Words similar to supraoperon
Example sentences for: supraoperon
How can you use “supraoperon” in a sentence? Here are some example sentences to help you improve your vocabulary:
The Anabaena/Nostoc linkage group is additionally reminiscent of the B. subtilis supraoperon in the presence of aroB and tyrA . Although B. subtilis does not have aroA Iβ represented in its supraoperon (as do Anabaena and Nostoc ), aroA Iβ is the homology class (of three possible DAHP synthase homologs distributed in nature [ 25, 26, 27]) that is utilized by B. subtilis . A number of supraoperon gene insertions have occurred outside of the trp operon as well.
Since the basic single-copy repertoire of dispersed aromatic-pathway genes shown in Figure 2for Synechocystis (Ssp) is representative of other cyanobacteria such as Synechococcus (Syn) and Prochlorococcus (Pmu) and is also present at dispersed extra-operonic loci of Anabaena and Nostoc , an obvious possibility would seem to be that the genes of the supraoperon originated by LGT in a common ancestor of Anabaena and Nostoc . If so, speciation was followed by different species-specific gene-insertion events.
Among cyanobacteria, only Nostoc has homologs of these two Anabaena genes, although they are not inserted in the Nostoc supraoperon.
In their genomes outside the supraoperon boundaries, Nostoc and Anabaena possess a full complement of genes for biosynthesis of tryptophan, tyrosine and phenylalanine.
A number of distinctive properties of the supraoperon gene block represent items of biological context (as discussed by Lawrence and Ochman [ 21]) that potentially could provide excellent tracking clues about the identity of the putative donor in LGT.
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