| 產(chǎn)品編號 | bs-0882R |
| 英文名稱 | Shiga-like toxin IIe variant subunit A Rabbit pAb |
| 中文名稱 | 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. |
| 研究領(lǐng)域 | 細菌及病毒 |
| 抗體來源 | Rabbit |
| 克隆類型 | Polyclonal |
| 交叉反應(yīng) | Escherichia Coli |
| 產(chǎn)品應(yīng)用 | WB=1:500-2000
not yet tested in other applications. optimal dilutions/concentrations should be determined by the end user. |
| 理論分子量 | 36 kDa |
| 檢測分子量 | |
| 性 狀 | Liquid |
| 濃 度 | 1mg/ml |
| 免 疫 原 | KLH conjugated synthetic peptide derived from E.coli Shiga-like toxin IIe variant subunit A: 241-319/319 |
| 亞 型 | IgG |
| 純化方法 | affinity purified by Protein A |
| 緩 沖 液 | 0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol. |
| 保存條件 | Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles. |
| 注意事項 | This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. |
| PubMed | PubMed |
| 產(chǎn)品介紹 |
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. Database links:
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。 |
| 產(chǎn)品圖片 |
Sample: Escherichia Coli at 30ug
Primary: Anti- Shiga-like toxin IIe variant subunit A (bs-0882R) at 1:300 dilution;
Secondary: HRP conjugated Goat-Anti-Rabbit IgG(bse-0295G) at 1: 3000 dilution;
Predicted band size : 36kD
Observed band size : 35kD
Sample: Escherichia Coli at 30ug
Primary: Anti-Shiga-like toxin IIe variant subunit A (bs-0882R) at 1:300 dilution;
Secondary: HRP conjugated Goat-Anti-Rabbit IgG(bse-0295G) at 1: 3000 dilution;
Predicted band size : 36kD
Observed band size : 35kD
|
