Assay for proteins and polypeptides
    5.
    发明授权
    Assay for proteins and polypeptides 失效
    测定蛋白质和多肽

    公开(公告)号:US4219337A

    公开(公告)日:1980-08-26

    申请号:US900693

    申请日:1978-04-27

    IPC分类号: G01N33/68 G01N33/16 G01N21/02

    CPC分类号: G01N33/6839

    摘要: An assay for proteins or polypeptides in solution using a reagent of Coomassie Brilliant Blue G250 dye in perchloric or hydrochloric acid. Upon mixture of the acidic reagent with a protein sample, the dye couples with the protein and undergoes a color change, following which the absorbance of the mixture can be measured to provide a quantitative analysis for the protein in the sample; the same procedure may be used for sample solutions containing polypeptides. Proteins and polypeptides with molecular weights above about 2000-3000 may be assayed.

    摘要翻译: 使用考马斯亮蓝G250染料在高氯酸或盐酸中的溶液中的蛋白质或多肽的测定。 当酸性试剂与蛋白质样品混合时,染料与蛋白质偶联并发生颜色变化,随后可以测量混合物的吸光度,以提供样品中的蛋白质的定量分析; 相同的程序可用于含有多肽的样品溶液。 可以测定分子量大于约2000-3000的蛋白质和多肽。