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诱捕受体2抗体
产品编号 LM1694R
英文名称 DcR2
中文名称 诱捕受体2抗体
别 名 TNFRSF10D; Decoy receptor 2; CD 264; CD264; CD-264; DcR 2; decoy with truncated death domain; ID; TNF receptor related receptor for TRAIL; TNF related apoptosis inducing ligand receptor 4; TNFRSF 10D; TRAIL R4; TRAIL receptor 4; TRAIL receptor with a truncated death domain; TRAILR4; TRIALR 4; TRUNDD; Tumor necrosis factor receptor superfamily member 10d decoy with truncated death domain; Tumor necrosis factor receptor superfamily member 10D precursor; TR10D_HUMAN.
研究领域 肿瘤 细胞生物 免疫学 细胞凋亡 细胞膜受体
抗体来源 Rabbit
克隆类型 Polyclonal
交叉反应 Human,
产品应用 WB=1:500-2000 ELISA=1:500-1000 Flow-Cyt=1μg /test
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.
分 子 量 36kDa
细胞定位 细胞膜
性 状 Lyophilized or Liquid
浓 度 1mg/ml
免 疫 原 KLH conjugated synthetic peptide derived from human DcR2:56-160/386 <Extracellular>
亚 型 IgG
纯化方法 affinity purified by Protein A
储 存 液 0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol.
保存条件 Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. The lyophilized antibody is stable at room temperature for at least one month and for greater than a year when kept at -20°C. When reconstituted in sterile pH 7.4 0.01M PBS or diluent of antibody the antibody is stable for at least two weeks at 2-4 °C.
PubMed PubMed
产品介绍 Apoptosis is induced by certain cytokines including TNF and Fas ligand in the TNF family through their death domain containing receptors. TRAIL/Apo2L, a member of the TNF family, induces apoptosis of a variety of tumor cell lines. DR4 and DR5 are functional receptors for TRAIL, and DcR1/TRID is a decoy receptor. Another member of the TRAIL receptor family was identified and designated DcR2. The DcR2 receptor is 386 amino acids in length and has an extracellular TRAIL binding domain, but lacks intracellular death domain and does not induce apoptosis. Although this receptor binds to the cytotoxic ligand TRAIL, it contains a truncated death domain and functions as an inhibitory receptor. When overexpressed, the DcR2 receptor can protect cells against TRAIL mediated cytotoxicity. Like DR4 and DR5, DcR2 transcript is widely expressed in a variety of normal human tissues but DcR2 is absent in most tumors. Ultraviolet radiation has been shown to upregulate DcR2 expression on human keratinocytes. Over expression of DcR2 attenuated TRAIL induced apoptosis.
DcR1因缺乏细胞内信号传导系统而不能传递凋亡信号,但能竞争性与TRAIL(肿瘤坏死因子相关凋亡诱导配体)结合,有干扰凋亡信号的传导作用。
抗原与抗体的关系
①抗体和相应的抗原结合后,可以促进白细胞的吞噬作用而将抗原消除,使抗原失去致病作用。
②一种抗体只能抵抗一种抗原,而且一种抗体只能受相应的抗原刺激后才能形成。
免疫的功能:
免疫具有三方面的功能:
①防御功能:抵抗抗原的侵入、防止疾病的产生。
②自我稳定:清除体内衰老、死亡和损伤的细胞。
③免疫监视:监视、识别和清除体内产生的异常细胞。
特别提醒:过敏反应:当人体抵抗抗原侵入的功能过强时,在过敏原(引起过敏反应的物质,如某些食物、药物)的刺激下,人体就会发生过敏反应。
1.抗体名称容易出错
抗体一般以抗原来命名,名称核对时最简单也最容易犯错,有些蛋白质有不同亚基(HIF-1α、HIF-1β);有些蛋白质有不同磷酸化状态,例如EGFR和p-EGFR的区别,等等。
除了蛋白质的名称外,有其他后缀。
2.多抗和单抗不同
单抗上面介绍过了,而多抗(polyclonal antibodies)一般用兔子、山羊等大型动物,因为多抗是直接从血液中纯化提取出来的,而不像单抗是用细胞培养出来的。
单克隆抗体的优点是产量持续稳定、特异性较高、但灵敏度不如多抗。如果对抗体的特异性要求高,用量较大或需要长期使用一致的抗体,制备的抗体应用要求多(WB/IP/IF/ICC等),可以选择单克隆抗体。
多抗的特异性较差,存在批间差(因为兔子的血被放光挂掉了,而山羊可以常年养着,放点血出来,在养几天再放血,好残忍),易造成背景,例如在WB中有杂带,在IHC中背景较深等等。但由于多抗识别多个抗原表位,对于丰度偏低的蛋白也更容易检出。