當(dāng)前位置 ： NEB >>> NEB/DNase I-XT/1,000 units/M0570S
NEB/DNase I-XT/1,000 units/M0570S
  • NEB/DNase I-XT/1,000 units/M0570S

NEB/DNase I-XT/1,000 units/M0570S

價(jià)格: 試用 市場價(jià): 0.00
貨號: M0570S
品牌: NEB
規(guī)格
數(shù)量
庫存(0)
特別 提示
代購產(chǎn)品：無質(zhì)量問題不接受退換貨，下單前請仔細(xì)核對信息。
下單后請及時(shí)聯(lián)系客服核對商品價(jià)格，訂單生效后再付款。
資深產(chǎn)品顧問
咨詢顧問

全國免費(fèi)服務(wù)熱線

4000-520-616

  • 自營商城 一站式服務(wù)
  • 廠家直采 剔除溢價(jià)
  • 品質(zhì)甄選 正品保證
  • 嚴(yán)控流程 只做188精品
  • 極速物流 如約送貨
  • 詳情
  • 使用說明
  • 常見問題
    • An engineered variant of DNase I, DNase I-XT is a salt-tolerant DNA endonuclease that nonspecifically cleaves DNA to release di-, tri- and oligonucleotide products with 5′-phosphorylated and 3′-hydroxylated ends (1,2). DNase I-XT acts on single- and double-stranded DNA, chromatin and the DNA strand of RNA:DNA hybrids. While DNase I (RNase-free)(NEB #M0303) is inhibited by salt concentrations >50 mM, DNase I-XT (NEB #M0570) exhibits optimal activity between 50-100 mM salt and retains 65% and ~40% activity in 200 and 300 mM salt, respectively. This increased salt tolerance makes DNase I-XT the preferred enzyme for DNA template removal from an in vitro transcription (IVT) reaction. Importantly, DNase I-XT is RNase-free, allowing for the complete removal of DNA from RNA preparations while maintaining RNA integrity.
      Figure 1: DNase I-XT efficiently degrades DNA at salt concentrations > 100 mM
      An equimolar comparison of the DNase activity of DNase I (NEB #M0303) and DNase I-XT (NEB #M0570) illustrates the increased salt-tolerance of DNase I-XT as compared to DNase I. DNase activity was measured by an increase in fluorescence from a quenched 35 nt hairpin dsDNA substrate in 1X DNase I Reaction Buffer with increasing salt concentration(as indicated). While DNase I activity steadily decreases with increasing salt concentrations, DNase I-XT remains active in solutions containing up to 300 mM salt.
      Figure 2: DNase I-XT removes more DNA from IVT reactions and RNA preparations
      In vitro transcription reactions (20 μl) were treated with 1) no DNase I; 2) 2 U TURBO® DNase or 3) 2 U DNase I-XT for 15 minutes at 37°C. Each sample was then purified using the Monarch® RNA Cleanup Kit (500 µg, NEB #T2050) and eluted in nuclease-free water (50 μl). The level of residual DNA contamination was quantified by real-time PCR using the Luna® Universal Probe qPCR Master Mix (NEB #M3004). Average Cq (quantification cycle) values for each sample were compared to a standard curve (gray) to determine the percent of residual, PCR-amplifiable DNA. Both TURBO DNase and DNase I-XT require no dilution of the IVT reaction prior to DNase digestion, however, more DNA template is removed from an IVT reaction and undetectable by qPCR when treated with DNase I-XT.
      Figure 3: DNase I-XT efficiently removes residual genomic DNA from crude RNA preparations
      Crude RNA samples were subjected to either: 1) No DNase treatment; 2) in-solution treatment with DNase I-XT (2 U, NEB #M0570) in DNase I-XT Reaction Buffer; 3) in-solution treatment with DNase I (2 U,NEB #M0303) in DNase I Reaction Buffer or 4) in-solution treatment with TURBO DNase (2 U, ThermoFisher) in TURBO DNase Reaction Buffer for 15 minutes at 37°C. Residual genomic DNA (gDNA) was quantified (+/– RT) by RT-qPCR using the Luna Universal One-Step RT-qPCR Kit (NEB #E3005) and human or mouse actin exonic primers. DNase effectiveness was calculated by the difference between the average Cq value -RT (amplified DNA) and the average Cq value +RT (amplified DNA and RNA).DNase I-XT removes more contaminating gDNA from crude RNA preps than either DNAse I or TURBO DNase.

