csrA

pleiotropic regulatory protein for carbon sourcemetabolism
BBF10K_001092
source
Escherichia coli str. K-12 substr. MG1655

Binds to and is sequestered by non-coding small RNAs (sRNA) CsrB and CsrC which antagonize the activity of CsrA (PubMed:9211896, PubMed:12694612). The consensus RNA-binding site is CAGGA(U/A/C)G which is located in probable hairpin loops (PubMed:9211896). There are 18 sites in CsrB, which cooperatively binds about 18 copies of CsrA (PubMed:9211896, PubMed:12694612). CsrC has 9 sites, and cooperatively binds multiple copies of CsrA (PubMed:12694612). Indirectly activates expression of CsrB and CsrC, both dependently and independently of the BarA-UvrY two-component system (PubMed:12193630, PubMed:12694612). ppGpp activates transcription of CsrA-antagonistic small RNAs CsrB and CsrC, which downregulates CsrA's action on translation during the stringent response (PubMed:21488981).

attr.
Keoni Gandall

Usage

growth

shipping strain
Escherichia coli Top10
growth conditions
37 C, shaking 300 rpm
antibiotic
ampicillin

expression

strain
N/A
promoter
N/A
inducer
N/A

cloning

method
GoldenGate
enzyme
BsaI
overhangs
3' - AATG … GCTT - 5'

sequencing

forward primer
M13 For
reverse primer
M13 Rev

Construct

plasmid name
pOpen-csrA
plasmid size
2381
insert size
186
origin
ColE1 High Copy
copy number
500-700

Safety

BSL
BSL1

other information

No Value

References

primary references

UniProt
Available Elsewhere
FALSE

citations

[1] Calles, J., Justice, I., Brinkley, D., Garcia, A. & Endy, D. Fail-safe genetic codes designed to intrinsically contain engineered organisms. Nucleic Acids Res. (2019). doi:10.1093/nar/gkz745 [2] Baba, T. et al. Construction of Escherichia coli K-12 in-frame, single-gene knockout mutants: the Keio collection. Mol. Syst. Biol. 2, 2006.0008 (2006)

intellectual property

We are unaware of third-party property rights claims on uses of this item as of 2018-07-02.