Probe for visualizing phosphorylation/dephosphorylation of...

Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Recombinant dna technique included in method of making a...

Reexamination Certificate

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C435S194000, C435S007700, C435S320100, C435S325000, C530S300000, C530S303000, C530S350000, C530S387100

Reexamination Certificate

active

10296313

ABSTRACT:
As a versatile method of detecting and assaying intracellular protein phosphorylation and dephosphorylation that enables nondestructive monitoring as well as spatial and temporal analysis for living cells, animal bodies, plant bodies and the like, a probe for imaging protein phosphorylation and dephosphorylation, which comprises a tandem fusion unit composed of a substrate domain that contains a phosphorylation and dephosphorylation site, a linker sequence and a phosphorylation recognition domain, interposed between a donor chromophore and an acceptor chromophore that cause fluorescence resonance energy transfer, is used.

REFERENCES:
patent: 6441140 (2002-08-01), Comb et al.
patent: 11-56398 (1999-03-01), None
Sato et al., A fluorecent Indicator for Tyrosine Phsophorylation-Based Insulin Signaling Pathway, Anal. Chem. 71, 3948-3954 (1999).
Nagai et al.,, Nature Biotechnology, vol. 18, 313-316 (Mar. 2000).
Hideyoshi Higashi et al., “Imaging of Ca2+/calmodulin-dependent protein kinase II activity in hippocampal neurones”, Membrane and Cellular Biophysics and Biochemistry, vol. 7, No. 15-17, pp. 2695-2700, Nov. 1996.
Motonobu Anai, et al., “Different Subcellular Distribution and Regulation of Expression of Insulin Receptor Substrate (IRS)-3 from Those of IRS-1 and IRS-2”, The Journal of Biological Chemistry, vol. 273, No. 45, pp. 29686-29692, Nov. 6, 1998.

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