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          生物通商城首頁 > 試劑 > 免疫學 > 免疫沉澱 > ChIP試劑盒

          SimpleChIP® Plus Enzymatic Chromatin IP Kit(Agarose Beads)

          品牌:CST 貨号:9004S 立即咨詢 QQ 咨詢留言

          商城價:

          ¥5298.00目錄價:¥7064.00

          特價促銷:

          ¥5298.00
          促  銷:
          • CST滿5千送二抗促銷 詳情>>
          • 産品促銷可參與CST表觀遺傳和ChIP相關産品促銷 詳情>>
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          • 基因有限公司 發貨并提供售後服務

          Shelf Life(month):12
          産地:USA
          存儲條件:4C and -20C
          經過優化可用于在内源水平檢測組織和細胞樣品中蛋白質-DNA 的相互作用。該試劑盒包含基于酶解的染色質免疫共沉澱(ChIP) 實驗的所有試劑,以及陽性和陰性對照。Protein G 瓊脂糖微球,所包含的緩沖液和試劑足夠做30 次ChIP 實驗。酶消化染色質比超聲破碎更加溫和。溫和的處理方式更好保留了染色質完整性和蛋白的抗原表位,增加了免疫沉澱的效率。 詳細的操作步驟專為細胞和組織樣品優化,節約您的時間和試劑。 包含所有試劑和對照,節約時間,提供合适的實驗對照。 試劑盒内包含的ChIP 級磁珠非常适于下遊的ChIP-on-chip 或 ChIP 測序,因為其更高的靈敏度和低背景。Reactivity: H, M, R, Mk. 1 Kit(30 immunoprecipitations).
          The SimpleChIP® Plus Enzymatic Chromatin IP Kit (Magnetic Beads) contains the buffers and reagents necessary to perform up to 30 chromatin immunoprecipitations from cells or tissue samples, and is optimized for 4 X 106 cells or 25 mg of tissue per immunoprecipitation. A complete assay can be performed in as little as two days and can easily be scaled up or down for use with more or less cells or tissue sample. Cells or tissue are fixed with formaldehyde and lysed, and chromatin is fragmented by partial digestion with Micrococcal Nuclease to obtain chromatin fragments of 1 to 5 nucleosomes. Enzymatic fragmentation of chromatin is much milder than sonication and eliminates problems resulting from variability in sonication power and emulsification of chromatin during sonication, which can result in incomplete fragmentation of chromatin or loss of antibody epitopes due to protein denaturation and degradation. Chromatin immunoprecipitations are performed using ChIP-validated antibodies and ChIP-Grade Protein G Magnetic Beads. After reversal of protein-DNA cross-links, the DNA is purified using DNA purification spin columns, allowing for easy and efficient recovery of DNA and removal of protein contaminants without the need for phenol/chloroform extractions and ethanol precipitations. The enrichment of particular DNA sequences during immunoprecipitation can be analyzed by standard PCR, quantitative real-time PCR, or amplification for ChIP on chip, sequencing or cloning techniques. The SimpleChIP® Plus Kit also provides important controls to ensure a successful ChIP experiment. The kit contains a positive control Histone H3 Antibody, a negative control Normal Rabbit IgG Antibody and primer sets for PCR detection of the human and mouse ribosomal protein L30 (RPL30) genes. Histone H3 is a core component of chromatin and is bound to most DNA sequences throughout the genome, including the RPL30 locus. Thus, the Histone H3 Antibody provides a universal positive control that should enrich for almost any locus examined.

          The chromatin immunoprecipitation (ChIP) assay is a powerful and versatile technique used for probing protein-DNA interactions within the natural chromatin context of the cell (1,2). This assay can be used to identify multiple proteins associated with a specific region of the genome, or the opposite, to identify the many regions of the genome bound by a particular protein (3-6). It can be used to determine the specific order of recruitment of various proteins to a gene promoter or to "measure" the relative amount of a particular histone modification across an entire gene locus (3,4). In addition to histone proteins, the ChIP assay can be used to analyze binding of transcription factors and co-factors, DNA replication factors and DNA repair proteins. When performing the ChIP assay, cells or tissues are first fixed with formaldehyde, a reversible protein-DNA cross-linking agent that "preserves" the protein-DNA interactions occurring in the cell (1,2). Cells are lysed and chromatin is harvested and fragmented using either sonication or enzymatic digestion. The chromatin is then immunoprecipitated with antibodies specific to a particular protein or histone modification. Any DNA sequences that are associated with the protein or histone modification of interest will co-precipitate as part of the cross-linked chromatin complex and the relative amount of that DNA sequence will be enriched by the immunoselection process. After immunoprecipitation, the protein-DNA cross-links are reversed and the DNA is purified. Standard PCR or Quantitative Real-Time PCR can be used to measure the amount of enrichment of a particular DNA sequence by a protein-specific immunoprecipitation (1,2). Alternatively, the ChIP assay can be combined with genomic tiling micro-array (ChIP on chip) techniques, high throughput sequencing, or cloning strategies, all of which allow for genome-wide analysis of protein-DNA interactions and histone modifications (5-8).
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