EK-6390 小鼠转铁蛋白（TF）ELISA试剂盒Mouse Transferrin (Tf) ELISA Kit, 96 tests, Quantitative
产品介绍：
The Mouse Transferrin ELISA kit is based on the binding of mouse transferrin in samples to two antibodies, one immobilized on the microtiter wells, and the other
conjugated to horseradish peroxidase (HRP) enzyme. After a washing step, chromogenic substrate is added and color is developed by the enzymatic reaction of
HRP on the TMB substrate, which is directly proportional to the amount of transferrin present in the sample. Stopping Solution is added to terminate the reaction, and absorbance at 450nm is then measured using an ELISA microtiter well reader. The concentration of transferrin in samples and control is calculated from a curve of standards containing known concentrations of transferrin.
ELISA的基础是抗原或抗体的固相化及抗原或抗体的酶标记。结合在固相载体表面的抗原或抗体仍保持其免疫学活性，酶标记的抗原或抗体既保留其免疫学活性，又保留酶的活性。在测定时，受检标本（测定其中的抗体或抗原）与固相载体表面的抗原或抗体起反应。用洗涤的方法使固相载体上形成的抗原抗体复合物与液体中的其他物质分开。再加入酶标记的抗原或抗体，也通过反应而结合在固相载体上。此时固相上的酶量与标本中受检物质的量呈一定的比例。加入酶反应的底物后，底物被酶催化成为有色产物，产物的量与标本中受检物质的量直接相关，故可根据呈色的深浅进行定性或定量分析。

相关背景介绍：

转铁蛋白又名运铁蛋白 transferrin，TRF，siderophilin）是血浆中主要的含铁蛋白质，负责运载由消化管吸收的铁和由红细胞降解释放的铁。以TRF-Fe3+的复合物形式进入骨髓中，供成熟红细胞的生成。TRF分子量约7.7万，为单链糖蛋白，含糖量约6%。TRF可逆地结合多价离子，包括铁、铜、锌、钴等。每一分子TRF可结合两个三价铁原子。TRF主要由肝细胞合成，半衰期为7天。血浆中TRF的浓度受铁供应的调节，在缺铁状态时，血浆TRF浓度上升，经铁有效后恢复到正常水平。