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| 产地 | 进口、国产 |
| 品牌 | 上海莼试 |
| 保存条件 | Store at -20 °C |
| 货号 | CS9846 |
| 应用范围 | WB=1:100-500 ELISA=1:500-1000 IP=1:20-100 IHC-P=1:100-500 IHC-F=1:100-500 IF=1:100-500 |
| CAS编号 | |
| 抗体名 | Anti-Nanog |
| 克隆性 | |
| 靶点 | 详见说明书 |
| 适应物种 | 详见说明书 |
| 形态 | 详见说明书 |
| 宿主 | 详见说明书 |
| 亚型 | IgG |
| 标识物 | 详见说明书 |
| 浓度 | 1mg/1ml% |
| 免疫原 | KLH conjugated synthetic peptide derived from mouse Nanog |
抗体的生物素化标记实验要点:
1. 胚胎干细胞关键蛋白抗体规格 如在反应混合液中有叠氮钠或游离氨基存在,会抑制标记反应。因此,蛋白质在反应前要对 0.1mol/L碳酸氢钠缓冲液或0.5mol/L硼酸缓冲液充分透析;
2.所用的NHSB及待生物素化蛋白质之间的分子比按蛋白质表面的ε-氨基的密度会有所不同,选择不当则影响标记的效率,应先用几个不同的分子比来筛选最适条件;
3.用NHSB量过量也是不利的,抗原的结合位点可能因此被封闭,导致抗体失活;
4.由于抗体的氨基不易接近可能造成生物素化不足,此时可加入去污剂如 Triton x-100, Tween20等;
5.当游离ε-氨基(赖氨酸残基的氨基)存在于抗体的抗原结合位点时,或位于酶的催化位点时,生物素化会降低或损伤抗体蛋白的结合力或活性;
6.生物素还可能与不同的功能基团,如羰基、氨基、巯基、异咪唑基及*基,也可与糖基共价结合;
7.交联反应后,应充分透析,否则,残余的生物素会对生物素化抗体与亲和素的结合产生竞争作用;
8.在细胞的荧光标记实验中,中和亲和素的本底低,但由于链霉亲和素含有少量正电荷,故对某些细胞可导致高本底。
产品订购信息:
英文名称 Anti-Nanog
中文名称 胚胎干细胞关键蛋白抗体规格
别 名 NANOG_MOUSE; Embryonic stem cell specific homeobox protein (Nanog); ENK; FLJ12581; FLJ40451; Homeobox transcription factor Nanog; Nanog homeobox; Homeobox protein NANOG; ES cell-associated protein 4; Early embryo specific expression NK-type homeobox protein; Homeobox transcription factor Nanog; Nanog; Ecat4.


