background: the aim of this study was to clone pparγ1 cdna in an appropriate mammalian expression vector, with a chimeric cdna form, encompassing pparγ with enhanced green fluorescent protein (egfp) cdna. this recombinant plasmid will be used for further analyses to investigate the molecular mechanism of pparγ1 for neural differentiation process. moreover, the nuclear localization of the pparγ1...

background: rna interference (rnai) is a phenomenon uses double-stranded rna (dsrna) to specifically inhibit gene expression. the non-specific silencing caused by interferon response to dsrna in mammalian cells limits the potential of utilizing rnai to study gene function. duplexes of 21-nucleotide short interfering dsrna (sirna) inhibit gene expression by rnai. in some organisms, sirna can als...

Enhanced Green Fluorescent Protein (eGFP) shows much stronger fluorescence than its ancestor, (GFP), thus has been widely applied as a reporter for biomedical research. In this study, we reported the expression of synthetic codon optimized gene encoding eGFP in Escherichia coli (E. coli). The was cloned into two vectors, pQE30 and pColdII resulting recombinant vectors were transformed E. M15 BL...

We have shown that the intracellular pH of a single HeLa cell expressing the enhanced green fluorescent protein (EGFP) can be imaged using the fluorescence lifetime of EGFP, which can be interpreted in terms of the pH-dependent ionic equilibrium of the p-hydroxybenzylidene-imidazolidinone structure of the chromophore of EGFP.

A functional calcineurin A fusion to enhanced green fluorescent protein (EGFP), CnaA-EGFP, was expressed in the Aspergillus fumigatus DeltacnaA mutant. CnaA-EGFP localized in actively growing hyphal tips, at the septa, and at junctions between the vesicle and phialides in an actin-dependent manner. This is the first study to implicate calcineurin in septum formation and conidiophore development...

The fluorophore in green fluorescent protein (GFP) is localized in a highly constrained environment, protected from the bulk solvent by the barrel-shaped protein matrix. We have used the wavelength-selective fluorescence approach (red edge excitation shift, REES) to monitor solvent (environment) dynamics around the fluorophore in enhanced green fluorescent protein (EGFP) under various condition...

BACKGROUND & OBJECTIVE Cell-penetrating peptides, a class of small cationic peptides, could mediate macromolecules transduction into many cell lines. This study was to explore the penetrating ability of PEP-1 in the transduction of enhanced green fluorescent protein (EGFP) into human colorectal cancer cell line SW480. METHODS Two prokaryotic expression plasmids pET15b-EGFP and pET15b-PEP-1-EG...

Fluorescent retroviral envelope (Env) proteins were developed for direct visualization of viral particles. By fusing the enhanced green fluorescent protein (eGFP) to the N terminus of the amphotropic 4070A envelope protein, extracellular presentation of eGFP was achieved. Viruses incorporated the modified Env protein and efficiently infected cells. We used the GFP-tagged viruses for staining re...

Fluorescent proteins have become essential tools in molecular and biological applications. Here, we present a novel fluorescent protein isolated from warm water coral, Cyphastrea microphthalma. The protein, which we named vivid Verde fluorescent protein (VFP), matures readily at 37 degrees C and emits bright green light. Further characterizations revealed that VFP has a tendency to form dimers....

Reporters based on the green fluorescent protein (GFP) from the jellyfish Aequorea victoria and GFP-like proteins from other marine organisms provide valuable tools to monitor gene transfer and expression noninvasively in living cells. Stable cell lines were generated from the Sp2/0-Ag14 hybridoma that express up to three spectral enhanced versions of GFP, the enhanced cyan fluorescent protein ...