Key features and details
- Expression system: Escherichia coli
- Purity: > 80% SDS-PAGE
- Tags: His tag N-Terminus
- Suitable for: WB, SDS-PAGE
Product nameRecombinant E. coli GFP protein (His tag)
See all GFP proteins and peptides
Purity> 80 % SDS-PAGE.
The purity was determined to be 80% by densitometry
Expression systemEscherichia coli
Protein lengthFull length protein
Predicted molecular weight39 kDa including tags
Amino acids1 to 238
TagsHis tag N-Terminus
Our Abpromise guarantee covers the use of ab119740 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
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Preparation and Storage
Stability and Storage
Shipped on dry ice. Upon delivery aliquot and store at -80ºC. Avoid freeze / thaw cycles.
Preservative: 1.02% Imidazole
Constituents: 0.002% PMSF, 0.71% Sodium phosphate, 0.005% DTT, 25% Glycerol (glycerin, glycerine), 1.75% Sodium chloride
- Green fluorescent protein
RelevanceFunction: Energy-transfer acceptor. Its role is to transduce the blue chemiluminescence of the protein aequorin into green fluorescent light by energy transfer. Fluoresces in vivo upon receiving energy from the Ca2+ -activated photoprotein aequorin.
Subunit structure: Monomer.
Tissue specificity: Photocytes.
Post-translational modification: Contains a chromophore consisting of modified amino acid residues. The chromophore is formed by autocatalytic backbone condensation between Ser-65 and Gly-67, and oxidation of Tyr-66 to didehydrotyrosine. Maturation of the chromophore requires nothing other than molecular oxygen.
Biotechnological use: Green fluorescent protein has been engineered to produce a vast number of variously colored mutants, fusion proteins, and biosensors. Fluorescent proteins and its mutated allelic forms, blue, cyan and yellow have become a useful and ubiquitous tool for making chimeric proteins, where they function as a fluorescent protein tag. Typically they tolerate N- and C-terminal fusion to a broad variety of proteins. They have been expressed in most known cell types and are used as a noninvasive fluorescent marker in living cells and organisms. They enable a wide range of applications where they have functioned as a cell lineage tracer, reporter of gene expression, or as a measure of protein-protein interactions. Can also be used as a molecular thermometer, allowing accurate temperature measurements in fluids. The measurement process relies on the detection of the blinking of GFP using fluorescence correlation spectroscopy.
Sequence similarities: Belongs to the GFP family.
Biophysicochemical properties: Absorption: Abs(max)=395 nm
Exhibits a smaller absorbance peak at 470 nm. The fluorescence emission spectrum peaks at 509 nm with a shoulder at 540 nm.
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
ab119740 has been referenced in 1 publication.
- Erdene-Ochir E et al. Identification and characterisation of the novel endogenous promoter HASP1 and its signal peptide from Phaeodactylum tricornutum. Sci Rep 9:9941 (2019). PubMed: 31289300