规格: | 98% |
分子量: | 384 |
包装 | 价格(元) |
500ug | 电议 |
1mg | 电议 |
5mg | 电议 |
Background:
3-Bromotyrosine-13C9,15N is intended for use as an internal standard for the quantification of 3-bromotyrosine by GC- or LC-MS. 3-Bromotyrosine is a product of protein oxidation found after activation of eosinophils during an allergic response. It has been used as a marker of eosinophil peroxidase-induced protein oxidation in vitro and in vivo. In addition to its production in eosinophils, 3-bromotyrosine is found at 5-fold higher levels in peritoneal exudate from mice infected with K. pneumoniae compared with uninfected animals, suggesting neutrophils release higher levels of oxidized products during inflammation. In a human study, 3-bromotyrosine was increased in allergen-challenged lung samples from subjects with allergen-induced asthma.