Part:BBa_K1937010:Design

Part: BBa_K1937010 (pSBBs0K-Epsilon/MazF)
(Chassis Bacillus subtilis, carrier plasmid pSBBs0K-mini)
Length: 6855 bp

Background: This Epsilon/MazF part is one of the two components of a double toxin-antitoxin system. The gene Epsilon codes for a toxin countered by the anti-toxin Zeta (Zielenkiewicz and Cegłowski, 2005 ; Mutschler et al., 2011). The gene MazF encodes the anti-toxin for the MazE toxin (Bravo et al., 1987, Zhang et al., 2005, Wang et al., 2013). The part was designed to be carried on a plasmid while its counterpart MazE/Zeta was carried on another. Unfortunately, only Epsilon/MazF part was successfully cloned in E. coli. This BioBrick is a part developed by the Toulouse 2016 iGEM team and cloned on the pSBBS0K-mini plasmid BBa_K1937001 (http://2016.igem.org/Team:Toulouse_France)

This part: Epsilon and MazF are under the control of the promoter Pveg (constitutive promotor for B. subtilis) followed by a strong RBS. A theophylline-dependent riboswitch was used to prevent the MazE toxin expression during the cloning steps in presence of theophylline (Topp and Gallivan, 2008). Indeed, with an expressed toxin, it would be impossible to clone the Biobrick in E. coli. SacII and KpnI are the restriction sites placed respectively before and after the riboswitch so that this fragment can easily be replaced depending on the control we want to apply to the bacteria. The construction was created by integrating the EcorI-PstI fragment from BBa_K1937009 in the pSBBs0K-mini plasmid (BBa_K1937001).

Validation: In absence of its counterpart MazE/Epsilon, it was not possible to validate this part. However, we did not obtain any transformant for this construction, with or without theophylline. We conclude that the toxicity of the operon is likely not controlled enough.

Sequence:

