SV40 NLSsequence The SV40 NLS peptide, a short but potent amino acid sequence, plays a crucial role in cellular biology, particularly in directing proteins and other molecules into the nucleus. Derived from the Simian Vacuolating Virus 40 (SV40) large T-antigen, this peptide is a commonly used nuclear localization signal (NLS) peptide due to its high efficiency and well-characterized mechanism of action. Understanding the properties and applications of the SV40 T-Ag-derived NLS peptide is essential for researchers in various fields, from molecular biology to drug delivery.
At its core, a nuclear localization signal is an amino acid sequence that 'tags' a protein for import into the cell nucleus. The SV40 NLS is a prime example of a monopartite NLS, meaning it consists of a single cluster of basic amino acids. Specifically, the sequence Pro-Lys-Lys-Lys-Arg-Lys-Val-Gly (PKKKRKVEDP) is frequently cited as the functional NLS, with the core motif being PKKKRKV. This sequence is recognized by importin-alpha, a key component of the nuclear import machinery.A long synthetic peptide containing a nuclear localization ... The interaction between the SV40 T-Ag-derived NLS peptide and importin-alpha facilitates the translocation of the tagged molecule through the nuclear pore complex and into the nucleus.
The efficacy of the SV40 NLS peptide has led to its widespread use in researchSimian Vacuolating Virus 40 Nuclear Localization Signal. One of its most significant applications is in tagging cargo molecules, such as DNA or proteins, to enhance their nuclear uptake. When a DNA tagged to this peptide efficiently translocates into the cell nucleus, it opens up possibilities for gene therapy, gene delivery, and the study of nuclear processes.Thispeptide, a nuclear localization signal DNA tagged to thispeptideefficiently translocates into the cell nucleus. Catalog No. NC2041772. Sign In or ... This ability for cargo to efficiently translocate into the cell nucleus is a hallmark of the SV40 T-Ag-derived NLS peptide.
Beyond its direct application in tagging, the SV40 NLS has also served as a model for understanding nuclear transport mechanisms. Research has delved into the intricacies of how this signal interacts with cellular components. For instance, studies have shown that the SV40 large T-antigen NLS binds to specific sites on the importin-alpha receptor, similar to observations in yeast importin-alpha. This detailed understanding of the SV40 NLS sequence and its interactions provides valuable insights into the broader principles of protein import into the nucleus.2000年4月24日—We show that the monopartiteSV40 large T-antigen NLSbinds to two binding sites on the receptor, similar to what was observed in yeast importin-alpha.
Furthermore, the SV40 T-Ag-derived NLS peptide can function as a cell-penetrating peptide. This property means it can not only facilitate nuclear import but also help deliver larger molecules across the cell membrane. An NLS, cell-penetrating peptide containing 7 amino acids homologous to the SV40 T antigen can be engineered to carry diverse payloads into cells, demonstrating the versatility of this peptide motifSV40 NLS - AnaSpec. The SV40 T-Ag-derived NLS Peptide is therefore a valuable tool for researchers aiming to deliver molecules into the cytoplasm and subsequently the nucleus.
The SV40 NLS peptide is commercially available in various forms, including as a standalone peptide or as part of specialized reagentsWW domains: A globular NLS recognized by importin-α. For example, SV40 T-Ag-derived NLS peptide acetate and SV40 T-Ag-derived NLS peptide TFA are common formulations provided with certificates of analysis detailing their purity and identity, often confirmed by HPLC and MS data. These products, such as the SV40 NLS Peptide from various suppliers, are made to order and come in different quantities and price points, reflecting their importance in scientific research. The availability of SV40 NLS peptide in various forms like SV40 NLS peptide acetate and SV40 T-Ag-derived NLS peptide TFA underscores its established role in the scientific communityThe SV40 T-ag nuclear localization signal affects ....
The SV40 virus itself played a pivotal role in the initial discovery and characterization of nuclear localization signals.SV40 large T antigen NLS | Peptide The analysis of mutants of SV40 led to the identification of its NLS, which is composed of specific amino acid residues.作者:J Lu·2021·被引用次数:549—A nuclear localization signal (NLS) was firstly identified through the analysis of mutants of simian virus 40 (SV40), whoseNLSis composed of ... This historical context highlights the foundational importance of the SV40 system in advancing our knowledge of cellular transportSV40 NLS; Simian Vacuolating Virus 40 Nuclear Localization Signal; Catalog Number · P002518 ; Sequence · Pro-Lys-Lys-Lys-Arg-Lys-Val-Gly ; Synonym · SV40 NLS; Simian .... The SV40 large T-antigen NLS is a testament to this discovery, enabling protein import into the cell nucleus.
In summary, the SV40 NLS peptide is a fundamental tool in molecular and cell biology. Its ability to direct molecules into the nucleus, whether it's DNA tagged to this peptide or other cargo, makes it invaluable for research applications作者:P Collas·1996·被引用次数:91—We demonstrate that nuclear import of DNA-NLScomplexes is a two-step process involving binding to, and translocation across, the nuclear envelope.. The SV40 T-Ag-derived NLS peptide continues to be a subject of study and a practical reagent, facilitating advancements in our understanding of nuclear transport and enabling novel therapeutic and experimental approaches. The SV40 NLS; Simian Vacuolating Virus 40 Nuclear Localization Signal is a peptide that has revolutionized our ability to manipulate cellular processesNOV-PE-86612 · NOV-PE-86612-1mg — 1 mg. 3.00.SV40 NLS Peptidequantity · NOV-PE-86612-5mg — 5 mg. 4.00. SV40 NLS Peptide quantity · NOV-PE-86612-10mg — ....
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