pDawn-X174E-T1

Description

This composite part is a generator consisting of pDawn(cI-LVA) (BBa_K1075044) ,X174E (BBa_K1835500) and T1 terminator (BBa_K3033016).

Figure 1: Genetic circuit of pDawn(cI-LVA)-X174E-T1.

Usage

We inserted the blue light responsive system pDawn(cI-LVA) (BBa_K1075044) and the lysis gene X174E (BBa_K1835500) into the pSEVA331 expression vector, which was introduced into E. coli TOP10 and screened for colonies that grew in the dark but did not grow under 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-X174E-T1 by evaluating the response to blue light.

Figure 2: Growth condition of E. coli TOP10-pDawn(cI-LVA)-X174E-T1-TOP10 in the dark and under light.

Figure 3: Growth curve diagram of E. coli TOP10-pDawn(cI-LVA)-X174E-T1-TOP10.

As shown in Figure 2, the 1^th , 4^th , 5^th, 6^th, 7^th, 8^th, 10^th, 14^th, and 16^th colonies met our expectations. To further search the lysis effect of pDawn(cI-LVA) -X174E-T1, we tracked the OD₆₀₀ value of E. coli TOP10-pSEVA311-pDawn(cI-LVA)-X174E-T1 and plotted the growth curves diagram as shown in Figure 3. It shows that the lysis effect of pDawn(cI-LVA)-X174E-T1 is mediocre.

References

[1] Ohlendorf, R., Vidavski, R. R., Eldar, A., Moffat, K. & Möglich, A. From Dusk till Dawn: One-Plasmid Systems for Light-Regulated Gene Expression. J. Mol. Biol. 416, 534-542 (2012).

[2] Witte, A., Wanner, G., Sulzner, M. & Lubitz, W. Dynamics of PhiX174 protein E-mediated lysis of Escherichia coli. Arch. Microbiol. 157, 381-8 (1992).