Difference between revisions of "Part:BBa K3185007"

 
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===Usage and Biology===
 
===Usage and Biology===
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Tachystation A2(TA2) is a protein from Tachypleus tridentatus. (Horseshoe Crab Hemocyte-derived Antimicrobial Polypeptides, Tachystatins, with Sequence Similarity to Spider Neurotoxins) The paper (Directed evolution of polypropylene and polystyrene binding peptides) shows it binds to the polystyrene (PS).
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We used it as the PS binding protein. We also inserted Superfolder GFP (sfGFP) which we improved GFP to make the folding time shorter in the N-terminal of LCI (Part: BBa_1746916). By doing so, we wanted to do the binding assay with fluorescence.
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Moreover, we put SpyCatcher on N-terminus of sfGFP because we used the SpyTag/SpyCatcher system to bind it to other parts.
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This part has four tags. First is 6×His-tag inserted in the N-terminus of SpyCatcher for protein purification. Second is MYC-tag inserted between sfGFP and Spy-Catcher to detect it by using the antibody. Third is a TEV protease site and we put it into two regions because it was used for protein purification in the paper (Directed evolution of polypropylene and polystyrene binding peptides/Programmable polyproteams built using twin peptide superglues).
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We inserted it in between the BamHI site and the Ndel site on the pET11-a. We used  BL21(DE3) for gene expression.We used Ni-NTA agarose for purification. After that, we confirmed the molecular weight of TA2 by using SDS-PAGE.
  
 
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Revision as of 13:45, 17 October 2019


SPYCatcher -> sfGFP -> TA2 Sequence and Features


Assembly Compatibility:
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    COMPATIBLE WITH RFC[10]
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    COMPATIBLE WITH RFC[12]
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    COMPATIBLE WITH RFC[21]
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    COMPATIBLE WITH RFC[23]
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    COMPATIBLE WITH RFC[25]
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    INCOMPATIBLE WITH RFC[1000]
    Illegal SapI.rc site found at 460