Establishment of a low‐dosage‐IPTG inducible expression system construction method in <i>Escherichia coli</i> is a research paper published in Journal of Basic Microbiology (2018). On theSindex it has a DataRank of 0.871. It has been cited 13 times, with 12 citing works in its 1-hop citation network.
The lac operon is a delicate inducible gene expression element in bacteria. To efficiently induce gene expression, a sufficient dosage of an inducer, usually that of 500–1000 µM isopropyl β‐D‐1‐thiogalactopyranoside (IPTG), is required to keep repressor LacI from its binding sites, which is a heavy cost burden in low‐value‐added products. So we propose a strategy to reduce the required dosage of IPTG by restricting LacI expression. To test this strategy, we employed a reconstructed IPTG inducible expression system based on lac operon, Promoter(lacO)‐target gene‐PtacL‐lacI, where a modified promoter, Ptac, with a random synthetic library (PtacL) to instead of PlacI to optimize LacI expression in Escherichia coli. Finally, the PtacL mutant, PtacL4, which could maintain the same repression effect as the original PlacI while reducing the required dosage of IPTG from 500 to 20 µM, was selected. This method is simple and efficient and can be of a good reference point for attempts to reduce inducer concentration in the IPTG or similar inducible expression systems.
FAIR checklist signals are shown for context only and do not affect DataRank scoring.
Base Score Contribution
0.396
From this paper's citation signal
Citation Network Contribution
0.475
From 10 citing papers with measurable signal
Ranked by citation count — the same ordering the engine uses when summing log1p(Cq) over citers.
DataRank blends this paper's own citation count with the influence of the papers that cite it. Here, roughly 45% comes from its base citations and 55% from the citation network (10 citing papers contributed measurable signal).
Citers are pulled from OpenAlex sorted by cited_by_count:descand capped per paper, so when the cap binds we keep the highest-signal references and the score is reproducible across reruns.
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