OGS50
PSF-OXB20 - STRONG BACTERIAL PROMOTER PLASMID
plasmid vector for molecular cloning
Sinônimo(s):
cloning vector, expression vector, molecular cloning vector, plasmid, plasmid vector, snapfast vector, vector
About This Item
Produtos recomendados
forma
buffered aqueous solution
peso molecular
size 3857 bp
seleção de bactérias
kanamycin
Origem de replicação
pUC (500 copies)
clivagem do peptídeo
no cleavage
Promotor
Promoter name: OXB20
Promoter activity: constitutive
Promoter type: bacterial
gene repórter
none
Condições de expedição
ambient
temperatura de armazenamento
−20°C
Descrição geral
Promoter Expression Level: This plasmid contains a constitutive bacterial promoter that does not require induction. It is the strongest bacterial promoter we sell and this can cause solubility and expression problems with some proteins. We also offer a range of other bacterial promoters that are compatible with this plasmid and are available on request.
Aplicação
Multiple cloning site notes: There are a few important sites within the MCS. These include the NcoI site the XbaI site and the BsgI and BseRI sites. The NcoI site contains a start codon that is immediately downstream of both a Kozak and Shine-Dalgarno ribosomal binding site. These allow for optimal positioning of genes when the start codon is placed in this location. If this is not required and you wish to use a downstream site for gene cloning you can remove the NcoI site by cleaving the plasmid with KpnI.
The XbaI site contains a stop codon. This stop codon is positioned in a specific position in relation to the BsgI and BseRI sites that are immediately downstream. When either BseRI or BsgI cleave the plasmid they produce a TA overhang from the stop codon in the XbaI site that is compatible with all of our peptide tag plasmids cut with the same sites. BseRI and BsgI sites are non-palindromic and cleave a defined number of bases away from their binding site.
Whenever we clone a gene into our multiple cloning site we always position the start and stop codon in the same positions in the MCS. If the start and ends of the genes are not compatible with NcoI and XbaI we extend the sequence to the nearest external sites but keep the start and stop codons locations consistent.
Sequência
Nota de análise
produto relacionado
Código de classe de armazenamento
12 - Non Combustible Liquids
Ponto de fulgor (°F)
Not applicable
Ponto de fulgor (°C)
Not applicable
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Artigos
Learn more about relevant restriction site functions in the SnapFast™ plasmid system. All DNA sections are pre-screened, and where possible modified, to remove any of the restriction sites found within the core SnapFast plasmids to maintain their flexibility.
A range of forward and reverse sequencing primers that allow you to sequence any insert that you make into a particular position within any plasmid. Where possible, the binding sites for each of these primers is conserved.
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