Difference between revisions of "Part:BBa J23108"

Revision as of 16:21, 24 October 2017

constitutive promoter family member For video explanation on this promoter family and its use, see [http://www.synbiotrails.org/#!/trail?id=org.clothocad.trails.youtube.TranscriptionModels this].

 Variant RFP (au)
 J23112           1
 J23103           17
 J23113           21
 J23109           106
 J23117           162
 J23114           256
 J23115           387
 J23116           396
 J23105           623
 J23110           844
 J23107           908
 J23106           1185
 J23108           1303
 J23118           1429
 J23111           1487
 J23101           1791
 J23104           1831
 J23102           2179
 J23100           2547

Constitutive promoter family
Parts J23100 through J23119 are a family of constitutive promoter parts isolated from a small combinatorial library. J23119 is the "consensus" promoter sequence and the strongest member of the family. All parts except J23119 are present in plasmid J61002. Part J23119 is present in pSB1A2. This places the RFP downstream of the promoter. Reported activities of the promoters are given as the relative fluorescence of these plasmids in strain TG1 grown in LB media to saturation. See part BBa_J61002 for details on their use.

These promoter parts can be used to tune the expression level of constitutively expressed parts. The NheI and AvrII restriction sites present within these promoter parts make them a scaffold for further modification. JCAraw

OUC-China developed part BBa_K2314127 from this part. 5'UTR will be transcribed and can be used as a regulatory element to adjust the translation process. We chose J23108 and added the 5'UTR sequence (UTRrpsT) thereafter. We found that 6h fluorescence intensity increased by more than 1.5- fold. For more information about our new part, please click here:https://parts.igem.org/Part:BBa_K2314127

UTRrpsT enhances protein expression by structure at the 5’UTR.

The enhancement of UTRrpsT may be related to its secondary structure, as shown by the website (http://rna.tbi.univie.ac.at/).

FI／Abs600： J23106 vs J23106+UTR

Sequence and Features