ELISA是以免疫学反应为基础，将抗原、抗体体的特异性反应与酶对底物的高效催化作用相结合起来的一种敏感性很高的试验技术。
人RAS癌基因家族成员RAB1A(RAB1A)测定盒是北京方程生物公司的优势产品，2017年买人RAS癌基因家族成员RAB1A(RAB1A)测定盒送好礼*活动火热进行中......
人RAS癌基因家族成员RAB1A(RAB1A)测定盒
Human RAB1A, Member RAS Oncogene Family (RAB1A) ELISA
Enzyme-linked immunosorbent assay (ELISA), also known as an enzyme immunoassay (EIA), is a biochemical technique used mainly in immunology to detect the presence of an antibody or an antigen in a sample. The ELISA has been used as a diagnostic tool in medicine and plant pathology, as well as a quality-control check in various industries. In simple terms, in ELISA, an unknown amount of antigen is affixed to a surface, and then a specific antibody is applied over the surface so that it can bind to the antigen. This antibody is linked to an enzyme, and in the final step a substance is added that the enzyme can convert to some detectable signal, most commonly a colour change in a chemical substrate. Performing an ELISA involves at least one antibody with specificity for a particular antigen. The sample with an unknown amount of antigen is immobilized on a solid support (usually a polystyrene microtiter plate) either non-specifically (via adsorption to the surface) or specifically (via capture by another antibody specific to the same antigen, in a "sandwich" ELISA). After the antigen is immobilized, the detection antibody is added, forming a complex with the antigen. The detection antibody can be covalently linked to an enzyme, or can itself be detected by a secondary antibody that is linked to an enzyme through bioconjugation. Between each step, the plate is typically washed with a mild detergent solution to remove any proteins or antibodies that are not specifically bound. After the final wash step, the plate is developed by adding an enzymatic substrate to produce a visible signal, which indicates the quantity of antigen in the sample. Traditional ELISA typically involves chromogenic reporters and substrates that produce some kind of observable color change to indicate the presence of antigen or analyte. Newer ELISA-like techniques utilize fluorogenic, electrochemiluminescent, and real-time PCR reporters to create quantifiable signals. These new reporters can have various advantages including higher sensitivities and multiplexing.[1][2] In technical terms, newer assays of this type are not strictly ELISAs, as they are not "enzyme-linked" but are instead linked to some non-enzymatic reporter. However, given that the general principles in these assays are largely similar, they are often grouped in the same category as ELISAs.
人RAS癌基因家族成员RAB1A(RAB1A)测定盒操作步骤：1. 编号：将样品对应微孔按序编号，每板应设阴性对照 2 孔、阳性对照 2 孔、空白对照 1孔（空白对照孔不加样品及酶标试剂，其余各步操作相同）2. 加样：分别在阴、阳性对照孔中加入阴性对照、阳性对照 50μl。然后在待测样品孔先加样品稀释液 40μl，然后再加待测样品 10μl。加样将样品加于酶标板孔底部，尽量不触及孔壁，轻轻晃动混匀，3. 温育：用封板膜封板后置 37℃温育 30 分钟。4. 配液：将 30（48T 的 20 倍）倍浓缩洗涤液加蒸馏水至 600ml 后备用5. 洗涤：小心揭掉封板膜，弃去液体，甩干，每孔加满洗涤液，静置 30 秒后弃去，如此重复 5 次，拍干。6. 加酶：每孔加入酶标试剂 50μl，空白孔除外。7. 温育：操作同 3。8. 洗涤：操作同 5。9. 显色：每孔先加入显色剂 A 50μl，再加入显色剂 B 50μl，轻轻震荡混匀，37℃避光显色15 分钟10. 终止：每孔加终止液 50μl，终止反应（此时蓝色立转黄色） 。11. 测定：以空白空调零，450nm 波长依序测量各孔的吸光度（OD 值） 。 测定应在加终止液后 15 分钟以内进行。
人RAS癌基因家族成员RAB1A(RAB1A)测定盒
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