pTXB3
At a Glance
pTXB1, Image provided by NEB
<protect>
| Type |
Cloning & Expression |
|---|---|
| Origin of Replication |
pMB1 |
| Copy # |
~20 per cell |
| Markers |
Ampicillin |
| Link to Sequence | |
| Features |
lacI [1] |
| Accession Number |
|
| edit table |
</protect>
Notes
The pTXB1 is an E. coli vector created for expression of recombinant proteins and subsequent purification. A target gene can be inserted into the the ORF by use of the MCS upstream of the Mxe intein. The chitin-binding domain(CBD) downstream of the Mxe intein results in a target protein-intein with C-terminal chitin beads that facilitate protein purification. Release of the protein is induced by the thiol cleavage activity of the intein.
pTXB1 is identical to pTXB3 with exception that instead of the NdeI site of pTXB1, pTXB3 has an NcoI site that overlaps the intein fusion gene's methionine start codon. For a plasmid map see pTXB1.
History
Derived from pBR322, pTXB1 possesses the Mycobacterium xenopi GyrA intein; with 198 amino acids, the Mxe Gyr A gene is the smallest of any known elements for active protein splicing that is found to occur naturally.
Sources
References
See Help:References for how to manage references in EcoliWiki.
- ↑ 1.0 1.1 Dubendorff, JW & Studier, FW (1991) Controlling basal expression in an inducible T7 expression system by blocking the target T7 promoter with lac repressor. J. Mol. Biol. 219 45-59 PubMed
- ↑ 2.0 2.1 Evans, TC Jr et al. (1998) Semisynthesis of cytotoxic proteins using a modified protein splicing element. Protein Sci. 7 2256-64 PubMed
- ↑ Telenti, A et al. (1997) The Mycobacterium xenopi GyrA protein splicing element: characterization of a minimal intein. J. Bacteriol. 179 6378-82 PubMed
- ↑ Chong, S et al. (1997) Single-column purification of free recombinant proteins using a self-cleavable affinity tag derived from a protein splicing element. Gene 192 271-81 PubMed
- ↑ Watanabe, T et al. (1994) The roles of the C-terminal domain and type III domains of chitinase A1 from Bacillus circulans WL-12 in chitin degradation. J. Bacteriol. 176 4465-72 PubMed
Sequence
1 AACTACGTCA GGTGGCACTT TTCGGGGAAA TGTGCGCGGA ACCCCTATTT
51 GTTTATTTTT CTAAATACAT TCAAATATGT ATCCGCTCAT GAGACAATAA
101 CCCTGATAAA TGCTTCAATA ATATTGAAAA AGGAAGAGTA TGAGTATTCA
151 ACATTTCCGT GTCGCCCTTA TTCCCTTTTT TGCGGCATTT TGCCTTCCTG
201 TTTTTGCTCA CCCAGAAACG CTGGTGAAAG TAAAAGATGC TGAAGATCAG
251 TTGGGTGCAC GAGTGGGTTA CATCGAACTG GATCTCAACA GCGGTAAGAT
301 CCTTGAGAGT TTTCGCCCCG AAGAACGTTC TCCAATGATG AGCACTTTTA
