Commonsignal peptidesequences The il 2 signal peptide sequence is a crucial element in the production and secretion of Interleukin-2 (IL-2), a cytokine vital for immune responsesFacilitates secretion of proteins. Length. 60 bp. Type. Signal peptide. Sequence.ATGTACAGGATGCAACTCCTGTCTTGCATTGCACTAAGTCTTGCACTTGTCACGAATTCG. Q & A. Customer .... This N-terminal sequence acts as a molecular "zip code," directing the newly synthesized IL-2 protein to the cell's secretory pathway. Understanding this sequence is essential for researchers and biotechnologists aiming to optimize IL-2 production for therapeutic or experimental purposes.
Interleukin-2, a protein produced primarily by activated T cells, plays a pivotal role in regulating the growth, proliferation, and differentiation of lymphocytes, including T cells, B cells, and natural killer (NK) cells. For IL-2 to be secreted from the cell and exert its function in the extracellular environment, it must first be translocated into the endoplasmic reticulum. This translocation is mediated by a signal peptide, a short stretch of amino acids typically found at the N-terminus of nascent secreted proteins.Inflammatory Cytokines as a Third Signal for T Cell Activation - PMC The IL-2 signal peptide specifically guides the IL-2 precursor protein through the cellular machinery for secretion作者：G Kurys·2000·被引用次数：140—The LSP ofIL-15 also differs from prototypicsignal sequencesin its provisional secondary structure in that it appears to contain two hydrophobic elements..
The general structure of a signal peptide includes three domains: an N-terminal basic region, a central hydrophobic core, and a C-terminal cleavage site. For Interleukin-2, the specific sequence plays a critical role. Research has demonstrated that modifications to the IL-2 signal peptide can significantly affect the efficiency of protein secretion, both *in vitro* and *in vivo*. This suggests that the precise sequence and its structural properties are finely tuned to ensure optimal processing and release of the IL-2 cytokine.
The canonical sequence of the human IL-2 signal peptide is often cited, and variations exist depending on the specific context or research application.Fusion proteins and nucleic acid molecules encoding fusion proteins are disclosed. Fusion proteins comprising non-IL-15signal peptidelinked toIL-15 ... For instance, in the context of expression vectors, the sequence "MRRMQLLLLIALSLALVTNS" has been utilized as the N-terminal sequence to facilitate protein secretion.作者：G Kurys·2000·被引用次数：140—The LSP ofIL-15 also differs from prototypicsignal sequencesin its provisional secondary structure in that it appears to contain two hydrophobic elements. This sequence, along with others like "ATGTACAGGATGCAACTCCTGTCTTGCATTGCACTAAGTCTTGCACTTGTCACGAATTCG" which represents a DNA sequence encoding a signal peptide, highlights the practical applications in genetic engineering.
The primary function of the signal peptide is to initiate translocation across the endoplasmic reticulum membrane. Once the protein enters the ER lumen, the signal peptide is typically cleaved by a signal peptidase, releasing the mature, functional IL-2 protein. The efficiency of this cleavage and the subsequent folding and processing of IL-2 can be influenced by the signal peptide sequence itself. Studies exploring the optimization of signal peptides for enhanced protein secretion have identified the IL-2 signal peptide as a valuable tool in biotechnological applications.
The importance of the il 2 signal peptide sequence extends to various research and therapeutic applications. In molecular biology, it is frequently used in expression systems to ensure that recombinant IL-2 or fusion proteins containing IL-2 are efficiently secreted from host cells, such as mammalian cells or *E.作者：L Zhang·2005·被引用次数：161—Signal peptides, located at the N-terminus of nascent secreted proteins, characteristically have three domains: (1) a basic domain at the N- ... coli*.Methods: This study was designed to predict the bestsignal peptidesto expressIL-2in E. coli. To predict the bestsignal peptidesfor the expression ofIL-2... Researchers often select specific signal peptides, including those derived from IL-2, to direct proteins to the secretory pathway, facilitating purification and enhancing biological activity.Il2 - Interleukin-2 - Mus musculus (Mouse) | UniProtKB
Furthermore, alterations in signal peptides have been investigated for their impact on immunogenicity作者：CR Glassman·2021·被引用次数：41—...IL-2(amino acids 21–153) were cloned into the pAcGP67a vector (BD Biosciences) with an N-terminal gp67signal peptideand a C-terminal 6xHis .... The choice of a signal peptide can influence how a protein is presented to the immune system, making it a factor in the design of DNA epitope vaccinesCytokine produced by activated CD4-positive helper T-cells and to a lesser extend activated CD8-positive T-cells and natural killer (NK) cells.. By understanding and manipulating the signal sequence, scientists can potentially enhance the immune response elicited by therapeutic proteins or vaccines.Assessment of Signal Peptides to Optimize Interleukin 2 (IL-2 ...
Databases like UniProtKB provide detailed information on proteins, including Interleukin-2 and its associated sequencesGene - IL2 interleukin 2 [Homo sapiens (human)] - NCBI - NIH. These resources are invaluable for identifying specific sequences, such as IL2_HUMAN (for human IL-2) or IL2_MUSSP (for mouse IL-2), and understanding their characteristics, including their signal peptides.2006年2月21日—Here, we describe the crystal structure of the trimeric assembly of the humanIL-2receptor ectodomains in complex withIL-2at 3.0 A resolution. The continued study of signal peptides and their role in protein secretion is crucial for advancing our understanding of cellular biology and developing novel biotechnological solutionsDirected evolution of super-secreted variants from phage- ....
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