浓 度 1mg/1ml
规 格 0.1ml/100μg 0.2ml/200μg
抗体来源 Rabbit
克隆类型 polyclonal
交叉反应 Mouse, Rat, Pig
产品类型 一抗
研究领域 干细胞
蛋白分子量 predicted molecular weight: 34kDa
性 状 Lyophilized or Liquid
免 疫 原 KLH conjugated synthetic peptide derived from mouse Nanog
亚 型 IgG
纯化方法 affinity purified by Protein A
储 存 液 0.01M PBS, pH 7.4 with 10 mg/ml BSA and 0.1% Sodium azide
胚胎干细胞关键蛋白抗体规格 产品应用 WB=1:100-500 ELISA=1:500-1000 IP=1:20-100 IHC-P=1:100-500 IHC-F=1:100-500 IF=1:100-500
(石蜡切片需做抗原修复)
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.
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.
Important Note This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
产品介绍 Nanog is a newly identified homeodomain-bearing transcriptional factor. Nanog expression is specific to early embryos and pluripotential stem cells including mouse and human embryonic stem (ES) and embryonic germ (EG) cells. It is a key molecule involved in the signaling pathway for maintaining the capacity for self-renewal and pluripotency, bypassing regulation by the STAT3 pathway. Nanog mRNA is present in pluripotent mouse and human cell lines, and absent from differentiated cells. Nanog-deficient ES cells lose pluripotency and differentiate into extraembryonic endoderm lineage. Thus it is one of the molecular markers suitable for recognizing the undifferentiated state of stem cells in the mouse and human.
NANOG is a new marker for testicular carcinoma in situ and germ cell tumors.NANOG is a gene expressed in embryonic stem cells (ESCs) and is thought to be a key factor in maintaining pluripotency. NANOG thought to function in concert with other factors such as POU5F1 and SOX2 to establish ESC identity. These cells offer an important area of study because of their ability to maintain pluripotency. In other words, these cells have the ability to become virtually any cell of any of the three germ layers (endoderm, ectoderm, mesoderm).Function : Transcription regulator involved in inner cell mass and embryonic stem (ES) cells proliferation and self-renewal. Imposes pluripotency on ES cells and prevents their differentiation towards extraembryonic endoderm and trophectoderm lineages. Blocks bone morphogenetic protein-induced mesoderm differentiation of ES cells by physically interacting with SMAD1 and interfering with the recruitment of coactivators to the active SMAD transcriptional complexes. Acts as a transcriptional activator or repressor. Binds optimally to the DNA consensus sequence 5'-TAAT[GT][GT]-3' or 5'-[CG][GA][CG]C[GC]ATTAN[GC]-3'. When overexpressed, promotes cells to enter into S phase and proliferation.Subunit : Interacts with SMAD1 and SALL4.Subcellular Location : Nucleus.Tissue Specificity : Expressed in testicular carcinoma and derived germ cell tumors (at protein level). Expressed in fetal gonads, ovary and testis. Also expressed in ovary teratocarcinoma cell line and testicular embryonic carcinoma. Not expressed in many somatic organs and oocytes.Similarity : Belongs to the Nanog homeobox family.Contains 1 homeobox DNA-binding domain.Database links :UniProtKB/Swiss-Prot: Q80Z64.1Entrez Gene: 100293888 HumanEntrez Gene: 79923 HumanOmim: 607937 HumanSwissProt: Q9H9S0 HumanUnigene: 635882 Human研究表明;早期胚胎在没有Nanog存在的情况下是不能存活的,但是这一蛋白的表达水平至今还有待于进一步研究。学者认为:Nanog依然是一种对于生殖细胞(germ lls)形成的必要因子,Nanog也是调控着细胞融合后的多重功能的关键因子。胚胎干细胞是当今生命科学和生物技术研究的热点,这主要是由于其具有“发育全能性”的功能。ES能分化成人体200多种细胞类型,形成机体的任何细胞、组织和器官。通过掌握其分化发育的规律,在人工条件下定向分化为所需的细胞、组织乃至器官,科学家们希望可以用来目前还难以或无法的、、、等顽症,并且解决十分紧缺的组织和的来源问题,并且通过进一步与克隆技术相结合,运用体细胞核转移技术来得到ES,还能解决细胞以及组织和的免疫排异难题。

抗体的鉴定:
1)胚胎干细胞关键蛋白抗体规格 抗体的效价鉴定:不管是用于诊断还是用于,制备抗体的目的都是要求较高效价。不同的抗原制备的抗体,要求的效价不一。鉴定效价的方法很多,包括有试管凝集反应,琼脂扩散试验,酶联免疫吸附试验等。常用的抗原所制备的抗体一般都有约成的鉴定效价的方法,以资比较。如制备抗抗体的效价,一般就采用琼脂扩散试验来鉴定。
2)抗体的特异性鉴定:抗体的特异性是指与相应抗原或近似抗原物质的识别能力。抗体的特异性高,它的识别能力就强。衡量特异性通常以交叉反应率来表示。交叉反应率可用竞争抑制试验测定。以不同浓度抗原和近似抗原分别做竞争抑制曲线,计算各自的结合率,求出各自在IC50时的浓度,并按公式计算交叉反应率。
如果所用抗原浓度IC50浓度为pg/管,而一些近似抗原物质的IC50浓度几乎是无穷大时,表示这一抗血清与其他抗原物质的交叉反应率近似为0,即该血清的特异性较好。
3)抗体亲和力:是指抗体和抗原结合的牢固程度。亲和力的高低是由抗原分子的大小,抗体分子的结合位点与抗原决定簇之间立体构型的合适度决定的。有助于维持抗原抗体复合物稳定的分子间力有氢键,疏水键,侧链相反电荷基因的库仑力,范德华力和空间斥力。亲和力常以亲和常数K表示,K的单位是L/mol。抗体亲和力的测定对抗体的筛选,确定抗体的用途,验证抗体的均一性等均有重要意义。

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