351 AAGTTCTGCT ATGTGGCGCG GTATTATCCC GTGTTGACGC CGGGCAAGAG
401 CAACTCGGTC GCCGCATACA CTATTCTCAG AATGACTTGG TTGAGTACTC
451 ACCAGTCACA GAAAAGCATC TTACGGATGG CATGACAGTA AGAGAATTAT
501 GCAGTGCTGC CATAACCATG AGTGATAACA CTGCGGCCAA CTTACTTCTG
551 ACAACGATCG GAGGACCGAA GGAGCTAACC GCTTTTTTGC ACAACATGGG
601 GGATCATGTA ACTCGCCTTG ATCGTTGGGA ACCGGAGCTG AATGAAGCCA
651 TACCAAACGA CGAGCGTGAC ACCACGATGC CTGTAGCAAT GGCAACAACG
701 TTGCGCAAAC TATTAACTGG CGAACTACTT ACTCTAGCTT CCCGGCAACA
751 ATTAATAGAC TGGATGGAGG CGGATAAAGT TGCAGGACCA CTTCTGCGCT
801 CGGCCCTTCC GGCTGGCTGG TTTATTGCTG ATAAATCTGG AGCCGGTGAG
851 CGTGGGTCTC GCGGTATCAT TGCAGCACTG GGGCCAGATG GTAAGCCCTC
901 CCGTATCGTA GTTATCTACA CGACGGGGAG TCAGGCAACT ATGGATGAAC
951 GAAATAGACA GATCGCTGAG ATAGGTGCCT CACTGATTAA GCATTGGTAA
1001 CTGTCAGACC AAGTTTACTC ATATATACTT TAGATTGATT TACCCCGGTT
1051 GATAATCAGA AAAGCCCCAA AAACAGGAAG ATTGTATAAG CAAATATTTA
1101 AATTGTAAAC GTTAATATTT TGTTAAAATT CGCGTTAAAT TTTTGTTAAA
1151 TCAGCTCATT TTTTAACCAA TAGGCCGAAA TCGGCAAAAT CCCTTATAAA
1201 TCAAAAGAAT AGCCCGAGAT AGGGTTGAGT GTTGTTCCAG TTTGGAACAA
1251 GAGTCCACTA TTAAAGAACG TGGACTCCAA CGTCAAAGGG CGAAAAACCG
1301 TCTATCAGGG CGATGGCCCA CTACGTGAAC CATCACCCAA ATCAAGTTTT
1351 TTGGGGTCGA GGTGCCGTAA AGCACTAAAT CGGAACCCTA AAGGGAGCCC
1401 CCGATTTAGA GCTTGACGGG GAAAGCCGGC GAACGTGGCG AGAAAGGAAG
1451 GGAAGAAAGC GAAAGGAGCG GGCGCTAGGG CGCTGGCAAG TGTAGCGGTC
1501 ACGCTGCGCG TAACCACCAC ACCCGCCGCG CTTAATGCGC CGCTACAGGG
1551 CGCGTAAAAG GATCTAGGTG AAGATCCTTT TTGATAATCT CATGACCAAA
1601 ATCCCTTAAC GTGAGTTTTC GTTCCACTGA GCGTCAGACC CCGTAGAAAA
1651 GATCAAAGGA TCTTCTTGAG ATCCTTTTTT TCTGCGCGTA ATCTGCTGCT
1701 TGCAAACAAA AAAACCACCG CTACCAGCGG TGGTTTGTTT GCCGGATCAA
1751 GAGCTACCAA CTCTTTTTCC GAAGGTAACT GGCTTCAGCA GAGCGCAGAT
1801 ACCAAATACT GTCCTTCTAG TGTAGCCGTA GTTAGGCCAC CACTTCAAGA
1851 ACTCTGTAGC ACCGCCTACA TACCTCGCTC TGCTAATCCT GTTACCAGTG
1901 GCTGCTGCCA GTGGCGATAA GTCGTGTCTT ACCGGGTTGG ACTCAAGACG
1951 ATAGTTACCG GATAAGGCGC AGCGGTCGGG CTGAACGGGG GGTTCGTGCA
2001 CACAGCCCAG CTTGGAGCGA ACGACCTACA CCGAACTGAG ATACCTACAG
2051 CGTGAGCTAT GAGAAAGCGC CACGCTTCCC GAAGGGAGAA AGGCGGACAG
2101 GTATCCGGTA AGCGGCAGGG TCGGAACAGG AGAGCGCACG AGGGAGCTTC
2151 CAGGGGGAAA CGCCTGGTAT CTTTATAGTC CTGTCGGGTT TCGCCACCTC
2201 TGACTTGAGC GTCGATTTTT GTGATGCTCG TCAGGGGGGC GGAGCCTATG
2251 GAAAAACGCC AGCAACGCGG CCTTTTTACG GTTCCTGGCC TTTTGCTGGC
2301 CTTTTGCTCA CATGTTCTTT CCTGCGTTAT CCCCTGATTC TGTGGATAAC
2351 CGTATTACCG CCTTTGAGTG AGCTGATACC GCTCGCCGCA GCCGAACGAC
2401 CGAGCGCAGC GAGTCAGTGA GCGAGGAAGC TATGGTGCAC TCTCAGTACA
2451 ATCTGCTCTG ATGCCGCATA GTTAAGCCAG TATACACTCC GCTATCGCTA
