Design and Synthesis of Photocleavable Biotinylated-Dopamine with Polyethyleneoxy Photocleavable Linkers
摘要:
Previously, we reported the synthesis of a biotin dopamine conjugate (Btn-DA) with a photocleavable 8-quinolinyl benzenesulfonate (QB) linker for the isolation of an intact complex of DA and anti-DA antibody (IgG(1)) (DA-IgG(1) complex). In this work, we synthesized a photocleavable Btn-DA conjugate with a polyethyleneoxy linker to improve the complexation efficiency and the recovery yields of DA-IgG(1) complex. The results of QCM, ELISA, and Western blot analyses indicate that the introduction of polyethyleneoxy linkers improved the efficiency of DA-IgG(1) complexation.
Cofactor Analogues as Active Site Probes in Lysine Acetyltransferases
作者:Roman P. Simon、Tobias Rumpf、Vaida Linkuviene、Daumantas Matulis、Asifa Akhtar、Manfred Jung
DOI:10.1021/acs.jmedchem.8b01887
日期:2019.3.14
thereby providing a dynamic control mechanism of protein function. Because of their major involvement in cell development and homeostasis, small-molecule modulators of KAT activity are urgently needed to assess their therapeutic potential and for probing their underlying biology. Recent advances in the field suggest that targeting the cofactor binding site represents a promising strategy for identifying
Bifunctional linkers are provided that comprise a photocleavable moiety flanked by two different amine reactive moieties. In some embodiments the photocleavable moiety is a dimethoxynitrobenzyl moiety. In other embodiments the photocleavable moiety is 8-bromo-7-hydroxyquinoline. In other embodiments the photocleavable moiety is nitrodibenzofuran. In other embodiments the photocleavable moiety is 6-bromo-7-hydroxycoumarin-4-ylmethyl. The linkers find use in synthetic methods, including the generation of photocleavable oligonucleotides, e.g. caged morpholinos.
Bifunctional linkers are provided that comprise a photocleavable moiety flanked by two different amine reactive moieties. In some embodiments the photocleavable moiety is a dimethoxynitrobenzyl moiety. In other embodiments the photocleavable moiety is 8-bromo-7-hydroxyquinoline. In other embodiments the photocleavable moiety is nitrodibenzofuran. In other embodiments the photocleavable moiety is 6-bromo-7-hydroxycoumarin-4-ylmethyl. The linkers find use in synthetic methods, including the generation of photocleavable oligonucleotides, e.g. caged morpholinos.