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Rabbit Anti-Shiga-like toxin IIe variant subunit A/Gold Conjugated antibody (bs-0882R-Gold)
訂購熱線:400-901-9800
訂購郵箱:sales@www.chomd.com.cn
訂購QQ:  400-901-9800
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說 明 書: 100ul(10nm  15nm  35nm
100ul/2980.00元
大包裝/詢價
產(chǎn)品編號 bs-0882R-Gold
英文名稱1 Rabbit Anti-Shiga-like toxin IIe variant subunit A/Gold Conjugated antibody
中文名稱 膠體金標記的大腸桿菌志賀樣毒素Ⅱ型突變體(O139菌型)抗體
別    名 shiga-like toxin II variant chain A precursor.  
規(guī)格價格 100ul/2980元 購買        大包裝/詢價
說 明 書 100ul(10nm  15nm  35nm
研究領域 細菌及病毒  
抗體來源 Rabbit
克隆類型 Polyclonal
交叉反應 Escherichia Coli, 
產(chǎn)品應用 IEM=1:20-200 ICA=1:20-200 ChIP=1:20-200 
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.
分 子 量 36kDa
性    狀 Lyophilized or Liquid
濃    度 0.4mg/ml
免 疫 原 KLH conjugated synthetic peptide derived from Escherichia coli Shiga-like toxin IIe variant subunit A
亞    型 IgG
純化方法 affinity purified by Protein A
儲 存 液 0.02M TBS(pH8.2) with 1% BSA, 0.03% Proclin300.
保存條件 Store at 2-8 oC for 3-6 months. Avoid repeated freeze/thaw cycles.
產(chǎn)品介紹 background:
Shiga-like toxin type II (SLT-II) and Shiga-like toxin type II variant (SLT-IIv) are cytotoxins produced by certain strains of Escherichia coli. Nucleotide sequence analyses had revealed that the structural genes for the A subunit and B subunit of SLT-II or SLT-IIv are arranged in an operon. Primer extension and S1 nuclease protection analyses identified a promoter for the slt-II operon 118 bases upstream of the slt-IIA gene. The slt-IIv promoter was demonstrated to be identical to the slt-II promoter. The slt-II and slt-IIv promoters differed significantly from the previously characterized Shiga toxin (stx) and Shiga-like toxin type 1 (slt-I) promoters. The transcriptional efficiencies of the stx and slt-II promoters were compared in fusions to the chloramphenicol acetyltransferase gene, and constitutive expression of the slt-II promoter was found to be equivalent to derepressed expression of the stx promoter. In contrast to the stx and slt-I promoters, the slt-II and slt-IIv promoters did not contain sequences for binding of the Fur repressor protein, and SLT-II production was not determined by iron levels in the media in various E. coli strains with wild-type or mutant ferric uptake regulation (fur) alleles. Northern (RNA) blot analysis demonstrated a single mRNA transcript for the slt-II operon, and further analysis of the slt-II operon by primer extension did not reveal an independent promoter for the B subunit gene. A putative rho-independent transcription terminator was identified 274 bases downstream of slt-IIB. These data indicated that the slt-II and slt-IIv operons differ from the stx/slt-I operon in regulation of their transcription by iron. Whether these regulatory differences enable the type I and type II groups of Shiga-like toxins to perform different roles in the pathogenesis of infectious diseases remains to be established.

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Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.

水腫病大腸桿菌志賀樣毒素Ⅱ型體,屬人、豬、羊、馬等哺乳動物共患毒素Ⅱ型體。
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