14) from the venom of a Vietnamese scorpion (Buthus occitanus sp.) has been determined, which includes 35 amino acid residues and three disulfide bridges (molecular weight, 3843 Da).
      
The comparison of the sequence with known sequences of short scorpion toxins led to the conclusion that toxin 14 belongs to a novel group of toxins affecting the excitability of myelinated nerves.
      
Strains belonging to the mycelial type (I) produced the greatest amount of the toxin, and those of the pionnotal type (III) were the least active.
      
Determination of Tetanus Toxin and Toxoid by ELISA Using Monoclonal Antibodies
      
The procedure for obtaining monoclonal antibodies TT-1, TT-2, and TT-3 against tetanus toxin/toxoid is described.
      
Monoclonal antibodies TT-1 and TT-2 neutralized tetanus toxin in vivo.
      
The monoclonal antibodies obtained were used to design and compare several schemes of quantitative determination of tetanus toxoid and toxin by ELISA.
      
A more sensitive competitive ELISA allowed the detection of as much as 0.01 EC/ml toxoid and 50 LD50/ml toxin.
      
Enzyme immunoassay of immune complexes formed in vitro via interactions of serum antibodies with diphtheria toxin
      
The interaction of diphtheria toxin with serum antitoxin antibodies has been studied by enzyme immunoassay at variable ratios of the original amounts of the antigen and antibodies in the reaction mixture.
      
Under the conditions of excess of the antibodies, the free toxin was not detected, and free antibodies accounted for 68 to 98% of the original amount of the antibodies.
      
Under the conditions of excess of the toxin, free antibodies account for 2 to 7% of the original amount and free toxin, for 80-100% of its original level.
      
Under the conditions where the toxin is taken in excess, and the amounts of the toxin and the antibodies are equivalent, formed immune complexes are regularly detected in the reaction mixtures.
      
In these complexes, part of the epitopes of the toxin remains free from antibodies.
      
The data obtained are interpreted from the viewpoint of epitope heterogeneity, bivalence of serum antibodies, and monovalence of the toxin epitopes.
      
A new model of the toxin-antibody interaction is proposed.
      
 

首页上一页12345下一页尾页 

 
CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社