7.6.2.11 | potABCD operon, genetic organization analysis, only one operon encoding a polyamine transport system (potABCD) is identified in the Streptococcus suis genome, sequence comparisons, the putative potABCD operon is co-transcribed with gene murB encoding UDP-N-acetylenolpyruvoylglucosamine reductase, EC 1.3.1.98, quantitative real-time PCR expression analysis of murB-potABCD operon in both wild-type and DELTApotA mutant strains. Recombinant expression of genes potA and potD, encoding PotA and PotD, in Escherichia coli strain BL21(DE3) as His-tagged proteins |