Map

ATCTATTATTAATCTGTTCAGCAATCGGGCGCGATTGCTGAATAAAAGATACGAGAGACCTCTCTTGTATCTTTTTTATTTTGAGTGGTTTTGTCCGTTACACTAGAAAACCGAAAGACAATAAAAATTTTATTCTTGCTGAGTCTGGCTTTCGGTAAGCTAGACAAAACGGACAAAATAAAAATTGGCAAGGGTTTAAAGGTGGAGATTTTTTGAGTGATCTTCTCAAAAAATACTACCTGTCCCTTGCTGATTTgAATTCGCGGCCGCTTCTAGAGggagttctgagaattggtatgccttataagtccaattaacagttgaaaacctgcataggagagctatgcgggttttttattttacataatgatacataatttaccgaaacttgcggaacataattgaggaatcatagaattttgtcaaaataattttattgacaacgtcttattaacgttgatataatttaaattttatttgacaaaaatgggctcgtgttgtacaataaatgtagtaaaggtggtgaaatggcagttacgtatgaaaaaacatttgaaatagagatcattaacgaattatcggcaagcgtttataatcgagtattaaactatgttttgaaccatgaattaaataaaaatgactctcaattattggaagtcaatttattaaaccaattaaagcttgcaaaacgtgtaaatctttttgattattctttagaagaattacaagccgttcatgagtattggcggtcaatgaatcgttactcaaaacaagttttgaataaagagaaagtggcttaaccgcggatgcaacctgataccagcatcgtcttgatgcccttggcagcaggcaacaagggtaccatggtaagccgatacgtacccgatatgggcgatctgatttgggttgattttgacccgacaaaaggtagcgagcaagctggacatcgtccagctgttgtcctgagtcctttcatgtacaacaacaaaacaggtatgtgtctgtgtgttccttgtacaacgcaatcaaaaggatatccgttcgaagttgttttatccggtcaggaacgtgatggcgtagcgttagctgatcaggtaaaaagtatcgcctggcgggcaagaggagcaacgaagaaaggaacagttgccccagaggaattacaactcattaaagccaaaattaacgtactgattgggtaataaccaggcatcaaataaaacgaaaggctcagtcgaaagactgggcctttcgttttatctgttgtttgtcggtgaacgctctcTACTAGTAGCGGCCGCTGCAgGCGCAACGCAATTAATGTGAGTTAGGATCCTGCCTCGCGCGTTTCGGTGATGACGGTGAAAACCTCTGACACATGCAGCTCCCGGAGACGGTCACAGCTTGTCTGTAAGCGGATGCCGGGAGCAGACAAGCCCGTCAGGGCGCGTCAGCGGGTGTTGGCGGGTGTCGGGGCGCAGCCATGACCCAGTCACGTAGCGATAGCGGAGTGTATACTGGCTTAACTATGCGGCATCAGAGCAGATTGTACTGAGAGTGCACCATATGCGGTGTGAAATACCGCACAGATGCGTAAGGAGAAAATACCGCATCAGGCGCTCTTCCGCTTCCTCGCTCACTGACTCGCTGCGCTCGGTCGTTCGGCTGCGGCGAGCGGTATCAGCTCACTCAAAGGCGGTAATACGGTTATCCACAGAATCAGGGGATAACGCAGGAAAGAACATGTGAGCAAAAGGCCAGCAAAAGGCCAGGAACCGTAAAAAGGCCGCGTTGCTGGCGTTTTTCCATAGGCTCCGCCCCCCTGACGAGCATCACAAAAATCGACGCTCAAGTCAGAGGTGGCGAAACCCGACAGGACTATAAAGATACCAGGCGTTTCCCCCTGGAAGCTCCCTCGTGCGCTCTCCTGTTCCGACCCTGCCGCTTACCGGATACCTGTCCGCCTTTCTCCCTTCGGGAAGCGTGGCGCTTTCTCATAGCTCACGCTGTAGGTATCTCAGTTCGGTGTAGGTCGTTCGCTCCAAGCTGGGCTGTGTGCACGAACCCCCCGTTCAGCCCGACCGCTGCGCCTTATCCGGTAACTATCGTCTTGAGTCCAACCCGGTAAGACACGACTTATCGCCACTGGCAGCAGCCACTGGTAACAGGATTAGCAGAGCGAGGTATGTAGGCGGTGCTACAGAGTTCTTGAAGTGGTGGCCTAACTACGGCTACACTAGAAGGACAGTATTTGGTATCTGCGCTCTGCTGAAGCCAGTTACCTTCGGAAAAAGAGTTGGTAGCTCTTGATCCGGCAAACAAACCACCGCTGGTAGCGGTGGTTTTTTTGTTTGCAAGCAGCAGATTACGCGCAGAAAAAAAGGATCTCAAGAAGATCCTTTGATCTTTTCTACGGGGTCTGACGCTCAGTGGAACGAAAACTCACGTTAAGGGATTTTGGTCATGAGATTATCAAAAAGGATCTTCACCTAGATCCTTTTAAATTAAAAATGAAGTTTTAAATCAATCTAAAGTATATATGAGTAAACTTGGTCTGACAGTTACCAATGCTTAATCAGTGAGGCACCTATCTCAGCGATCTGTCTATTTCGTTCATCCATAGTTGCCTGACTCCCCGTCGTGTAGATAACTACGATACGGGAGGGCTTACCATCTGGCCCCAGTGCTGCAATGATACCGCGAGACCCACGCTCACCGGCTCCAGATTTATCAGCAATAAACCAGCCAGCCGGAAGGGCCGAGCGCAGAAGTGGTCCTGCAACTTTATCCGCCTCCATCCAGTCTATTAATTGTTGCCGGGAAGCTAGAGTAAGTAGTTCGCCAGTTAATAGTTTGCGCAACGTTGTTGCCATTGCTGCCGGCATCGTGGTGTCACGCTCGTCGTTTGGTATGGCTTCATTCAGCTCCGGTTCCCAACGATCAAGGCGAGTTACATGATCCCCCATGTTGTGCAAAAAAGCGGTTAGCTCCTTCGGTCCTCCGATCGTTGTCAGAAGTAAGTTGGCCGCAGTGTTATCACTCATGGTTATGGCAGCACTGCATAATTCTCTTACTGTCATGCCATCCGTAAGATGCTTTTCTGTGACTGGTGAGTACTCAACCAAGTCATTCTGAGAATAGTGTATGCGGCGACCGAGTTGCTCTTGCCCGGCGTCAACACGGGATAATACCGCGCCACATAGCAGAACTTTAAAAGTGCTCATCATTGGAAAACGTTCTTCGGGGCGAAAACTCTCAAGGATCTTACCGCTGTTGAGATCCAGTTCGATGTAACCCACTCGTGCACCCAACTGATCTTCAGCATCTTTTACTTTCACCAGCGTTTCTGGGTGAGCAAAAACAGGAAGGCAAAATGCCGCAAAAAAGGGAATAAGGGCGACACGGAAATGTTGAATACTCATACTCTTCCTTTTTCAATATTATTGAAGCATTTATCAGGGTTATTGTCTCATGAGCGGATACATATTTGAATGTATTTAGAAAAATAAACAAATAGGGGTTCCGCGCACATTTCCCCGAAAAGTGCCACCTGACGTCTAAGAAACCATTATTATCATGACATTAACCTATAAAAATAGGCGTATCACGAGGCCCTTTCGTCTTCAAGAGTTCCTTAAGGAACGTACAGACGGCTTAAAAGCCTTTAAAAACGTTTTTAAGGGGTTTGTAGACAAGGTAAAGGATAAAACAGCACAATTCCAAGAAAAACACGATTTAGAACCTAAAAAGAACGAATTTGAACTAACTCATAACCGAGAGGTAAAAAAAGAACGAAGTCGAGATCAGGGAATGAGTTTATAAAATAAAAAAAGCACCTGAAAAGGTGTCTTTTTTTGATGGTTTTGAACTTGTTCTTTCTTATCTTGATACATATAGAAATAACGTCATTTTTATTTTAGTTGCTGAAAGGTGCGTTGAAGTGTTGGTATGTATGTGTTTTAAAGTATTGAAAACCCTTAAAATTGGTTGCACAGAAAAACCCCATCTGTTAAAGTTATAAGTGACTAAACAAATAACTAAATAGATGGGGGTTTCTTTTAATATTATGTGTCCTAATAGTAGCATTTATTCAGATGAAAAATCAAGGGTTTTAGTGGACAAGACAAAAAGTGGAAAAGTGAGACCATGGAGAGAAAAGAAAATCGCTAATGTTGATTACTTTGAACTTCTGCATATTCTTGAATTTAAAAAGGCTGAAAGAGTAAAAGATTGTGCTGAAATATTAGAGTATAAACAAAATCGTGAAACAGGCGAAAGAAAGTTGTATCGAGTGTGGTTTTGTAAATCCAGGCTTTGTCCAATGTGCAACTGGAGGAGAGCAATGAAACATGGCATTCAGTCACAAAAGGTTGTTGCTGAAGTTATTAAACAAAAGCCAACAGTTCGTTGGTTGTTTCTCACATTAACAGTTAAAAATGTTTATGATGGCGAAGAATTAAATAAGAGTTTGTCAGATATGGCTCAAGGATTTCGCCGAATGATGCAATATAAAAAAATTAATAAAAATCTTGTTGGTTTTATGCGTGCAACGGAAGTGACAATAAATAATAAAGATAATTCTTATAATCAGCACATGCATGTATTGGTATGTGTGGAACCAACTTATTTTAAGAATACAGAAAACTACGTGAATCAAAAACAATGGATTCAATTTTGGAAAAAGGCAATGAAATTAGACTATGATCCAAATGTAAAAGTTCAAATGATTCGACCGAAAAATAAATATAAATCGGATATACAATCGGCAATTGACGAAACTGCAAAATATCCTGTAAAGGATACGGATTTTATGACCGATGATGAAGAAAAGAATTTGAAACGTTTGTCTGATTTGGAGGAAGGTTTACACCGTAAAAGGTTAATCTCCTATGGTGGTTTGTTAAAAGAAATACATAAAAAATTAAACCTTGATGACACAGAAGAAGGCGATTTGATTCATACAGATGATGACGAAAAAGCCGATGAAGATGGATTTTCTATTATTGCAATGTGGAATTGGGAACGGAAAAATTATTTTATTAAAGAGTAGTTCAACAAACGGGCCAGTTTGTTGAAGATTAGATGCTATAATTGTTATTAAAAGGATTGAAGGATGCTTAGGAAGACGAGTTATTAATAGCTGAATAAGAACGGTGCTCTCCAAATATTCTTATTTAGAAAAGCAAATCTAAAATTATCTGAAAAGGGAATGAGAATAGTGAATGGACCAATAATAATGACTAGAGAAGAAAGAATGAAGATTGTTCATGAAATTAAGGAACGAATATTGGATAAATATGGGGATGATGTTAAGGCTATTGGTGTTTATGGCTCTCTTGGTCGTCAGACTGATGGGCCCTATTCGGATATTGAGATGATGTGTGTCATGTCAACAGAGGAAGCAGAGTTCAGCCATGAATGGACAACCGGTGAGTGGAAGGTGGAAGTGAATTTTGATAGCGAAGAGATTCTACTAGATTATGCATCTCAGGTGGAATCAGATTGGCCGCTTACACATGGTCAATTTTTCTCTATTTTGCCGATTTATGATTCAGGTGGATACTTAGAGAAAGTGTATCAAACTGCTAAATCGGTAGAAGCCCAAACGTTCCACGATGCGATTTGTGCCCTTATCGTAGAAGAGCTGTTTGAATATGCAGGCAAATGGCGTAATATTCGTGTGCAAGGACCGACAACATTTCTACCATCCTTGACTGTACAGGTAGCAATGGCAGGTGCCATGTTGATTGGTCTGCATCATCGCATCTGTTATACGACGAGCGCTTCGGTCTTAACTGAAGCAGTTAAGCAATCAGATCTTCCTTCAGGTTATGACCATCTGTGCCAGTTCGTAATGTCTGGTCAACTTTCCGACTCTGAGAAACTTCTGGAATCGCTAGAGAATTTCTGGAATGGGATTCAGGAGTGGACAGAACGACACGGATATATAGTGGATGTGTCAAAACGCATACCATTTTGAACGATGACCTCTAATAATTGTTAATCATGTTGGTTACGTATTTATTAACTTCTCCTAGTATTAGTAATTATCATGGCTGTCATGGCGCATTAACGGAATAAAGGGTGTGCTTAAATCGGGCCATTTTGCGTAATAAGAAAAAGGATTAATTATGAGCGAATTGAATTAATAATAAGGTAATAGATTTACATTAGAAAATGAAAGGGGATTTTATGCGTGAGAATGTTACAGTCTATCCCGGCATTGCCAGTCGGGGATATTAAAAAGAGTATAGGTTTTTATTGCGATAAACTAGGTTTCACTTTGGTTCACCATGAAGATGGATTCGCAGTTCTAATGTGTAATGAGGTTCGGATTCATCTATGGGAGGCAAGTGATGAAGGCTGGCGCTCTCGTAGTAATGATTCACCGGTTTGTACAGGTGCGGAGTCGTTTATTGCTGGTACTGCTAGTTGCCGCATTGAAGTAGAGGGAATTGATGAATTATATCAACATATTAAGCCTTTGGGCATTTTGCACCCCAATACATCATTAAAAGATCAGTGGTGGGATGAACGAGACTTTGCAGTAATTGATCCCGACAACAATTTGATTAGCTTTTTTCAACAAATAAAAAGCTAAAATCTATTATTAATCTGTTCAGCAATCGGGCGCGATTGCTGAATAAAAGATACGAGAGACCTCTCTTGTATCTTTTTTATTTTGAGTGGTTTTGTCCGTTACACTAGAAAACCGAAAGACAATAAAAATTTTATTCTTGCTGAGTCTGGCTTTCGGTAAGCTAGACAAAACGGACAAAATAAAAATTGGCAAGGGTTTAAAGGTGGAGATTTTTTGAGTGATCTTCTCAAAAAATACTACCTGTCCCTTGCTGATTT