2501 CGTGACTGGG TCATGGCTGC GCCCCGACAC CCGCCAACAC CCGCTGACGC
2551 GCCCTGACGG GCTTGTCTGC TCCCGGCATC CGCTTACAGA CAAGCTGTGA
2601 CCGTCTCCGG GAGCTGCATG TGTCAGAGGT TTTCACCGTC ATCACCGAAA
2651 CGCGCGAGGC AGCTGCGGTA AAGCTCATCA GCGTGGTCGT GCAGCGATTC
2701 ACAGATGTCT GCCTGTTCAT CCGCGTCCAG CTCGTTGAGT TTCTCCAGAA
2751 GCGTTAATGT CTGGCTTCTG ATAAAGCGGG CCATGTTAAG GGCGGTTTTT
2801 TCCTGTTTGG TCACTGATGC CTCCGTGTAA GGGGGATTTC TGTTCATGGG
2851 GGTAATGATA CCGATGAAAC GAGAGAGGAT GCTCACGATA CGGGTTACTG
2901 ATGATGAACA TGCCCGGTTA CTGGAACGTT GTGAGGGTAA ACAACTGGCG
2951 GTATGGATGC GGCGGGACCA GAGAAAAATC ACTCAGGGTC AATGCCAGCC
3001 GAACGCCAGC AAGACGTAGC CCAGCGCGTC GGCCGCCATG CCGGCGATAA
3051 TGGCCTGCTT CTCGCCGAAA CGTTTGGTGG CGGGACCAGT GACGAAGGCT
3101 TGAGCGAGGG CGTGCAAGAT TCCGAATACC GCAAGCGACA GGCCGATCAT
3151 CGTCGCGCTC CAGCGAAAGC GGTCCTCGCC GAAAATGACC CAGAGCGCTG
3201 CCGGCACCTG TCCTACGAGT TGCATGATAA AGAAGACAGT CATAAGTGCG
3251 GCGACGATAG TCATGCCCCG CGCCCACCGG AAGGAGCTGA CTGGGTTGAA
3301 GGCTCTCAAG GGCATCGGTC GAGATCCCGG TGCCTAATGA GTGAGCTAAC
3351 TTACATTAAT TGCGTTGCGC TCACTGCCCG CTTTCCAGTC GGGAAACCTG
3401 TCGTGCCAGC TGCATTAATG AATCGGCCAA CGCGCGGGGA GAGGCGGTTT
3451 GCGTATTGGG CGCCAGGGTG GTTTTTCTTT TCACCAGTGA GACGGGCAAC
3501 AGCTGATTGC CCTTCACCGC CTGGCCCTGA GAGAGTTGCA GCAAGCGGTC
3551 CACGCTGGTT TGCCCCAGCA GGCGAAAATC CTGTTTGATG GTGGTTAACG
3601 GCGGGATATA ACATGAGCTG TCTTCGGTAT CGTCGTATCC CACTACCGAG
3651 ATATCCGCAC CAACGCGCAG CCCGGACTCG GTAATGGCGC GCATTGCGCC
3701 CAGCGCCATC TGATCGTTGG CAACCAGCAT CGCAGTGGGA ACGATGCCCT
3751 CATTCAGCAT TTGCATGGTT TGTTGAAAAC CGGACATGGC ACTCCAGTCG
3801 CCTTCCCGTT CCGCTATCGG CTGAATTTGA TTGCGAGTGA GATATTTATG
3851 CCAGCCAGCC AGACGCAGAC GCGCCGAGAC AGAACTTAAT GGGCCCGCTA
3901 ACAGCGCGAT TTGCTGGTGA CCCAATGCGA CCAGATGCTC CACGCCCAGT
3951 CGCGTACCGT CTTCATGGGA GAAAATAATA CTGTTGATGG GTGTCTGGTC
4001 AGAGACATCA AGAAATAACG CCGGAACATT AGTGCAGGCA GCTTCCACAG
4051 CAATGGCATC CTGGTCATCC AGCGGATAGT TAATGATCAG CCCACTGACG
4101 CGTTGCGCGA GAAGATTGTG CACCGCCGCT TTACAGGCTT CGACGCCGCT
4151 TCGTTCTACC ATCGACACCA CCACGCTGGC ACCCAGTTGA TCGGCGCGAG
4201 ATTTAATCGC CGCGACAATT TGCGACGGCG CGTGCAGGGC CAGACTGGAG
4251 GTGGCAACGC CAATCAGCAA CGACTGTTTG CCCGCCAGTT GTTGTGCCAC
4301 GCGGTTGGGA ATGTAATTCA GCTCCGCCAT CGCCGCTTCC ACTTTTTCCC
4351 GCGTTTTCGC AGAAACGTGG CTGGCCTGGT TCACCACGCG GGAAACGGTC
4401 TGATAAGAGA CACCGGCATA CTCTGCGACA TCGTATAACG TTACTGGTTT
4451 CACATTCACC ACCCTGAATT GACTCTCTTC CGGGCGCTAT CATGCCATAC
4501 CGCGAAAGGT TTTGCGCCAT TCGATGGTGT CCGGGATCTC GACGCTCTCC
4551 CTTATGCGAC TCCTGCATTA GGAAGCAGCC CAGTAGTAGG TTGAGGCCGT
