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整合素αVβ3抗体
产品编号 LM1310R
英文名称 Integrin Alpha V + Beta 3 (CD51+CD61)
中文名称 整合素αVβ3抗体
别 名 CD51 + CD61; CD51; CD61; GP3A; GPIIIa; integrin alpha v; integrin beta 3; intregrin alpha v beta 3; ITGAV; ITGB3; Platelet membrane glycoprotein IIIa; Vitronectin receptor alpha subunit; VNRA; Antigen identified by monoclonal antibody L230; CD51 antigen; CD61 antigen; DKFZp686A08142; Integrin alpha V (vitronectin receptor, alpha polypeptide, antigen CD51); integrin alpha v; Integrin beta 3 (platelet glycoprotein IIIa, antigen CD61); Integrin beta chain beta 3; intregrin alpha v beta 3; ITGAV; MSK8; Platelet glycoprotein IIIa; Platelet membrane glycoprotein IIIa; Vitronectin receptor alpha subunit; Vitronectin receptor subunit alpha.
研究领域 细胞生物 免疫学 信号转导 干细胞 细胞粘附分子
抗体来源 Rabbit
克隆类型 Polyclonal
交叉反应 Human, Mouse, Rat,
产品应用 WB=1:500-2000 ELISA=1:500-1000 IHC-P=1:400-800 IHC-F=1:400-800 Flow-Cyt=1μg/Test 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.
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 Integrin Alpha V + Beta 3:
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 Integrins are integral cell-surface proteins composed of an alpha chain and a beta chain. They are known to participate in cell adhesion as well as cell-surface mediated signalling. Integrins are heterodimeric integral membrane proteins composed of an alpha chain and a beta chain.
CD51 encodes integrin alpha chain V. The I-domain containing integrin alpha V undergoes post-translational cleavage to yield disulfide-linked heavy and light chains, that combine with multiple integrin beta chains to form different integrins. The CD61 protein product is the integrin beta chain beta 3. Integrin beta 3 is found along with the alpha IIb chain in platelets.
Integrin alpha V/beta 3 is a receptor for cytotactin, fibronectin, laminin, matrix metalloproteinase 2, osteopontin, osteomodulin, prothrombin, thrombospondin, vitronectin and von Willebrand factor. Integrin alpha V/beta 3 recognizes the sequence R-G-D in a wide array of ligands. The alpha V integrins are receptors for vitronectin, cytotactin, fibronectin, fibrinogen, laminin, matrix metalloproteinase 2, osteopontin, osteomodulin, prothrombin, thrombospondin and von Willebrand factor. They recognize the sequence R-G-D in a wide array of ligands.
整合素αVβ3为二聚体的跨膜糖蛋白质,可以调节肿瘤细胞在多种细胞外基质蛋白中的粘附和迁移,在被激活的内皮细胞中有较高的表达,并在新生血管生成过程中发挥优势。
整合素αVβ3在细胞外的信号传入细胞内调节细胞生长、改变细胞形态、影响细胞运动, 并在肿瘤侵袭和转移的过程中起重要作用.整合素αVβ3是特异性表达在血管内皮细胞表面的粘附因子。
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。