Various biodegradable polyglutamate-amino acids comprising recurring units of the general formulae (I) and (II) are prepared. Such polymers are useful for variety of drug, biomolecule and imaging agent delivery applications.
Phosphorylation State-Responsive Lanthanide Peptide Conjugates: A Luminescence Switch Based on Reversible Complex Reorganization
作者:Matthew S. Tremblay、Qing Zhu、Angel A. Martí、Joanne Dyer、Marlin Halim、Steffen Jockusch、Nicholas J. Turro、Dalibor Sames
DOI:10.1021/ol060614u
日期:2006.6.1
tryptophan residue and a DTPA chelate capable of binding Tb(3+). We propose a mechanistic model for the luminescence enhancement based on the interconversion of monomeric and dimeric lanthanide species, which is affected by the phosphorylation state of the serine or tyrosine residue. The optical switch reports effectively on phosphatase-catalyzed dephosphorylation in vitro.
Stevens rearrangement as a tool for the structural modification of polyaminopolycarboxylic ligands
作者:Giovanni B. Giovenzana、Daniela Imperio、Luciano Lattuada、Fulvio Uggeri
DOI:10.1039/c0ob00909a
日期:——
Polyaminopolycarboxylic acids are a well known class of ligands employed for metal ion complexation. Despite the large commercial availability, reports of their use as substrates for direct structural modifications are rare. Herein we report a simple and efficient protocol for the preparation of substituted polyaminopolycarboxylic ligands relying on a one-pot N-alkylation–Stevens rearrangement cascade.
Various biodegradable polyglutamate-amino acids comprising recurring units of the general Formulae (I) and (II) are prepared. Such polymers are useful for variety of drug, biomolecule and imaging agent delivery applications.