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Revision as of 18:22, 27 September 2024


CMV-ATF2-mRuby2

Usage and Biology

ATF2 belongs to the ATF/CREB family (Kirsch et al., 2020) and its phosphorylation by PknB, making it important for research into signaling pathways related to cell stress and survival, while mRuby2 provides a fluorescent marker for visualisation. In our cell-based & #946;-lactam ring-containing antibiotics sensor, ATF2 serves as a translator of changes in PknB activity at the level of gene regulation, in particular the activity of the ATF2-3xCre2xAP1 promoter.

Cloning

Theoretical Part Design

We placed the mRuby2 fluorescent marker (K5317001) downstream behind ATF2 (K5317015). This gene was codon optimised for human cell lines.

Sequence and features


Assembly Compatibility:
  • 10
    INCOMPATIBLE WITH RFC[10]
    Illegal EcoRI site found at 1398
    Illegal EcoRI site found at 1660
    Illegal XbaI site found at 1373
    Illegal XbaI site found at 1701
    Illegal PstI site found at 2108
    Illegal PstI site found at 2557
  • 12
    INCOMPATIBLE WITH RFC[12]
    Illegal EcoRI site found at 1398
    Illegal EcoRI site found at 1660
    Illegal PstI site found at 2108
    Illegal PstI site found at 2557
  • 21
    INCOMPATIBLE WITH RFC[21]
    Illegal EcoRI site found at 1398
    Illegal EcoRI site found at 1660
  • 23
    INCOMPATIBLE WITH RFC[23]
    Illegal EcoRI site found at 1398
    Illegal EcoRI site found at 1660
    Illegal XbaI site found at 1373
    Illegal XbaI site found at 1701
    Illegal PstI site found at 2108
    Illegal PstI site found at 2557
  • 25
    INCOMPATIBLE WITH RFC[25]
    Illegal EcoRI site found at 1398
    Illegal EcoRI site found at 1660
    Illegal XbaI site found at 1373
    Illegal XbaI site found at 1701
    Illegal PstI site found at 2108
    Illegal PstI site found at 2557
  • 1000
    INCOMPATIBLE WITH RFC[1000]
    Illegal SapI.rc site found at 670
    Illegal SapI.rc site found at 2408

Cloning

Furthermore, the CMV promoter ensures robust expression in mammalian systems (Radhakrishnan et al., 2008) that can be easily detected and analysed. This composite part was engineered with NEBBuilder® HIFI assembly method. We linearized eGFP-C2 with BamHI and AseI inserting a linked ATF2 and mRuby seamlessly.his part was amplified by using the primers in table 1.

HTML Table Caption Table1: Primers used to extract the ATF2 gene sequence.

Primer name Sequence
ATF2_fw_1 TGAACCGTCAGATCCGatgaaattcaagttacatgtgaattctgccag
ATF2_rv_2 ggatccccacttcctgagggctgtgac
ATF2_fw_3 caggaagtggggatccaccggtcg
ATF2_rv_4 TCAGTTATCTAGATCCGGTGcttgtacagctcgtccatccc


Figure 1: Assembled vector map with CcpA-mRuby2 integrated into the pEGFP-C2 backbone.

Characterisation

References

Kirsch, K., Zeke, A., Tőke, O., Sok, P., Sethi, A., Sebő, A., Kumar, G. S., Egri, P., Póti, Á. L., Gooley, P., Peti, W., Bento, I., Alexa, A., & Reményi, A. (2020). Co-regulation of the transcription controlling ATF2 phosphoswitch by JNK and p38. Nature Communications, 11(1), 5769. https://doi.org/10.1038/s41467-020-19582-3

Radhakrishnan, P., Basma, H., Klinkebiel, D., Christman, J., & Cheng, P.-W. (2008). Cell type-specific activation of the cytomegalovirus promoter by dimethylsulfoxide and 5-Aza-2’-deoxycytidine. The International Journal of Biochemistry & Cell Biology, 40(9), 1944–1955. https://doi.org/10.1016/j.biocel.2008.02.014