Difference between revisions of "Part:BBa K4160000"
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The Igκ secretion signal peptide is a useful part to translocate proteins to the cellular membrane.  
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<p>Igκ secretion signal is derived from the murine immunoglobulin kappa (IgGκ) light chain (Figure 1). This part is a well-characterized signal peptide for transgene expression<sup>1</sup> and is widely implemented in several eukaryotic expression vectors.<sup>2</sup> The Igκ secretion signal translocates proteins to the cellular membrane.<sup>3</sup></p><br><br>
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<figure><img src="https://static.igem.org/mediawiki/parts/1/11/BBa_K4160000_TU-Eindhoven_igGk_light_chain.png" width="640px" heigth=480px">
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<p><b>Figure 1 | 3D structure of the IgGκ light chain.</b> Yellow: the Igκ signal. Blue: main chain (AlphaFold: AF-P01661-F1).<sup>4</sup></p>
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<h2>Usage and Biology</h2>
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<p>The Igκ secretion signal is derived from the IgGκ light chain that originates from the <i>Mus musculus (mouse)</i>.<sup>4</sup> This signal is a peptide that influences the targeting pathway of a protein, leading to specific post-translational modifications or translocation of proteins to the cellular membrane.<sup>1,3</sup> Signal peptides are short peptides that consist of approximately 20 to 30 amino acids.<sup>1</sup> It consists of a basic N-domain, a hydrophobic domain, and a slightly polar C-domain.<sup>3</sup> Signal peptides are recognized during the translation of a secretory protein. The signal peptide will bind a signal recognition particle, to form a complex that halts the translation. Subsequently, this complex is transported to the endoplasmic reticulum. From there, the translation will resume and the protein will eventually be secreted via the cell's secretory pathway.<sup>3</sup> In research, the Igκ secretion signal is often used to express recombinant proteins.<sup>2</sup> </a href="https://2022.igem.wiki/tu-eindhoven/">The TU-Eindhoven 2022</a> used this part to translocate the GEMS receptor (</a href="https://parts.igem.org/Part:BBa_K4160008">BBa_K4160008</a>) to the membrane of HEK293T cells.</p><br><br>
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===Usage and Biology===
 
  
 
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Revision as of 11:41, 11 October 2022


Igκ secretion signal

Igκ secretion signal is derived from the murine immunoglobulin kappa (IgGκ) light chain (Figure 1). This part is a well-characterized signal peptide for transgene expression1 and is widely implemented in several eukaryotic expression vectors.2 The Igκ secretion signal translocates proteins to the cellular membrane.3



Figure 1 | 3D structure of the IgGκ light chain. Yellow: the Igκ signal. Blue: main chain (AlphaFold: AF-P01661-F1).4


Usage and Biology

The Igκ secretion signal is derived from the IgGκ light chain that originates from the Mus musculus (mouse).4 This signal is a peptide that influences the targeting pathway of a protein, leading to specific post-translational modifications or translocation of proteins to the cellular membrane.1,3 Signal peptides are short peptides that consist of approximately 20 to 30 amino acids.1 It consists of a basic N-domain, a hydrophobic domain, and a slightly polar C-domain.3 Signal peptides are recognized during the translation of a secretory protein. The signal peptide will bind a signal recognition particle, to form a complex that halts the translation. Subsequently, this complex is transported to the endoplasmic reticulum. From there, the translation will resume and the protein will eventually be secreted via the cell's secretory pathway.3 In research, the Igκ secretion signal is often used to express recombinant proteins.2 The TU-Eindhoven 2022 used this part to translocate the GEMS receptor (BBa_K4160008) to the membrane of HEK293T cells.




Sequence and Features


Assembly Compatibility:
  • 10
    COMPATIBLE WITH RFC[10]
  • 12
    COMPATIBLE WITH RFC[12]
  • 21
    COMPATIBLE WITH RFC[21]
  • 23
    COMPATIBLE WITH RFC[23]
  • 25
    COMPATIBLE WITH RFC[25]
  • 1000
    COMPATIBLE WITH RFC[1000]