gcu-copper-peptide The Gaussia luciferase signal peptide is a critical component for understanding and optimizing the secretion of this highly luminescent enzyme.Directed molecular evolution reveals Gaussia luciferase ... Gaussia luciferase (GLuc), derived from the marine copepod *Gaussia princeps*, is widely utilized in various biological assays due to its bright luminescence and rapid kinetics.Directed molecular evolution reveals Gaussia luciferase ... The efficiency of its synthesis and secretion in heterologous systems, particularly in mammalian cells, is significantly influenced by the presence and nature of its signal peptide.
Research has consistently demonstrated that the effectiveness of signal peptides in mediating protein secretion is a crucial factor. Studies have explored various signal peptides, including those from human albumin and human interleukin-2 (IL-2), and found them to be less efficient compared to the native Gaussia luciferase signal peptide for secretion in certain contexts. This highlights the importance of using the appropriate signal sequence for optimal results.作者:Y Adapted from Nakajima—In both of these examples, the secretionsignalwas contributed by the fusion partner. In research performed at NEB, scientists usedGaussia Luciferase... The signal peptide of Gaussia luciferase, typically comprising the first 17 amino acids, acts as a targeting sequence, directing the nascent polypeptide chain to the endoplasmic reticulum for translocation and subsequent secretion.
The sequence of this signal peptide has been a subject of investigation, with researchers identifying that variations or modifications can impact secretion levels. For instance, the signal peptide derived from Gaussia luciferase (GLUC) may encode a peptide with high sequence identity to specific reference sequences, such as SEQ ID NO: 1.Analysis of the genesequenceindicates a secretorysignalthat functions in both prokaryotes and eukaryotes. Most importantly,Gaussia luciferaseis ... Furthermore, the Gaussia luciferase signal has been shown to be functional in both prokaryotic and eukaryotic systems, underscoring its versatility.
The scientific literature frequently references the Gaussia luciferase signal peptide in the context of protein expression and secretion studies. For example, the level of synthesis and secretion of Gaussia princeps luciferase in transfected CHO cells is heavily dependent on the choice of signal peptide. This dependency has led to the development of various strategies to improve protein secretion, including the identification of improved signal peptides for heterologous expression. These efforts often involve screening for signal peptides that exploit the properties of Gaussia luciferase as a reporter作者:V Gedi·2024·被引用次数:1—Gaussia luciferase(GLuc) is the preeminent secreted luciferase widely used in cell-based reporter assays. By employingsequence-guided ....
Beyond its role in secretion, the Gaussia luciferase signal peptide also contributes to the overall characteristics of the reporter system. The signal produced by Gaussia luciferase exhibits strong flash kinetics, which are considerably greater than those observed for firefly or Renilla luciferases. This strong luminescent signal makes it an attractive choice for sensitive assays.
Researchers have also explored truncated variants of Gaussia luciferase where the signal peptide is removed, allowing for the investigation of its specific role in secretion. In some instances, the signal peptide coding region is fused to other proteins to facilitate their secretion, demonstrating the adaptable nature of this biological element. The understanding of the Gaussia luciferase signal peptide is not only crucial for basic research but also for the development of advanced bioluminescence reporters and gene delivery systemsApplication of Gaussia luciferase in bicistronic and non .... The ability to control and enhance protein secretion through the strategic use of this signal peptide remains a key area of focus in molecular biology and biotechnology.
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