Part:BBa_K4165137

HTRA Binding Peptide 43

Part encodes for a synthetic peptide that binds to the PDZ domain of HTRA1 protein

Usage and Biology

A reversed sequence of a high affinity binding peptide is proposed for binding to the PDZ domain of HTRA1.

We were motivated by our chosen Tau binding peptide since it was the inverted sequence of a high affinity peptide that shown better affinity, so we decided to try it with our HTRA1 BP.

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]

Functional Parameters

Got score of 4 out of 6 in our Quality assessment code after modeling by AlphaFold2.0

cbeta_deviations = 0, clashscore = 0, molprobity = 2.64, ramachandran_favored = 33.33, ramachandran_outliers = 16.67, Qmean_4 = -5.45667, Qmean6 = -3.72154

Modeling

                 Figure 1.: 3D Model of H2Q peptide Modelled by AlphaFold2.0 displayed in Pyomol

References

Dammers, C., Yolcu, D., Kukuk, L., Willbold, D., Pickhardt, M., Mandelkow, E., ... & Funke, S. A. (2016). Selection and Characterization of Tau Binding ᴅ-Enantiomeric Peptides with Potential for Therapy of Alzheimer Disease. PLoS One, 11(12), e0167432.