Probe molecule equipped with boronic acid moiety as a reversible cross-linking group improves its binding affinity
摘要:
Syntheses of biotinylated probe molecules of L-glutathione (GSH) equipped with boronic acid moiety and evaluation of their binding affinities against glutathione-S-transferase (GST) were described. It revealed that the presence of boronic acid moiety in an appropriate position enhances binding affinity of GSH probe toward GST probably by forming a reversible cross-link. Among prepared, the boronate-containing probe 8b exhibited the highest recovering ability of GST from Escherichia coli cell lysate. (C) 2010 Elsevier Ltd. All rights reserved.
Probe molecule equipped with boronic acid moiety as a reversible cross-linking group improves its binding affinity
摘要:
Syntheses of biotinylated probe molecules of L-glutathione (GSH) equipped with boronic acid moiety and evaluation of their binding affinities against glutathione-S-transferase (GST) were described. It revealed that the presence of boronic acid moiety in an appropriate position enhances binding affinity of GSH probe toward GST probably by forming a reversible cross-link. Among prepared, the boronate-containing probe 8b exhibited the highest recovering ability of GST from Escherichia coli cell lysate. (C) 2010 Elsevier Ltd. All rights reserved.
A PCP pincer palladium-complex-bound norvaline, Boc-l-[Pd]Nva-OMe, was synthesized and fully characterized by NMR, FT-ICR-MS, and X-ray crystallography. Selective N- and C-terminus transformations of Boc-l-[Pd]Nva-OMe were performed by conventional deprotection-condensation procedures to afford lipophilic palladium-bound norvaline derivatives without metal detachment. The N-/C-bisfunctionalized palladium-bound norvaline showed self-assembly properties, as evidenced by supramolecular gel formation. The catalytic activity of the supramolecular gel was assessed in the 1,4-conjugate addition of phenylboronic acid.