Words similar to operon
Example sentences for: operon
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Genes encoding the two anthranilate synthase subunits ( trpAa and trpAb ) and aryl-CoA ligase ( acl ) surely belong to an operon, as translational coupling is evident from the overlap of start and stop codons (Figure 4).
0 (Genetics Computer Group) and synthesized by Operon Technologies, Inc.
The ars operon consists of a group of genes coding for a transmembrane pump and an arsenate reductase ( arsC ). The operon includes a regulatory gene ( arsR ) and a gene coding for an arsenite-specific pump ( arsB ) as well as arsC [ 13 ] . Arsenite is pumped directly out of the cell by the arsB protein; however arsenate must first be reduced to arsenite by the cytoplasmic arsenate reductase coded from arsC . Some bacteria also possess other ars genes: arsA produces an arsenite-stimulated ATPase [ 14 ] that results in more efficient arsenite extrusion; arsD encodes for a regulatory protein that controls the upper level of ars expression [ 15 ] ; arsH has been identified but has an uncertain function [ 16 ] . The ars operon was initially recognized in plamids of Staphylococcus aureus and S. xylosus [ 17 18 ] but has subsequently been found in other microorganisms (e.g.
kynU encoding kynureninase and kprS (alternative name: prsA ) encoding PRPP synthase are located at the 3' end of the C. psittaci trp operon (see Figure 1).
The tryptophan operon of C. psittaci exhibits further striking aspects of novelty.