Coding

Part:BBa_K2308003

Designed by: Yunpeng Dai   Group: iGEM17_ECUST   (2017-10-04)
Revision as of 10:36, 31 October 2017 by Binjie (Talk | contribs)


coding sequence of sYFP2 (codon optimized for Rhodobacter sphaeroides 2.4.1)

This part is a coding gene of sYFP2 (super yellow fluorescent protein), and the codes are optimized for expression in Rhodobacter Sphaeroides.


This part is an improvement of part (BBa_K864100)


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]
directionforward



sYFP2(BBa_K2308003) is the key part in our experiment. It is used both for fusion expression (see BBa_K2308002) and inducible cytoplasm expression (combined with BBa_K2308016), and the host cell is Rhodobacter sphaeroides 2.4.1.


Figure 1:PCR test of BBa_K2308003(optimized sYFP2) and original sYFP2



In inducible cytoplasm expression experiment, we used part BBa_K2308016 to turn the Rhodobacter sphaedoides 2.4.1 into inducible strains, and IPTG was added (800 μM in final volume)when the OD700 of the strain was about 0.4(grown for about 24h).


Figure 2:fluorescent image of sYFP2 (original) and sYFP2(optimized)



Figure 3:Fluorescence intensity of WT, sYFP2(optimized), sYFP2(unoptimized) strains.



It is obvious that after the codon optimization, sYFP2 can be better expressed in Rhodobacter sphaeroides 2.4.1.


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Categories
//chassis/prokaryote
//direction/forward
Parameters
directionforward