Part:BBa_K2446043:Design
ZFHD1_KRAB
- 10COMPATIBLE WITH RFC[10]
- 12INCOMPATIBLE WITH RFC[12]Illegal NotI site found at 176
- 21COMPATIBLE WITH RFC[21]
- 23COMPATIBLE WITH RFC[23]
- 25COMPATIBLE WITH RFC[25]
- 1000INCOMPATIBLE WITH RFC[1000]Illegal BsaI.rc site found at 208
Design Notes
This part was a fusion protein which assembled by three fragments OE-PCR. It contain three core domains from N-terminal to C-terminal: ZFHD1 DNA binding domain (DBD), nuclear location sequence and transcription regulating domain.
OE-PCR: PCR amplify and connecting the necessary fragments, using proofreading polymerase enzyme. They should have about 15-25 bp overlaps. Use oligo Tm calculators to figure out their annealing temperature. Clean up or gel extract the correct size band. Use cleaned up fragments as "template". Unlike normal PCR, about 1/2 to 3/4 volume of the extension reaction should be template.
1.Use proofreading enzyme for extension.
2.Run 10-15 PCR cycles without end primers. (Template extension step)
3.Add end primers, then continue cycling for another 15-20 rounds.
4.Gel extract the correct fragment. Clone into a vector.
Source
The three fragments are from IDT.
References
[1] J. L. Pomerantz, P. A. Sharp, C. O. Pabo, Structure-based design of transcription factors. Science 267, 93 (1995).
[2] Witzgall, R., O'Leary, E., Leaf, A., Onaldi, D. & Bonventre, J. V. The Krüppel-associated box-A (KRAB-A) domain of zinc finger proteins mediates transcriptional repression. Proceedings of the National Academy of Sciences 91, 4514-4518 (1994).
[3] Chen, X., Zaro, J. L. & Shen, W.-C. Fusion protein linkers: property, design and functionality. Advanced drug delivery reviews 65, 1357-1369 (2013).