Difference between revisions of "Part:BBa K3365000"
Little ghost (Talk | contribs) (→Usage and Biology) |
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The dCas9 is a Cas9 nuclease mutant. Mutations D10A and H840A in the RucC and HNH domains, respectively, abolish cleavage but do not impair DNA binding. The dCas9 provides a simple and robust technology for gene repression and activation, and can target almost any DNA sequence aided by the sgRNA. The ω subunit can activate transcription by recruiting the RNAP holoenzyme. The fusion between dCas9 and ω subunit can activate gene transcription downstream of the protospacer. The CRISPR interference inhibits transcription by sterically blocking the RNA polymerase(RNAP). | The dCas9 is a Cas9 nuclease mutant. Mutations D10A and H840A in the RucC and HNH domains, respectively, abolish cleavage but do not impair DNA binding. The dCas9 provides a simple and robust technology for gene repression and activation, and can target almost any DNA sequence aided by the sgRNA. The ω subunit can activate transcription by recruiting the RNAP holoenzyme. The fusion between dCas9 and ω subunit can activate gene transcription downstream of the protospacer. The CRISPR interference inhibits transcription by sterically blocking the RNA polymerase(RNAP). | ||
| − | <center>[[File: | + | <center>[[File:DCas9_omega.png]]</center> |
<center><b>Figure1.</b> Gene circuit</center> | <center><b>Figure1.</b> Gene circuit</center> | ||
Latest revision as of 18:32, 27 October 2020
dCas9-ω
An RNA polymerase ω subunit is fused to the C-terminal of dCas9.
Usage and Biology
The dCas9 is a Cas9 nuclease mutant. Mutations D10A and H840A in the RucC and HNH domains, respectively, abolish cleavage but do not impair DNA binding. The dCas9 provides a simple and robust technology for gene repression and activation, and can target almost any DNA sequence aided by the sgRNA. The ω subunit can activate transcription by recruiting the RNAP holoenzyme. The fusion between dCas9 and ω subunit can activate gene transcription downstream of the protospacer. The CRISPR interference inhibits transcription by sterically blocking the RNA polymerase(RNAP).
Sequence and Features
Assembly Compatibility:
- 10INCOMPATIBLE WITH RFC[10]Illegal EcoRI site found at 1340
- 12INCOMPATIBLE WITH RFC[12]Illegal EcoRI site found at 1340
Illegal NheI site found at 1099 - 21INCOMPATIBLE WITH RFC[21]Illegal EcoRI site found at 1340
Illegal BamHI site found at 3378
Illegal BamHI site found at 4212 - 23INCOMPATIBLE WITH RFC[23]Illegal EcoRI site found at 1340
- 25INCOMPATIBLE WITH RFC[25]Illegal EcoRI site found at 1340
- 1000COMPATIBLE WITH RFC[1000]