背景介紹：Component of the cap-binding complex (CBC), which binds co-transcriptionally to the 5' cap of pre-mRNAs and is involved in various processes such as pre-mRNA splicing, translation regulation, nonsense-mediated mRNA decay, RNA-mediated gene silencing (RNAi) by microRNAs (miRNAs) and mRNA export. The CBC complex is involved in mRNA export from the nucleus via its interaction with THOC4/ALY, leading to the recruitment of the mRNA export machinery to the 5' end of mRNA and to mRNA export in a 5' to 3' direction through the nuclear pore. The CBC complex is also involved in mediating U snRNA and intronless mRNAs export from the nucleus. The CBC complex is essential for a pioneer round of mRNA translation, before steady state translation when the CBC complex is replaced by cytoplasmic cap-binding protein eIF4E. The pioneer round of mRNA translation mediated by the CBC complex plays a central role in nonsense-mediated mRNA decay (NMD), NMD only taking place in mRNAs bound to the CBC complex, but not on eIF4E-bound mRNAs. The CBC complex enhances NMD in mRNAs containing at least one exon-junction complex (EJC) via its interaction with UPF1, promoting the interaction between UPF1 and UPF2. The CBC complex is also involved in 'failsafe' NMD, which is independent of the EJC complex, while it does not participate in Staufen-mediated mRNA decay (SMD). During cell proliferation, the CBC complex is also involved in microRNAs (miRNAs) biogenesis via its interaction with SRRT/ARS2 and is required for miRNA-mediated RNA interference. The CBC complex also acts as a negative regulator of PARN, thereby acting as an inhibitor of mRNA deadenylation. In the CBC complex, NCBP1/CBP80 does not bind directly capped RNAs (m7GpppG-capped RNA) but is required to stabilize the movement of the N-terminal loop of NCBP2/CBP20 and lock the CBC into a high affinity cap-binding state with the cap structure.

別名：80 kDa nuclear cap-binding protein; CBP80; MGC2087; NCBP 80 kDa subunit; NCBP; ncbp1; NCBP1_HUMAN; nuclear cap binding protein subunit 1; nuclear cap binding protein subunit 1, 80kDa; Nuclear cap-binding protein subunit 1; Sto1.

核帽結(jié)合蛋白1抗體，Anti-NCBP1抗體簡(jiǎn)單介紹：

產(chǎn)品編號(hào)：BYK-19043R

英文名稱：Anti-NCBP1
中文名稱：核帽結(jié)合蛋白1抗體

產(chǎn)品規(guī)格：50ul；100ul；200ul；1ml，*

抗體來(lái)源 Rabbit or Mouse

克隆類(lèi)型 Polyclonal or Monoclonal

交叉反應(yīng)、產(chǎn)品應(yīng)用 （具體交叉反應(yīng)與產(chǎn)品應(yīng)用請(qǐng)或添加客服直接索?。?/span>

性    狀 Lyophilized or Liquid
濃    度 1mg/ml

核帽結(jié)合蛋白1抗體，Anti-NCBP1抗體產(chǎn)品信息：

博研生物小課堂：

常用激光器對(duì)應(yīng)熒光素的選擇：

藍(lán)色激光器熒光素（488nm）：Alexa Fluor 488、FITC、PerCP、PerCP-Cy5.5、PE、PE-Cy5.5、PE-Cy5、PE-Cy7

紅色激光器熒光素（633nm）：APC、Cy5、APC-Cy5.5、APC-Cy7、Alexa Fluor 647

黃色激光器熒光素（561nm）：PE、PE-Cy5.5、PE-Cy5、PE-Cy7、Cy3、Alexa Fluor 555、Alexa Fluor 594

合適的抗體稀釋度

抗體的濃度是免疫染色的關(guān)鍵，如果抗體濃度過(guò)高，抗體分子過(guò)多于抗原決定簇，可導(dǎo)致抗體結(jié)合減少，產(chǎn)生陰性結(jié)果。此陰性結(jié)果并不一定是缺少抗原，而是由于抗體過(guò)量，這種現(xiàn)象類(lèi)似于凝集反應(yīng)中的前帶效應(yīng)（prozone effect）。因此，必須使用一系列稀釋做“棋盤(pán)式效價(jià)滴定”，檢測(cè)抗體的合適稀釋度，以得到zui大強(qiáng)度的特異性染色和zui弱的背景染色?？贵w稀釋度應(yīng)根據(jù)：1.抗體效價(jià)高，溶液中特異性抗體濃度越高，工作稀釋度越高；2.一般講，應(yīng)用的抗體稀釋度越大，溫育時(shí)間越長(zhǎng)；3.對(duì)于抗體與非特異性蛋白的結(jié)合，只有高稀釋度時(shí)才能防止其非特異性背景染色；4.稀釋用緩沖液的種類(lèi)，標(biāo)本的固定和處理過(guò)程等也可影響稀釋度，所以合適的稀釋度應(yīng)根據(jù)具體情況測(cè)定?？贵w的稀釋主要是指*抗體，因?yàn)?抗體中特異性抗體合適的濃度是關(guān)鍵，應(yīng)用高稀釋度*抗體僅高親和力的特異性染色反應(yīng)，減少或消除其中交叉抗體反應(yīng)。

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