DENV type 4 PreM/M [GST] (DAG2399)

DENV type 4 PreM/M (aa 6 - 165) [GST], recombinant protein from E. coli Datasheet

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Product Overview
N-terminal GST fusion protein of PreM/M (Dengue virus 4)(a.a. 6-165)
Nature
Recombinant
Tag/Conjugate
GST
Purity
> 95%, based on SDS PAGE
Format
Each vial contains 100 μg of lyophilized protein in PBS with 8M Urea.
Concentration
N/A
Storage
2-8°C short term, -20°C long term
Introduction
Dengue virus (DENV) in one of four serotypes is the cause of dengue fever. It is a mosquito-borne single positive-stranded RNA virus of the family Flaviviridae; genus Flavivirus. All four serotypes can cause the full spectrum of disease. Its genome is about 11000 bases that codes for three structural proteins, capsid protein C, membrane protein M, envelope protein E; seven nonstructural proteins, NS1, NS2a, NS2b, NS3, NS4a, NS4b, NS5; and short non-coding regions on both the 5' and 3' ends. Further classification of each serotype into genotypes often relates to the region where particular strains are commonly found or were first found.
Antigen Description
The DENV prM (membrane) protein, which is important in the formation and maturation of the viral particle, consists of seven antiparallel β-strands stabilized by three disulphide bonds. The glycoprotein shell of the mature DENV virion consists of 180 copies each of the E protein and M protein. The immature virion starts out with the E and prM proteins forming 90 heterodimers that give a spiky exterior to the viral particle. This immature viral particle buds into the endoplasmic reticulum and eventually travels via the secretory pathway to the Golgi apparatus. As the virion passes through the trans-Golgi Network (TGN) it is exposed to low pH. This acidic environment causes a conformational change in the E protein which disassociates it from the prM protein and causes it to form E homodimers. These homodimers lie flat against the viral surface giving the maturing virion a smooth appearance. During this maturation pr peptide is cleaved from the M peptide by the host protease, furin. The M protein then acts as a transmembrane protein under the E-protein shell of the mature virion. The pr peptide stays associated with the E protein until the viral particle is released into the extracellular environment. This pr peptide acts like a cap, covering the hydrophobic fusion loop of the E protein until the viral particle has exited the cell.
Keywords
membrane glycoprotein precursor; Dengue virus 1; Flavivirus; PreM/M; PreM; DENV prM; DENV prM (membrane) protein; DV1 PreM/M; Dengue Virus 1 PreM/M Protein

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