Words similar to aroa
Example sentences for: aroa
How can you use “aroa” in a sentence? Here are some example sentences to help you improve your vocabulary:
These include the overall gene organization of the trp operon, for which many microbial patterns are known; the extremely rare gene order of trpEa trpEb instead of the typical order trpEb trpEa; the fusion of genes encoding the alpha ( trpAa ) and beta ( trpAb ) subunits of anthranilate synthase, a fusion that exists in only a limited number of other taxa, and the presence of operonic genes exhibiting distinctive homology subtypes ( aroA Iβ and tyrA (p) ).
In cases where different homolog classes are known to exist, these analog groups are designated with Roman numerals, for example, AroA I or AroA II . Different subgroups within a homology class are usually distinguished with α, β, and γ designations.
Many years ago, B. subtilis was shown to have fused domains specifying chorismate mutase ( aroQ ) and 3-deoxy-D-arabino-heptulosonate 7-P (DAHP) synthase ( aroA ). The AroQ domain was shown to function not only as a catalytic domain for chorismate mutase, but also as the allosteric domain for the fused AroA domain.
Thus, Anabaena has two additional extra-operonic paralogs of aroA Iβ and trpD . In addition to extra-operonic, free-standing copies of trpAa and trpAb , a second fused gene ( trpAa • trpAb_2 ) encoding the two domains of anthranilate synthase is present in Anabaena . Nostoc has two extra-operonic copies of aroA Iβ , aroB and trpD . All cyanobacteria possess AroA of the Iβ class ( aroA Iβ ). While this is also true of the Anabaena/Nostoc lineage (in fact, having multiple copies), both Anabaena and Nostoc possess an additional gene encoding AroA of the Iα class ( aroA Iα ). All cyanobacteria possess a tyrA gene of the arogenate-specificity class ( tyrA a ), but the Anabaena/Nostoc supraoperons also possess a tyrA gene deemed to be a cyclohexadienyl dehydrogenase [ 28] with a favored specificity for prephenate ( tyrA (p) ) (C.A.B.
This aroQ•aroA fusion also occurs in Staphylococcus and in Deinococcus.
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