      Product Source

      A His-tagged engineered variant of DNase I expressed in Pichia pastoris.
      This product is related to the following categories:
      Exonucleases and Non-specific Endonucleases Products,
      DNA Modifying Enzymes & Cloning Technologies Products
      This product can be used in the following applications:
      RNA Purification and Isolation,
      RNA Analysis
    售后保障
    螞蟻淘生物188，秉承螞蟻淘一貫的嚴(yán)謹(jǐn)態(tài)度，由螞蟻淘公司專業(yè)人員負(fù)責(zé)品控、采購、物流、銷售、售后，保障正品優(yōu)質(zhì)。以“快速好省，為科研提供好產(chǎn)品、好價(jià)格”為理念，直接鏈接原廠家，從全國各地原制造商嚴(yán)格挑選188款科研精品，剔除品牌溢價(jià)，188生物新電商，把好的產(chǎn)品帶給科研！? 力求給你最優(yōu)質(zhì)的商品。
  • Q：生物188產(chǎn)品正品保障嗎？
    A：生物188質(zhì)量把控人員具有十年的從業(yè)經(jīng)驗(yàn)，在業(yè)界享有良好的口碑；自營商城，直接從廠家采購， 自己的團(tuán)隊(duì)負(fù)責(zé)國際物流和清關(guān)，中間沒有第三方，所有流程嚴(yán)格把控，100%保證正品，假一罰十。

    Q：下單后可以修改訂單嗎？
    A：下單后的商品付款之前可以修改；訂單付款成功，需要聯(lián)系我們客服進(jìn)行修改；客服電話：4000-520-616

    Q：可以開發(fā)票嗎？
    A：本網(wǎng)站所售商品都是正規(guī)清關(guān)，均開具16%正規(guī)發(fā)票，發(fā)票金額含配送費(fèi)金額，另有說明的除外。

    Q：商品幾天可以發(fā)貨？
    A：生物188商品，全部現(xiàn)貨銷售，付款后即可發(fā)貨,一般一周內(nèi)送達(dá)！

    Q：如何聯(lián)系商家？
    A：有任何問題夠可以電話咨詢我們，全國24小時(shí)免費(fèi)服務(wù)熱線：4000-520-616 或聯(lián)系我們的在線客服QQ：1570468124

    Q：收到的商品少了/發(fā)錯(cuò)了怎么辦？
    A：同個(gè)訂單購買多個(gè)商品可能會分為一個(gè)以上包裹發(fā)出，可能不會同時(shí)送達(dá)，建議查看訂單詳情是否是 部分發(fā)貨狀態(tài)；如未收到，可聯(lián)系在線客服或者致電4000-520-616。

    Q：退換貨/維修需要多長時(shí)間？
    A：一般情況下，退貨處理周期為客戶收到產(chǎn)品一個(gè)月內(nèi)（以快遞公司顯示簽收時(shí)間為準(zhǔn)），包裝規(guī)格、 數(shù)量、品種不符，外觀毀損、短缺或缺陷，請?jiān)谑盏截?4小時(shí)內(nèi)申請退換貨；特殊商品以合同條款為準(zhǔn)。

何為188

極簡而嚴(yán)謹(jǐn)，我們僅銷售188款生物醫(yī)學(xué)科研用品，款款都是爆款；因?yàn)樯偎跃劢?，聚焦甄選每一款產(chǎn)品，聚焦服務(wù)每一位客戶!

關(guān)注我們 :

點(diǎn)擊QQ聯(lián)系我們
生物188微信

關(guān)注188微信公眾號

獲取最新優(yōu)惠活動通知

  • 品質(zhì)甄選，正品保證

  • 自營電商，廠家直采

  • 極簡主義，188精品