脑肠肽抗体

脑肠肽抗体英文名称  Anti-Ghrelin/Obestatin 

中文名称  脑肠肽抗体  

别    名  Appetite regulating hormone; Ghrelin 27; Ghrelin 28; Ghrelin/obestatin prepropeptide; GHRL; Growth hormone releasing peptide; Growth hormone secretagogue; M46 protein; Motilin related peptide; MTLRP; Obestatin; Obestatin preprohormone; PRO1066; UNQ524. 

浓    度  1mg/1ml 

规 格  0.1ml/100μg  0.2ml/200μg  1ml/1mg   

纯化的抗体可通过不同的途径获取，有些脑肠肽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，对脑肠肽抗体能有损害。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, Dog, Pig, Cow, Sheep

产品类型  一抗    

研究领域  心血管 神经生物学 信号转导 生长因子和激素 糖尿病 新陈代谢  

蛋白分子量  predicted molecular weight: 10kDa 

性    状  Lyophilized or Liquid 

免 疫 原  KLH conjugated synthetic peptide derived from human Ghrelin 

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   ELISA=1:500-1000  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. 

脑肠肽抗体产品介绍 This gene encodes ghrelin-obestatin preproprotein, which generates ghrelin and obestatin. Ghrelin is an endogenous ligand for the growth hormone secretagogue receptor and is involved in regulating growth hormone release. Obestatin was initially reported to be an endogenous ligand for the orphan G protein-coupled receptor GPR39 and was involved in satiety and decreased food intake; however, these findings are controversial. Recent reports show that obestatin is involved in inhibiting thirst and anxiety, improving memory, regulating sleep, affecting cell proliferation, and increasing the secretion of pancreatic juice enzymes. Alternative promoters and alternative splicing result in multiple transcript variants, some of which encode different protein isoforms and some of which do not encode a protein but may regulate the ghrelin-obestatin preproprotein expression. In addition, antisense transcripts for this gene have been identified and may also function in regulation of the ghrelin-obestatin preproprotein expression. [provided by RefSeq, Oct 2008].

Function : Ghrelin is the ligand for growth hormone secretagogue receptor type 1 (GHSR). Induces the release of growth hormone from the pituitary. Has an appetite-stimulating effect, induces adiposity and stimulates gastric acid secretion. Involved in growth regulation.

Obestatin may be the ligand for GPR39. May have an appetite-reducing effect resulting in decreased food intake. May reduce gastric emptying activity and jejunal motility.

Subcellular Location : Secreted.

Tissue Specificity : Highest level in stomach. All forms are found in serum as well. Other tissues compensate for the loss of ghrelin synthesis in the stomach following gastrectomy.

Post-translational modifications : O-octanoylation or O-decanoylation is essential for ghrelin activity. The O-decanoylated forms Ghrelin-27-C10 and Ghrelin-28-C10 differ in the length of the carbon backbone of the carboxylic acid bound to Ser-26. A small fraction of ghrelin, ghrelin-28-C10:1, may be modified with a singly unsaturated carboxylic acid.

Amidation of Leu-98 is essential for obestatin activity.

Similarity : Belongs to the motilin family.

Database links : UniProtKB/Swiss-Prot: Q9UBU3.1 

Ghrelin是近年来发现的一种内源性生长激素促分泌剂受体的配体（一种新的生长激素释放肽）。

广泛分布在人中枢神经系统(下丘脑、垂体)和消化系统(胃、肠、胰腺),并被发现拥有多种生物功能,如通过下丘脑刺激食欲、增加胃酸分泌、提高胃肠蠕动等.进而ghrelin和GHS-R在不同器官肿瘤组织中被发现,如垂体瘤、胃癌、肠癌、乳腺癌、甲状腺滤泡状癌,Ghrelin蛋白的种属同源性较高，人、大、小鼠、猪、羊、犬、牛都有存在。

大量研究证明ghrelin能影响不同肿瘤细胞的生长与增殖.其广泛的生物活性为今后肿瘤的诊断、治疗及预后的评估提供了新的研究方向.