Types | DnaRegion
|
Roles | Coding
CDS
|
Sequences | BBa_K1489002_sequence (Version 1)
|
Description
Outer membrane protein A (OmpA) is a common outer membrane protein found in bacteria that serves various purposes. For our purposes, the beta-barrel transmembrane domain can be utilized to anchor otherwise soluble proteins in the outer cell membrane. Lpp serves to direct the fusion protein, while a unstructured linker (GGGSGGGS) serves to separate OmpA from its cargo in order to avoid interactions between the two proteins.
The expressed protein is structurally identical to BBa_K103006. This version of the biobrick has been moved into the new backbone, pSB1C3, which contains the gene for chloramphenicol resistance. This resistance gene contains an internal SacI site, making the SacI site at the end of the gene almost unusable for RE cloning. BBa_K1489003 mutagenizes this SacI site into a KasI in order to avoid this issue.
Notes
SacI site is kept in this version of Lpp-OmpA-Linker, is removed in BBa_K1489003.
Source
Part sequence is from BBa_K103006, which originally comes from the E. coli genome.