Radiolabeled biotin amides from triazenyl precursors: Synthesis, binding, and in-vivo properties
作者:Zbigniew P. Kortylewicz、Janina Baranowska-Kortylewicz、S. James Adelstein、Alice D. Carmel、Amin I. Kassis
DOI:10.1002/jlcr.2580341203
日期:1994.12
0.034 ± 0.006 hr1. Blood clearance studies and the lack of thyroid uptake indicated that this compound was not deiodinated in vivo and behaved in circulation much like native biotin. This aryltriazene precursor method is suitable for labeling with short-lived radiohalides. It can be used to produce no-carrier-added derivatives of biotin for use in biologic studies and assays involving avidin or streptavidin
N-(4-[127/125/123l]碘苄基)生物素酰胺4a-4c的合成通过N-[4-(3',3'-二甲基三氮烯基)苄基)生物素酰胺与碘化钠的直接分解进行描述了 CF3COOH 的存在。以这种方式碘化的生物素与抗生物素蛋白 (Kd = 2.84 ± 0.45 × 10−15 M, n = 3.9 ± 0.6) 形成稳定的复合物,其在过量天然生物素存在下以 0.034 ± 0.006 hr1 的速率常数解离。血液清除研究和甲状腺摄取不足表明该化合物在体内未脱碘,并且在循环中的表现与天然生物素非常相似。这种芳基三氮烯前体方法适用于用短寿命放射性卤化物进行标记。它可用于生产无载体添加的生物素衍生物,用于涉及抗生物素蛋白或链霉抗生物素蛋白的生物学研究和测定。