The green fluorescent protein (GFP) of Aequorea victoria is frequently fused to other proteins to serve as a reporter for gene expression or the localization of proteins in vivo. We report that when a GFP fusion protein is translated in vitro under standard conditions, the GFP portion folds efficiently and becomes fluorescent. This provides a convenient method for monitoring in vitro translatio...

The effect of the protein environment on the electronic structure of the green fluorescent protein (GFP) chromophore is investigated by QM/MM (quantum mechanics/molecular mechanics) calculations. The protein has very small effect on the excitation energy of the bright absorbing and the lowest triplet states of the anionic GFP chromophore, deprotonated 4-hydroxybenzylidene-2,3-dimethylimidazolin...

Cysteine proteinases (thiol) carry out diverse and critical functions in plants through their ability to hydrolyze peptide bonds target proteins. Here, we cloned a cysteine proteinase gene designated VaCP17 from highly cold-resistant wild Vitis amurensis accession ‘Shuangyou’, then its potential function cold resistance was investigated. The results showed that the CDS of is 1404 bp, encoding 4...

Defects in glucagon action can cause hyperplasia of islet α-cells, however, the underlying mechanisms remain largely to be elucidated. Mice homozygous for a glucagon-GFP knock-in allele (Gcg(gfp/gfp) ) completely lack proglucagon-derived peptides and exhibit hyperplasia of GFP-positive α-like cells. Expression of the transcription factor, aristaless-related homeobox (ARX), is also increased in ...

Green fluorescent protein (GFP) from the jellyfish Aequorea victoria, its GFP variants (Aequorea GFPs), and more recently the novel GFP-like proteins from Anthozoa have greatly advanced our technologies for fluorescently labeling cells, organelles, and proteins. It has been shown, however, that some GFP-like proteins have a tendency to oligomerize and aggregate. Transfection of GFP-like protein...

Green fluorescent protein (GFP) is a 27 kD protein consisting of 238 amino acid residues [1]. GFP was first identified in the aquatic jellyfish Aequorea victoria by Osamu Shimomura et al. in 1961 while studying aequorin, a Ca2+-activated photoprotein.Aequorin and GFP are local‐ ized in the light organs of A. victoria and GFP was accidentally discovered when the energy of the blue light emitted ...

We have generated a recombinant Newcastle disease virus (NDV) that expresses the green fluorescence protein (GFP) in infected chicken embryo fibroblasts (CEFs). This virus is interferon (IFN) sensitive, and pretreatment of cells with chicken alpha/beta IFN (IFN-alpha/beta) completely blocks viral GFP expression. Prior transfection of plasmid DNA induces an IFN response in CEFs and blocks NDV-GF...

Abstract Background Maize dwarf mosaic virus (MDMV), a member of the genus Potyvirus , infects maize and is non-persistently transmitted by aphids. Several plant viruses have been developed as tools for gene expression silencing in plants. The capacity MDMV both were examined. Results Infectious clones an Ohio isolate MDMV, OH5, obtained, engineered only, simultaneous marker virus-induced (VIGS...

This article is based on an interview between Prof. Martin Chalfie and Noa Segev. Scientists investigate things by observation. They look at a phenomenon that interests them try to understand it, using the most advanced tools they have. It often challenging for scientists see measure what want study, because go beyond had been previously seen. The development of modern imaging techniques has al...