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Tyrosine specific sequential labeling of proteins.

Abstract：

:We report (a) on the synthesis of a long-wavelength fluorescent coumarin containing an allyloxy acetate moiety, (b) the synthesis of two linkers containing an allyloxy acetate and an alkyne or azide function, respectively, and (c) the selective modification human serum albumin by a sequential method involving Pd(II) catalyzed modification of the phenolic side chain of tyrosine residues with an alkyne bearing linker and a subsequent azide-alkyne click reaction with an azide functionalized long-wavelength emitting coumarin dye. The method is likely to be applicable to various kinds of azido-modified fluorophores, and the Pd(II)-catalyzed modification of the tyrosines may also be used to introduce other kinds of tags. With these reagents, tyrosine specific modulation of proteins and peptides becomes possible either directly or in a sequential manner.

journal_name

Bioorg Med Chem Lett

journal_title

Bioorganic & medicinal chemistry letters

authors

Cserép GB,Herner A,Wolfbeis OS,Kele P

doi

10.1016/j.bmcl.2013.09.002

subject

Has Abstract

pub_date

2013-11-01 00:00:00

pages

5776-8

issue

21

eissn

0960-894X

issn

1464-3405

pii

S0960-894X(13)01065-2

journal_volume

23

pub_type

杂志文章

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