![](https://parts.igem.org/images/partbypart/icon_coding.png)
Part:BBa_K2308003
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 2.4.1.
This part is an improvement of part (BBa_K864100)
Sequence and Features
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21COMPATIBLE WITH RFC[21]
- 23COMPATIBLE WITH RFC[23]
- 25COMPATIBLE WITH RFC[25]
- 1000COMPATIBLE WITH RFC[1000]
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.
Before Optimization | After Optimization |
---|---|
ATGGTTAGCAAGGGCGAAGAACTTTTTACAGGCGTAGTACCGATCTTAGTTG AATTAGACGGCGACGTTAACGGTCATAAGTTTAGCGTGAGCGGTGAGGGTG AAGGTGACGCAACTTACGGCAAGCTGACCCTGAAGCTGATTTGCACGACGG GTAAGCTGCCGGTCCCGTGGCCTACCCTGGTCACGACCTTGGGTTATGGCG TTCAGTGTTTCGCGCGTTATCCGGACCACATGAAACAACACGATTTCTTTAA GAGCGCGATGCCAGAAGGCTATGTGCAGGAGCGTACGATCTTTTTCAAAGA CGACGGTAACTACAAGACGCGTGCCGAAGTCAAATTCGAAGGCGACACCCT GGTGAATCGCATTGAGCTGAAGGGTATTGATTTCAAAGAGGATGGCAATATC CTGGGTCACAAGCTGGAGTACAATTACAATTCCCACAACGTTTACATCACCG CAGATAAACAGAAAAATGGCATCAAAGCGAATTTCAAAATCCGTCACAACAT TGAGGACGGTGGTGTTCAACTGGCGGATCATTACCAGCAAAACACCCCGAT TGGTGACGGTCCGGTCCTGTTGCCGGATAACCATTATCTGTCTTACCAAAG CAAACTGAGCAAAGATCCGAACGAGAAGCGCGACCACATGGTGCTGCTGG AGTTTGTGACCGCTGCCGGTATTACCCTGGGTATGGATGAGCTGTATAAATA ATAA | ATGGTGTCCAAGGGCGAGGAGGACAACATGGCCATCATCAAG GAGTTCATGCGCTTCAAGGTGCACATGGAGGGCAGCGTGAACGG CCACGAGTTCGAGATCGAGGGCGAGGGCGAGGGCCGCCCCT ACGAGGGCACCCAGACCGCCAAGCTGAAGGTGACCAAGGGCGGC CCCCTGCCCTTCGCCTGGGACATCCTGAGCCCCCAGTTCATGTA CGGCAGCAAGGCCTACGTGAAGCACCCCGCCGACATCCCCGACTAC CTGAAGCTGAGCTTCCCCGAGGGCTTCAAGTGGGAGCGCGTGAT GAACTTCGAGGACGGCGGCGTGGTGACCGTGACCCAGGACAGCAGC CTCCAGGACGGCGAGTTCATCTACAAGGTGAAGCTGCGCGGCACC AACTTCCCCAGCGACGGCCCCGTGATGCAGAAGAAGACCATGGGCTG GAGGCCAGCAGCGAGCGCATGTACCCCGAGGACGGCGCCCTGAAG GGCGAGATCAAGCAGCGCCTGAAGCTGAAGGACGGCGGCCACTAC GACGCCGAGGTGAAGACCACCTACAAGGCCAAGAAGCCCGTGC AGCTGCCCGGCGCCTACAACGTGAACATCAAGCTGGACATCACCAGC CACAACGAGGACTACACCATCGTGGAGCAGTACGAGCGCGCTG AGGGCCGCCACAGCACCGGCGGCATGGACGAGCTGTACAAGTAA |
![](https://static.igem.org/mediawiki/2017/4/47/F1-D.png)
![](https://static.igem.org/mediawiki/2017/4/47/F1-D.png)
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 sphaeroides 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).
![](https://static.igem.org/mediawiki/2017/b/be/Cwj_yingguang0002.jpg)
![](https://static.igem.org/mediawiki/2017/5/57/Cwj_yingguang0004.jpg)
Figure 2:fluorescent image of sYFP2 (original) and sYFP2(optimized)
![](https://static.igem.org/mediawiki/2017/9/99/F5-A%281%29.png)
![](https://static.igem.org/mediawiki/2017/9/99/F5-A%281%29.png)
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.
//direction/forward
direction | forward |