pDawn-RBS070-LKD-LVA-T1

Description

This composite part is a generator consisting of pDawn (cI-LVA) (BBa_K1075044) and LKD-LVA (BBa_K4325011).

Usage

We inserted the pDawn(cI-LVA) blue light response system (BBa_K1075044) and the lysis gene with hydrolysis tag LKD-LVA (BBa_K4325011) into the pSEVA331 expression vector, which was inserted into E. coli TOP10 and screened for bacterial colony that grew in the dark but did not grow under blue light. Finally, the pDawn (cI-LVA)-LKD-LVA-T1 plasmids were inserted into G. hansenii ATCC53582 by electroporation to verify the responsiveness of pDawn(cI-LVA) to blue light.

Sequence and Features

Assembly Compatibility:

10
COMPATIBLE WITH RFC[10]
12
COMPATIBLE WITH RFC[12]
21
INCOMPATIBLE WITH RFC[21]
Illegal BglII site found at 2171
23
COMPATIBLE WITH RFC[23]
25
INCOMPATIBLE WITH RFC[25]
Illegal NgoMIV site found at 63
Illegal NgoMIV site found at 195
Illegal NgoMIV site found at 289
Illegal NgoMIV site found at 582
Illegal NgoMIV site found at 1076
Illegal NgoMIV site found at 1094
Illegal NgoMIV site found at 1184
Illegal AgeI site found at 414
Illegal AgeI site found at 1542
1000
INCOMPATIBLE WITH RFC[1000]
Illegal BsaI site found at 1643
Illegal BsaI.rc site found at 525

2022 SZPT-China

Characterization

1.Batch screening of pDawn(cI-LVA)-LKD-LVA-T1 in response to blue light lysis in E. coli.

As shown in Figure 1, We inserted pDawn(cI-LVA)-RBS070-LKD-LVA-T1 into E. coli TOP10 and performed the agarose gel electrophoresis. Then we cultured monocloning site in the dark and under the light. After 12 hours, we found that the 4^th, 5^th, 6^th, 14^th bacteria grew in the dark and did not grow under the light,(Figure 2) which indicates that pDawn(cI-LVA)-RBS070-LKD-LVA-T1 was successfully expressed in E. coli TOP10.

Figure 1:Successfully identified by agarose gel electrophoresis

(1)pDawn (cI-LVA)-RBS070-LKD-LVA-T1 and

(2)pDawn (cI-LVA)-X174E-LVA-T1 were successfully identified in E. coli TOP10

Figure 2:Growth condition of pSEVA331-pDawn (cI-LVA)-RBS070-LKD-LVA-T1-TOP10 in the dark and under the light

References

[1]Robert Ohlendorf, Roee R. Vidavski, Avigdor Eldar et.al.From Dusk till Dawn: One-Plasmid Systems for Light-Regulated Gene Expression.Journal of Molecular Biology, 08 Jan 2012, 416(4):534-542.