BBa_K152010
1
BBa_K152010
TB1 RNAi construct
2008-10-30T12:00:00Z
2015-05-08T01:10:49Z
Mix of two biobricks
This is meant to be cut out using NdeI and PstI for ligation downstream of the strong promoter pDSK-GFPuv, followed by electroporation into the corn endophyte Klebsiella pneumonii 342. The expected goal is to see transcriptional knockdown of the gene in the plant when these bacteria are injected into it.
false
false
_233_
0
2886
9
It's complicated
false
This part MAY have been made incorrectly (the antisense fragment got inserted in the sense orientation by accident). Stay tuned or try it out yourself to see what's up.
false
David Johnston Monje
component2218703
1
BBa_K152009
component2218702
1
BBa_K152008
annotation2218702
1
BBa_K152008
range2218702
1
1
232
annotation2218703
1
BBa_K152009
range2218703
1
241
465
BBa_K152008
1
BBa_K152008
250 bp fragment from the Zea mays gene TB1
2008-10-30T12:00:00Z
2015-05-08T01:10:49Z
This was amplified from genomic DNA of Mo17 inbred corn.
This 250 bp region of the TB1 gene (Genebank Index 16305302) was made to have XbaI and SpeI sites so it could be used to generate an RNAi device in BBa_K15009.
false
false
_233_
0
2886
9
It's complicated
false
Just to make it biobrick compliant.
false
David Johnston Monje
BBa_K152009
1
BBa_K152009
Zea mays Actin1 Intron RNAi Production Tool
2008-10-30T12:00:00Z
2015-05-08T01:10:49Z
Template free PCR using two complimentary primers donated by IDT: one 60 bp long, and the other 200 bp long.
This short construct was designed to allow ANY biobrick (likely size dependant) to be used in the production of an RNAi construct for expression in bacteria. It replaces the standard biobrick restriction site conformation with an altered one for sense (EcoRI and XbaI) and antisense (NotI and SpeI) fragment placement. The small 100 bp intron the the Actin1 gene (Genebank Index 168403) of Zea mays was picked as the heart of this construct since plant RNAi constructs with hairpin loops made by introns produce much higher rates of transcriptional silencing [Nature 407, 319-320 (21 September 2000)]. On either side of the intron are cloning sites for sense and antisense fragments. The antisense fragment has to be inserted first, by cutting the plasmid with NotI and SpeI, while cutting the antisense fragment with NotI and XbaI and ligating them together. Next, the sense fragment is meant to be inserted by cutting the RNAi construction tool (now containing the same fragment in the antisense orientation) with EcoRI and Xba, while cutting the sense fragment with EcoRI and SpeI and ligating the two together. As there is a transcriptional termination signal programmed into the 3' end, all this needs now is a promoter and double stranded RNA should be churned out large amounts by your bacteria of choice.
Note: the intron was reprogrammed to contain an efficient rbs and NcoI and AvrII restriction sites for the possible inclusion of a reporter gene in the loop region of the construct.
false
false
_233_
0
2886
9
It's complicated
true
In order to utilize existing biobricks to make RNAi constructs, it was necessary to re-organize restriction site placement. The part is housed in the Biobrick plasmid pSB1A2 which was cut with EcoRI and PstI, and ligated to the MfeI and PstI cut RNAi tool. The PstI site was conserved, but MfeI and EcoRI are non-conservative compatible ends and so the plasmid's EcoRI site was killed allowing the construct's intrenal EcoRI site to be unique. The construct ends up having this structure:
NdeI - EcoRI - XbaI - Intron - NotI - SpeI - Terminator - PstI
true
David Johnston Monje
BBa_K152009_sequence
1
ttgatcatatgatgaattccattctagacaactggtaagatggctgtcgcctcagatatatatagtgatatgcactacaaagaggaggatagtccatggcactacaacctaggtctctttgtcaaatatctctgtgtgcaggtattgtgatggactagtatgcggccgcatgaggaggaaaaaaaaaccccgcccctgacagggcggggttttttttctgcagaa
BBa_K152008_sequence
1
agagcccctccacaagccgtgatcaactcgccggacctgccggtgcaggcgctgatggaccacgcgccggcgccggctacagagctgggcgcctgcgccagtggtgcagaaggatccggcgccagcctcgacagggcggctgccgcggcgaggaaagaccggcacagcaagatatgcaccgccggcgggatgagggaccgccggatgcggctctcccttgacgtcgcgtact
BBa_K152010_sequence
1
agagcccctccacaagccgtgatcaactcgccggacctgccggtgcaggcgctgatggaccacgcgccggcgccggctacagagctgggcgcctgcgccagtggtgcagaaggatccggcgccagcctcgacagggcggctgccgcggcgaggaaagaccggcacagcaagatatgcaccgccggcgggatgagggaccgccggatgcggctctcccttgacgtcgcgtacttactagagttgatcatatgatgaattccattctagacaactggtaagatggctgtcgcctcagatatatatagtgatatgcactacaaagaggaggatagtccatggcactacaacctaggtctctttgtcaaatatctctgtgtgcaggtattgtgatggactagtatgcggccgcatgaggaggaaaaaaaaaccccgcccctgacagggcggggttttttttctgcagaa
igem2sbol
1
iGEM to SBOL conversion
Conversion of the iGEM parts registry to SBOL2.1
Chris J. Myers
James Alastair McLaughlin
2017-03-06T15:00:00.000Z