Annotation:
Antitoxin Epsilon: 528-800 (Forward)
Pveg: 279-515 (Forward)
RBS Antitoxin: 516-527 (forward)
RBS Toxin: 848-857 (forward)
Riboswitch: 807-857 (forward)
Terminator: 1203-1282 (forward)
Toxin mazF: 864-1202 (forward)
Ampicillin resistance (E. coli): 2562-3221 (reverse)
Bleomycin resistance (B. subtilis): 6200-6540 (forward)
ColE1 origin (E. coli): 1782-2464 (reverse)
Kanamycin resistance (B. subtilis): 5207-5977 (forward)
Prefix: 257-278 (forward)
repU (Bacillus subtilis origin): 4043-5047 (forward)
Suffixe: 1283-1303 (forward)
Verification forward (VF2) primer binding site : 3544-3563 (forward)
Verification reverse (VR) primer binding site : 1683-1702 (forward)

References:

Bravo A, de Torrontegui G, and Díaz R (1987). Identification of components of a new stability system of plasmid R1, ParD, that is close to the origin of replication of this plasmid. Mol. Gen. Genet. 210: 101–110.
Mutschler H, Gebhardt M, Shoeman RL, and Meinhart A (2011). A novel mechanism of programmed cell death in bacteria by toxin-antitoxin systems corrupts peptidoglycan synthesis. PLoS Biol. 9, e1001033.
Topp S. and Gallivan JP (2008). Riboswitches in unexpected places—A synthetic riboswitch in a protein coding region. RNA 14: 2498–2503.
Wang X, Lord DM, Hong SH, Peti W, Benedik MJ, Page R, and Wood TK (2013). Type II Toxin/Antitoxin MqsR/MqsA Controls Type V Toxin/Antitoxin GhoT/GhoS. Environ. Microbiol. 15: 1734–1744.
Zhang Y, Zhang J, Hara H, Kato I, and Inouye M. (2005). Insights into the mRNA Cleavage Mechanism by MazF, an mRNA Interferase. J. Biol. Chem. 280: 3143–3150.
Zielenkiewicz U and Cegłowski P (2005). The Toxin-Antitoxin System of the Streptococcal Plasmid pSM19035. J. Bacteriol. 187: 6094–6105.