Fluorescent kabiramides: new probes to quantify actin in vitro and in vivo.
Bioconjug Chem
; 16(6): 1382-9, 2005.
Article
em En
| MEDLINE
| ID: mdl-16287234
ABSTRACT
We present the design, synthesis, and biochemical and spectroscopic characterization of five functional fluorescent conjugates of kabiramide C (KabC), a small molecule biomimetic of gelsolin. The tetramethylrhodamine (TMR), rhodol green (RG), IC5, dapoxyl (DAP), and fluorescein diester (FDE) conjugates of KabC bind specifically to actin at the barbed end in a 11 complex. These probes are shown to function in an indistinguishable manner to the unmodified KabC. Various modalities of the fluorescence emission of these KabC probes, including fluorescence anisotropy and fluorescence resonance energy transfer, are used for the development of assays for the rapid determination of G-actin concentration in solution. The TMR-KabC and FDE-KabC probes are cell permeable and provide unique imaging information on the distribution and dynamics of actin filament within living cells.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Oxazóis
/
Actinas
/
Corantes Fluorescentes
Limite:
Animals
Idioma:
En
Revista:
Bioconjug Chem
Assunto da revista:
BIOQUIMICA
Ano de publicação:
2005
Tipo de documento:
Article
País de afiliação:
Tailândia