Compositions and methods for detection and isolation of phosphorylated molecules
申请人:Molecular Probes, Inc.
公开号:US07102005B2
公开(公告)日:2006-09-05
The present invention relates to phosphate-binding compounds that find use in binding, detecting and isolating phosphorylated target molecules including the subsequent identification of target molecules that interact with phosphorylated target molecules or molecules capable of being phosphorylated. A binding solution is provide that comprises a phosphate-binding compound, an acid and a metal ion wherein the metal ion simultaneously interacts with an exposed phosphate group on a target molecule and the metal chelating moiety of the phosphate-binding compound forming a bridge between the phosphate-binding compound and a phosphorylated target molecule resulting in a ternary complex. The binding solution of the present invention finds use in binding and detecting immobilized and solubilized phosphorylated target molecules, isolation of phosphorylated target molecules from a complex mixture and aiding in proteomic analysis wherein kinase and phosphatase substrates and enzymes can be identified.
Fura-2FF-based calcium indicator for protein labeling
作者:Agostina A. Ruggiu、Michael Bannwarth、Kai Johnsson
DOI:10.1039/c000158a
日期:——
We describe the synthesis and fluorescence properties of a Fura-2FF-based fluorescent Ca2+ indicator that can be covalently linked to SNAP-tag fusion proteins and retains its Ca2+ sensing ability after coupling to protein.