抗体来源 Mouse
克隆类型 monoclonal
克 隆 号 A4
交叉反应 Human
产品类型 一抗
研究领域 肿瘤
蛋白分子量 predicted molecular weight: 65kDa
性 状 Lyophilized or Liquid
免 疫 原 AFP protein
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
甲胎蛋白单克隆抗体(检测)产品应用 WB=1:100-500 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.
产品介绍 Alpha 1 Fetoprotein is a major plasma protein produced by the yolk sac and the liver during fetal life. Alpha fetoprotein expression in adults is often associated with hepatoma or teratoma. However, hereditary persistance of alpha-fetoprotein may also be found in individuals with no obvious pathology. The protein is thought to be the fetal counterpart of serum albumin, and the alpha fetoprotein and albumin genes are present in tandem in the same transcriptional orientation on chromosome 4. Alpha fetoprotein is found in monomeric as well as dimeric and trimeric forms, and binds copper, nickel, fatty acids and bilirubin. The level of alpha fetoprotein in amniotic fluid is used to measure renal loss of protein to screen for spina bifida and anencephaly. Expression has been documented in human adrenal, liver, ovary, testis, and pancreas. ESTs have been isolated from normal human brain, liver/spleen, embryo and uterus tissue libraries.
Function : Binds copper, nickel, and fatty acids as well as, and bilirubin less well than, serum albumin. Only a small percentage (less than 2%) of the human AFP shows estrogen-binding properties.
Subunit : Dimeric and trimeric forms have been found in addition to the monomeric form.
Subcellular Location : Secreted.
Tissue Specificity : Plasma. Synthesized by the fetal liver and yolk sac.
Similarity : Belongs to the ALB/AFP/VDB family.
Contains 3 albumin domains.
AFP是由胚胎卵黄囊细胞,胚胎肝细胞和胎儿肠道细胞合成的一种糖蛋白。主要用于原发性或转移性肝细胞癌、肝样胃癌和性腺或性腺外某些生殖细胞肿瘤(如内胚窦瘤)的诊断和鉴别诊断。
AFP敏感度较低,特异性强,大约60%左右的肝细胞肝癌阳性,在低分化肿瘤中常呈阳性表达。
该抗体与bsm-1621M(包被)(Anti-Alpha Fetoprotein)配对使用;主要用于ELISA试剂盒,胶体金试剂条制备生产都很好。大量订购可来电商议。
纯度:在实验的任何阶段,确定抗体溶液纯度的最简单方法是取一部分样本进行SDS-PAGE电泳。凝胶可用考马斯亮蓝染色(灵敏度为0.1—0.5ug/带)或银染(灵敏度1~l0ug/带)。
定量:如果抗体还不纯,有一个快捷的定量方法,即通过SDS-PAGE电泳分离出轻、重链,然后和已知的标准染色带比较。如果需要分析许多样本,用免疫测定法对抗体定量较容易。如果抗体是经过纯化的,可通过测蛋白总量代替上述两种方法,有一简单的方法,即紫外吸收法。甲胎蛋白单克隆抗体(检测)的量可通过测280nm处的吸收值来测(10D大致相当于0.75mg/m1的纯化抗体)。
抗原结合活性:一般说来,纯化方法不会引起抗原结合活性的改变。用蛋白G或蛋白A树脂很少导致抗体活性丧失。然而,如果最终抗体产物的作用不如原来所预料的好,检测抗体纯化过程所丢失的活性就极为重要。用一系列滴定法比较纯化的抗体和其原材料的活性,以标定每一步中的总抗体量,这将有助于较好的估计通过纯化所丢失的活性。