4601 TGAGCACCGC CGCCGCAAGG AATGGTGCAT GCCGGCATGC CGCCCTTTCG
4651 TCTTCAAGAA TTAATTCCCA ATTCCCCAGG CATCAAATAA AACGAAAGGC
4701 TCAGTCGAAA GACTGGGCCT TTCGTTTTAT CTGTTGTTTG TCGGTGAACG
4751 CTCTCCTGAG TAGGACAAAT CCGCCGGGAG CGGATTTGAA CGTTGCGAAG
4801 CAACGGCCCG GAGGGTGGCG GGCAGGACGC CCGCCATAAA CTGCCAGGAA
4851 TTAATTCCCC AGGCATCAAA TAAAACGAAA GGCTCAGTCG AAAGACTGGG
4901 CCTTTCGTTT TATCTGTTGT TTGTCGGTGA ACGCTCTCCT GAGTAGGACA
4951 AATCCGCCGG GAGCGGATTT GAACGTTGCG AAGCAACGGC CCGGAGGGTG
5001 GCGGGCAGGA CGCCCGCCAT AAACTGCCAG GAATTAATTC CCCAGGCATC
5051 AAATAAAACG AAAGGCTCAG TCGAAAGACT GGGCCTTTCG TTTTATCTGT
5101 TGTTTGTCGG TGAACGCTCT CCTGAGTAGG ACAAATCCGC CGGGAGCGGA
5151 TTTGAACGTT GCGAAGCAAC GGCCCGGAGG GTGGCGGGCA GGACGCCCGC
5201 CATAAACTGC CAGGAATTAA TTCCCCAGGC ATCAAATAAA ACGAAAGGCT
5251 CAGTCGAAAG ACTGGGCCTT TCGTTTTATC TGTTGTTTGT CGGTGAACGC
5301 TCTCCTGAGT AGGACAAATC CGCCGGGAGC GGATTTGAAC GTTGCGAAGC
5351 AACGGCCCGG AGGGTGGCGG GCAGGACGCC CGCCATAAAC TGCCAGGAAT
5401 TAATTCCCCA GGCATCAAAT AAAACGAAAG GCTCAGTCGA AAGACTGGGC
5451 CTTTCGTTTT ATCTGTTGTT TGTCGGTGAA CGCTCTCCTG AGTAGGACAA
5501 ATCCGCCGGG AGCGGATTTG AACGTTGCGA AGCAACGGCC CGGAGGGTGG
5551 CGGGCAGGAC GCCCGCCATA AACTGCCAGG AATTGGGGAT CGGAATTAAT
5601 TCCCGGTTTA AACCGGGGAT CTCGATCCCG CGAAATTAAT ACGACTCACT
5651 ATAGGGGAAT TGTGAGCGGA TAACAATTCC CCTCTAGAAA TAATTTTGTT
5701 TAACTTTAAG AAGGAGATAT ACATATGGCT AGCTCGCGAG TCGACGGCGG
5751 CCGCGAATTC CTCGAGGGCT CTTCCTGCAT CACGGGAGAT GCACTAGTTG
5801 CCCTACCCGA GGGCGAGTCG GTACGCATCG CCGACATCGT GCCGGGTGCG
5851 CGGCCCAACA GTGACAACGC CATCGACCTG AAAGTCCTTG ACCGGCATGG
5901 CAATCCCGTG CTCGCCGACC GGCTGTTCCA CTCCGGCGAG CATCCGGTGT
5951 ACACGGTGCG TACGGTCGAA GGTCTGCGTG TGACGGGCAC CGCGAACCAC
6001 CCGTTGTTGT GTTTGGTCGA CGTCGCCGGG GTGCCGACCC TGCTGTGGAA
6051 GCTGATCGAC GAAATCAAGC CGGGCGATTA CGCGGTGATT CAACGCAGCG
6101 CATTCAGCGT CGACTGTGCA GGTTTTGCCC GCGGAAAACC CGAATTTGCG
6151 CCCACAACCT ACACAGTCGG CGTCCCTGGA CTGGTGCGTT TCTTGGAAGC
6201 ACACCACCGA GACCCGGACG CCCAAGCTAT CGCCGACGAG CTGACCGACG
6251 GGCGGTTCTA CTACGCGAAA GTCGCCAGTG TCACCGACGC CGGCGTGCAG
6301 CCGGTGTATA GCCTTCGTGT CGACACGGCA GACCACGCGT TTATCACGAA
6351 CGGGTTCGTC AGCCACGCTA CTGGCCTCAC CGGTCTGAAC TCAGGCCTCA
6401 CGACAAATCC TGGTGTATCC GCTTGGCAGG TCAACACAGC TTATACTGCG
6451 GGACAATTGG TCACATATAA CGGCAAGACG TATAAATGTT TGCAGCCCCA
6501 CACCTCCTTG GCAGGATGGG AACCATCCAA CGTTCCTGCC TTGTGGCAGC
6551 TTCAATGACT GCAGGAAGGG GATCCGGCTG CTAACAAAGC CCGAAAGGAA
6601 GCTGAGTTGG CTGCTGCCAC CGCTGAGCAA TAACTAGCAT AACCCCTTGG
6651 GGCCTCTAAA CGGGTCTTGA GGGGTTTTTT GCTGAAAGGA GGAACTATAT
6701 CCGGAT
