It is generally assumed that all bacteria must have at least one rRNA operon (rrnoperon) on the chromosome, but some strains of the generaAureimonasandOecophyllibactercarry their solerrnoperon on a plasmid. However, other related strains and species have chromosomalrrnloci, suggesting that the ...
the circuitry can be drawn in similar terms forregulating initiation of transcription on DNA or initiation of translation on RNA.The basic concept for how transcription is controlled in bacteria was provided by theclassic formulation of the model for control of gene expression by Jacob and Monodin...
This reaction enables bacteria to utilize lactose as a carbon source when glucose is not available. The regulatory mechanism of the lac system, known as the operon model, was the first system described in detail, and it defines most of the terminology and concepts in current use. The ...
In bacteria, in contrast to higher organisms, two or more genes may be expressed from one mRNA. This affords an opportunity for co-regulation of the expression of multiple genes, by regulating the level of transcription. Such genes are said to formoperons. Frequently, as in the example ofla...
Some of the most studied nitrogen-fixing bacteria are Sinorhizobium medicae (syn. Ensifer) and S. meliloti due to their symbiotic interactions with the model legume species Medicago truncatula and alfalfa (M. sativa) [18, 19], and Rhizobium leguminosarum bv. trifolii which mainly interacts with ...
The model of operon structure proposed by Jacob and Monod invoked a group of contiguous genes regulated by a common promoter in bacteria1. The resulting polycistronic transcripts can be several kilobases (kb) long and encode several proteins usually associated with the same function or metabolic pat...
regions around stop codons across bacteria (warm colors: stronger folding than expected; cool colors: weaker folding than expected). The purple bar, left of each species heatmap, represents the fraction of genes in which RTS was found under the RTS statistical model described in the Methods ...
We did not run cross validation in RFs, as the test set error is internally estimated. However, in order to compare the different classifiers, we run our RF-based model for ten times on the training set and calculated every time the evaluation metrics. Finally, the three models were compare...
Then three initial values of the mRNA concentration were chosen slightly below its steady value on the middle branch and another three initials were chosen slightly above its steady state concentration on the same branch and the model equations in Eqs. (12.25)–(12.29) was solved numerically for...
plasmids. The statistical significance of the differences in biofilm formation and swimming motility was Materials and methods inferred using a log-linear model in conjunction with a Tukey-type (all-against-all) contrast as implemented Biofilm formation assay We analyzed biofilm formation of 33 ...