Cloning and investigating GFP (green fluorescent protein) allowing higher expression in Bacillus subtilis

Expression and Secretion of Cyan Fluorescent Protein (CFP) in B. subtilis using the Chitinase Promoter from Bacillus pumilus SG2

Background: Improved cyan fluorescent protein (ICFP) is a monochromic, green fluorescent protein (GFP) derivative produced by Aequorea macrodactyla in a process similar to GFP. This protein has strong absorption spectra at wavelengths 426-446 nm. ICFP can be used in cell, organelle or intracellular protein labeling, investigating the protein-protein interactions as well as assessing the promote...

Endogenous green fluorescent protein (GFP) in amphioxus.

Discovery of Green Fluorescent Protein, Gfp

I discovered the green fluorescent protein GFP from the jellyfish Aequorea aequorea in 1961 as a byproduct of the Ca-sensitive photoprotein aequorin (Shimomura et al., 1962; Johnson et al., 1962), and identified its chromophore in 1979 (Shimomura, 1979). GFP was a beautiful protein but it remained useless for the next 30 years after the discovery. My story begins in 1945, the year the city of N...

MOLECULAR CLONING AND EVALUATION OF WILD PROMOTER IN EXPRESSION OF BACILLUS SPHAERICUS PHENYLALANINE DEHYDROGENASE GENE IN BACILLUS SUBTILIS CELLS

To evaluate the role of wild promoter of L-phenylalanine dehydrogenase (PheDH) gene, referred to as pdh, from Bacillus sphaericus in expression, cloning of pdh gene in Bacillus subtilis was performed. The whole pdh gene was cloned in pHY300PLK shuttle vector and amplified, construct (pHYDH) then transformed in B. subtilis ISW1214 and E. coli JM109. The pdh endogenous promoter presented no effec...

Construction of chimeric protein 3M2e.FliC and its immunoinformatics analyses and expression in Bacillus subtilis

Introduction: Influenza A virus causes unpredictable epidemics and pandemics by creating antigenic variations. With the appearance of each new strain, rapid emergency countermeasures are taken against this new strain. Hence, designing an applicable and cross protective strategy to counter this virus is of great importance. To achieve this, choosing conserved antigenic regions in influenza virus...