Composite

Part:BBa_K4165050

Designed by: Ahmed Sameh   Group: iGEM22_CU_Egypt   (2022-09-30)
Revision as of 17:55, 11 October 2022 by Esraa Elmligy (Talk | contribs)


HtrA1 Switch 30

This composite part consists of T7 promoter (BBa_K3633015), lac operator (BBa_K4165062), pGS-21a RBS (BBa_K4165016), 6x His-tag (BBa_K4165020), H1A (BBa_K4165000), GSGS Linker (BBa_K4165065), Peptide seed (BBa_K4165012), GGSGGGGG Linker (BBa_K4165019), GSGS Linker (BBa_K4165000), WAP inhibitor (BBa_K4165008), and T7 terminator (BBa_K731721).

Usage and Biology

Switch 30 is used to mediate the activity of HTRA1. It is composed of 3 parts connected by different linkers; an HtrA1 PDZ peptide, a clamp of two targeting peptides for tau or amyloid beta, and a catalytic domain inhibitor. Activating HTRA1 requires a conformational change in the linker, eliminating the attached inhibitor from the active site. The conformational rearrangement can be mediated through the binding of affinity clamp to tau or beta-amyloid. This binding will result in a tension that detaches the inhibitor from the active site.


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
    INCOMPATIBLE WITH RFC[25]
    Illegal NgoMIV site found at 490
    Illegal AgeI site found at 226
  • 1000
    COMPATIBLE WITH RFC[1000]

Dry lab

Modeling

The switch was modeled by (Alphafold - Rosettafold - tRrosetta) and the top model was obtained from tRrosseta with a score of 5 out of 6 according to our quality assessment code.


                                Figure 1. The 3D structure of switch 30 modeled by TRrosetta.


[edit]
Categories
Parameters
None