Question: Which taxon is transcriptional attenuation of the pyrimidine operon/uracil phosphoribosyltransferase (bifunctional protein)    smi_1236 a part of ?
Answer: Streptococcus mitis B6
Answer sentence: transcriptional attenuation of the pyrimidine operon/uracil phosphoribosyltransferase (bifunctional protein) smi_1236 is a part of the taxon streptococcus mitis b6.