G蛋白/鸟苷酸结合蛋白抗体英文名称 Anti-G protein beta subunit GI
中文名称 G蛋白/鸟苷酸结合蛋白抗体
别 名 G protein beta subunit GI/GS/GT; guanine nucleotide binding protein (G protein), beta polypeptide 1; guanine nucleotide-binding protein G; GBB1_HUMAN.
浓 度 1mg/1ml
规 格 0.2ml/200μg
纯化的抗体可通过不同的途径获取,有些G蛋白/鸟苷酸结合蛋白抗体可通过下述方法制备或从商家购买。从商家购买的抗体,通常附有正确的储存方法。
1)工作液应在4℃下融化并存放,可能稳定达数月。
2)如果没有特殊原因而避免使用叠氮钠,亦可加入叠氮钠,浓度为0.02%。将纯化的抗体样本分装成合适的体积,于-20℃保存。
3)纯化的抗体溶液应以较高的浓度(如lmg/m1)在中性pH下保存。:常用的抗体储存浓度高达l0mg/ml。较低浓度的抗体冻存前应浓缩。所有标准的浓缩方法(如超滤法),皆可使用。还有一个简单的方法是用蛋白A或蛋白G亲和柱来浓缩溶液。如果纯化的抗体不是用于标记,可将它们以较低浓度储存于加有1%BSA的溶液中。
4)经纯化制备的抗体在常用的缓冲液中是稳定的。其DH应保持在中性左右。如果pH在7-8之间,即使保存多年,对抗体也无损害。多数情况下,盐浓度适于保持在0-150mmol/L之间,但在长期存放的抗体中,盐溶液浓度高达500mmol/L时,对G蛋白/鸟苷酸结合蛋白抗体能有损害。如果没有其他说明.律议用PBS或50mmol/LTris(DH8.0)溶液长期存放抗体。
抗体来源 Rabbit
克隆类型 polyclonal
交叉反应 Human, Mouse, Rat, Chicken, Dog, Pig, Cow, Horse
产品类型 一抗
研究领域 细胞生物 免疫学 神经生物学
蛋白分子量 predicted molecular weight: 37kDa
性 状 Lyophilized or Liquid
免 疫 原 KLH conjugated synthetic peptide derived from human G protein beta subunit GI C-terminus
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
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.
G蛋白/鸟苷酸结合蛋白抗体产品介绍 G protein beta subunit GI/GS/GT (guanine nucleotide-binding protein G). WD40 domain, found in a number of eukaryotic proteins that cover a wide variety of functions including adaptor/regulatory modules in signal transduction, pre-mRNA processing and cytoskeleton assembly; typically contains a GH dipeptide 11-24 residues from its N-terminus and the WD dipeptide at its C-terminus and is 40 residues long, hence the name WD40; between GH and WD lies a conserved core; serves as a stable propeller-like platform to which proteins can bind either stably or reversibly; forms a propeller-like structure with several blades where each blade is composed of a four-stranded anti-parallel b-sheet; instances with few detectable copies are hypothesized to form larger structures by dimerization; each WD40 sequence repeat forms the first three strands of one blade and the last strand in the next blade; the last C-terminal WD40 repeat completes the blade structure of the first WD40 repeat to create the closed ring propeller-structure; residues on the top and bottom surface of the propeller are proposed to coordinate interactions with other proteins and/or small ligands; 7 copies of the repeat are present in this alignment.
Function : Guanine nucleotide-binding proteins (G proteins) are involved as a modulator or transducer in various transmembrane signaling systems. The beta and gamma chains are required for the GTPase activity, for replacement of GDP by GTP, and for G protein-effector interaction.
Subunit : G proteins are composed of 3 units, alpha, beta and gamma. Interacts with ARHGEF18 and RASD2. The heterodimer formed by GNB1 and GNG2 interacts with PTH1R (via C-terminus).
Post-translational modifications : Phosphorylation at His-266 by NDKB contributes to G protein activation by increasing the high energetic phosphate transfer onto GDP (By similarity).
Similarity : Belongs to the WD repeat G protein beta family.
Contains 7 WD repeats.
Database links : UniProtKB/Swiss-Prot: P62873.3
G蛋白又称:鸟苷酸结合蛋白,存在于全身各个组织和细胞中,G蛋白在信息传递中起到很重要的作用,参与细胞内外信息的相互传导。
激素受体与腺苷酸环化酶是细胞膜上两类分开的蛋白质。激素受体结合的部分在细胞膜的外表面,而腺苷环化酶在膜的胞浆面,在两者之间存在一种起耦联作用的调节蛋白——鸟苷酸结合蛋白(guanine nucleotide-binding regulatory protein)细胞受到各种刺激信息,包括化学性的激素和神经递质及非化学性的声音、图像等。刺激信息通过G蛋白的激活作用,在胞浆中生成数目众多的第二信使分子,产生十万级放大效应,引起细胞兴奋,让后促动器官完成各自功能。
1977年,美国科学家阿尔弗雷德-戈德曼-吉尔曼(Alfred Goodman Gilman)发现了G蛋白及其在细胞兴奋传导方面的重要作用。1994年,吉尔曼因“G蛋白”方面的研究成果而荣获诺贝尔生理及医学奖。