Thyroglobulin (Tg-FSP) Heavy
Ref. 3D-CRB1301686
| 25nMol | 452,00 € |
Informação sobre produto
- H-FSPDDSAGASALLR^-OH
Serum levels of thyroglobulin (Tg) is considered a valuable measurement for quantitively evaluating thyroid cancer treatment efficacy. Immunoassays are commonly used for Tg level evaluation but return many false negatives. This is due to a large proportion of patients expressing anti-Tg antibodies (TgAb), which outcompete the reagent antibodies for Tg.Liquid chromatography-tandem mass spectrometry (LC-MS/MS) is potentially better at quantification of Tg as TgAb should less influence it. Tg digestion with trypsin yields the specific peptide Tg-FSP peptide (FSPDDSAGASALL) that is a reliable target for LC-MS/MS and unique to Tg.The Tg-FSP heavy arginine residue at position 14 is isotopically labelled with carbon-13 (9) and nitrogen-15 (1), giving this peptide a mass increase of 10 compared to the unlabelled peptide. This will allow absolute quantification applications such as quantitative proteomics, the quantification of complex protein mixtures at very low concentrations, or NMR studies.
Propriedades químicas
Consulta técnica sobre: 3D-CRB1301686 Thyroglobulin (Tg-FSP) Heavy
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