il-2 signal peptide Cytokine produced by activated CD4-positive helper T-cells - Myrmqllscialslalvtns Modification of the IL-2 signal peptide augments protein secretion The Role of the IL-2 Signal Peptide in Protein Secretion and Expression

Myrmqllscialslalvtns The IL-2 signal peptide is a crucial N-terminal sequence that directs the secretion of interleukin-2 (IL-2), a vital cytokine produced primarily by activated CD4-positive helper T-cells.作者：K Ono·2022·被引用次数：5—Signal peptides(SPs) not only mediate targeting to the endoplasmic reticulum (ER) but also play important roles as biomarkers and ... Understanding the function and manipulation of this signal peptide is essential for optimizing protein expression and secretion in various research and biotechnological applications. Modifications to the IL-2 signal peptide have been shown to augment protein secretion, making it a valuable tool for researchers aiming to enhance the yield of recombinant proteinsMethods: This study was designed to predict thebest signal peptides to express IL-2 in E. coli. To predict the best signal peptides for the expression of IL-2 ....

Interleukin-2 itself plays a critical role in the immune response, mediating T-cell activation, proliferation, and differentiation. Its gene, IL2, is conserved across many species, highlighting its fundamental importance. The signal peptide, a short sequence typically ranging from 16 to 30 amino acids, acts as an address label, guiding the nascent protein to the endoplasmic reticulum for translocation and subsequent secretionIL-2 signal peptide(N terminal on backbone). Growth in Bacteria. Bacterial Resistance(s). Ampicillin, 100 μg/mL. Growth Temperature. 37°C. Growth Strain(s).. This process is fundamental not only for IL-2 but also for many other secreted proteins, and the IL-2 signal peptide has emerged as a commonly used and effective leader sequence in mammalian expression systemsSignal Peptide - an overview.

Optimizing Protein Secretion with the IL-2 Signal Peptide

Research has demonstrated that altering the IL-2 signal peptide can significantly impact protein secretion levels.Protein Name, Interleukin-2; Gene, IL2 ; Organism Scientific, Lama glama ; Organism Common, Llama ; Lineage, Eukaryota Metazoa Chordata Craniata Vertebrata Studies have shown that modifications within both the hydrophobic and basic domains of the signal peptide can lead to increased secretion of proteins both *in vitro* and *in vivo*. This suggests that the IL-2 signal peptide is not a static entity but can be engineered to enhance its efficiency. For instance, optimizing the IL-2 signal peptide has been identified as a strategy to improve protein secretion, making it a key consideration in the design of expression constructs.

The effectiveness of the IL-2 signal peptide in promoting secretion has led to its widespread use in recombinant protein production. Researchers often employ it in expression vectors, such as the pcDNA3 backbone, to facilitate the secretion of target proteins. This approach is particularly valuable when high yields of secreted proteins are desired, for example, in the development of therapeutic proteins or for detailed biochemical studiesSignal peptide replacements enhance expression and .... The ability to predict and select the best signal peptides for expressing IL-2, or other proteins of interest, in systems like *ECommonly used leader peptide sequences for mammalian .... coli* is an active area of research, further underscoring the importance of signal peptide designIL-2 signal peptide(N terminal on backbone). Growth in Bacteria. Bacterial Resistance(s). Ampicillin, 100 μg/mL. Growth Temperature. 37°C. Growth Strain(s)..

Understanding Signal Peptides and Their Function

Signal peptides are short peptides found at the N-terminus of many proteins, carrying the necessary information for their secretion. They are ubiquitous across all domains of life and are essential for targeting proteins to specific cellular compartments, primarily the endoplasmic reticulum in eukaryotes. The sequence and structure of a signal peptide are critical for its function, influencing its interaction with the cellular machinery responsible for protein translocation.作者：B Wen·2011·被引用次数：41—Alteration in the IL-2 signal peptide affects secretion of proteinsin vitro and in vivo. ,. J Gene Med. ,. 2005. , vol. 7. (pg. 354. -. 365. ).

Databases dedicated to signal peptides, such as the Signal Peptide Database, provide valuable resources for researchers作者：G Kurys·2000·被引用次数：140—IL-2 is produced by activated T cellsand is predominantly con- trolled at the levels of mRNA transcription and stabilization, whereas the widely distributed IL .... These databases catalog sequences from various organisms and proteins, including interleukins like IL-2, IL-34, and IL-4, aiding in the selection and design of optimal signal sequences for protein expression作者：Z Wu·2020·被引用次数：118—...IL-2 Signal Peptide Affects Secretion of Proteins in Vitro and in Vivo. ... Thus, modification of the IL-2 signal peptide augments protein .... Understanding the amino acid sequence and structural features of the IL-2 signal peptide, and comparing it to other signal peptides, can provide insights into its secretion-enhancing capabilities.

Applications and Considerations

The IL-2 signal peptide is a versatile tool used in various molecular biology applications. It is frequently used in the construction of expression plasmids designed for mammalian cell culture, where it helps ensure that the expressed protein is efficiently secreted into the medium. This simplifies downstream purification processes and allows for the collection of biologically active protein. Researchers have utilized the IL-2 signal peptide for secreting fusion proteins, such as those combining human IL-2 with other antigens, demonstrating its applicability beyond the native IL-2 protein.IL-2 Signal for research use only. Not intended for any clinical use. Features: Facilitates secretion of proteins. Length: 60 bp. Type: Signal peptide.

While the IL-2 signal peptide is highly effective, it's important to note that its use is often for research purposes and not intended for direct clinical application without further validation. The selection of the most appropriate signal peptide can depend on the specific protein of interest and the expression system being used.作者：L Zhang·2005·被引用次数：161—We found that modificationof the commonly used signal peptide of IL-2in both the hydrophobic and basic domains increases secretion of proteins in vitro and ... Factors such as the length and characteristics of the signal peptide, including its hydrophobic and basic domains, can influence secretion efficiency.作者：N Nazifi·2019·被引用次数：5—To predict thebest signal peptides for the expression of IL-2in Gram-negative bacteria (E. coli), forty-five sequences of SPs were extracted ... Continuous research into signal peptide engineering and prediction tools aims to further refine these processes, enabling more efficient and targeted protein productionConstruction of expression plasmids containing the wild- ....