G蛋白结合蛋白α16/Gα16抗体

G蛋白结合蛋白α16/Gα16抗体

产品编号    LM13248R    

英文名称    G protein alpha 16    

中文名称    G蛋白结合蛋白α16/Gα16抗体    

别    名    G alpha 15; G alpha 16; G alpha-15; G alpha-16; G-protein subunit alpha-15; G-protein subunit alpha-16; GNA 15; GNA 16; GNA15; GNA15_HUMAN; GNA16; Gq class; Guanine nucleotide binding protein alpha 15; Guanine nucleotide binding protein alpha 15 subunit; Guanine nucleotide-binding protein subunit alpha-15; Guanine nucleotide-binding protein subunit alpha-16.      

研究领域    细胞生物  信号转导  干细胞  G蛋白偶联受体  G蛋白信号      

抗体来源    Rabbit    

克隆类型    Polyclonal    

交叉反应    Human, Mouse, Rat, Dog, Pig, Cow, Horse, Rabbit, Sheep,     

产品应用    WB=1:500-2000 ELISA=1:500-1000 IHC-P=1:400-800 IHC-F=1:400-800 ICC=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.    

分 子 量    44kDa    

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 G protein alpha 16:301-374/374     

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    Heterotrimeric G proteins function to relay information from cell surface receptors to intracellular effectors (1). Each of a very broad range of receptors specifically detects an extracellular stimulus (a photon, pheromone, odorant, hormone or neurotransmitter) while the effectors (i.e., adenylyl cyclase), which act to generate one or more intracellular messengers, are less numerous. In mammals, G protein alpha, Beta and Gamma polypeptides are encoded by at least 16, 4 and 7 genes, respectively (2-5). Most interest in G proteins has been focused on their a subunits, since these proteins bind and hydrolyze GTP and most obviously regulate the activity of the best studied effectors. Four distinct classes of G alpha subunits have been identified; these include Gs, Gi, Gq and Ga 12/13 (3,4). The Gi class comprises all the known a subunits that are susceptible to pertussis toxin modifications, including Ga i-1, Ga i-2, Ga i-3, Ga o, Ga t1, Ga t2, Ga z and Ga gust (4). Of these, the three Ga i subtypes function to open atrial potassium channels (6). Ga 16 is a member of the Gq subfamily and is expressed specifically in hematopoietic cells (7).    

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。