Induced Transcriptional Expression of Bacillus subtilis Amino Acid Permease yvbW in Response to Leucine Limitation
Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=47407#.VMiWVSzQrzE Author(s) Sean M. Rollins Affiliation(s) Department of Biology and Chemistry, Fitchburg State University, Fitchburg, USA . ABSTRACT <span "="">T box sequences have been identified upstream of a large number of uncharacterized genes such as transporters in bacterial genomes. Expression of each T box family gene is induced by limitation for a specific amino acid. T box family genes contain an untranslated leader region containing a factor-independent transcriptional terminator upstream of the structural genes. The anticodon of uncharged tRNA base-pairs with the leader mRNA at a codon referred to as the specifier sequence, inducing formation of an alternative antiterminator structure, allowing expression of the structural genes. There are several additional conserved primary sequence and secondary structural elements. Analysi...