pDsRed-Monomer-N In-Fusion Ready Vector

Description

pDsRed-Monomer-N In-Fusion Ready Vector encodes DsRed-Monomer, a monomeric mutant of theDiscosomasp. red fluorescent protein. The vector is prelinearized to enable directional In-Fusion cloning of PCR fragments onto the 5 end of the DsRed-Monomer-encoding gene without further restriction digests. Sequences complementary to the vector sequences flanking the site of linearization need to be incorporated at the 5 ends of the PCR primers see PT3865-2 . The gene of interest is expressed as an N-terminal fusion to DsRed-Monomer in mammalian cells. The fluorescent protein coding sequence in this construct has been human codon-optimized for efficient expression and enhanced brightness in mammalian cells. Our products are to be used forResearch Use Only. They may not be used for any other purpose, including, but not limited to, use in humans, therapeutic or diagnostic use, or commercial use of any kind. Our products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without our prior written approval. Back Back DsRed-Monomer is a monomeric protein.Panel A. Recombinant DsRed-Express and DsRed-Monomer fluorescent proteins 100 mug were analyzed by FPLC gel filtration chromatography. Overall absorbance A280 and chromophore excitation A557 of the eluted material were monitored simultaneously. DsRed-Monomer elutes from the column at a retention time 39 min corresponding to a molecular weight of 28 kDa. The calculated molecular weight of DsRed-Monomer is 26.8 kDa. DsRed-Express is a tetrameric protein that elutes at an earlier retention time 33 min corresponding to a molecular weight of 89 kDa.Panel B. Pseudonative gel analysis of proteins. The oligomeric structure of proteins is preserved during SDS PAGE analysis if samples are kept at 4C and not boiled prior to loading on a gel. Boiled and unboiled recombinant proteins 7.5 mug were separated by SDS PAGE electrophoresis 12 % acrylamide . In both the boiled denatured and unboiled nondenatured samples, DsRed-Monomer fluorescent protein runs as a uniform band of 30 kDa due to its monomeric structure. The unboiled nondenatured DsRed-Express runs at a much higher molecular weight than its boiled denatured counterpart due to its tetrameric structure. Back Back Cloning of PCR-amplified alpha-actinin directly into four different In-Fusion Ready prelinearized DsRed-Monomer and AcGFP1 vectors.The gene for alpha-actinin 1,600 bp was amplified by PCR and immediately cloned into four different prelinearized DsRed-Monomer N1/C1 and AcGFP1 N1/C1 vectors using the In-Fusion cloning method. All four recombinant vectors were transfected into HeLa cells using a lipid-based transfection agent. 36 hr posttransfection, cells were fixed using 4 % paraformaldehyde and visualized using a Zeiss Axioscope fluorescence microscope.Panel A. Alpha-Actinin-AcGFP1-C1.Panel B. Alpha-Actinin-AcGFP-N1.Panel C. Alpha-Actinin-DsRed-Monomer-C1.Panel D. Alpha-Actinin-DsRed-Monomer-N1.