Tritz G J, Matney T S, Chandler J L, Gholson R K
J Bacteriol. 1970 Oct;104(1):45-9. doi: 10.1128/jb.104.1.45-49.1970.
A gene involved in the synthesis of nicotinamide adenine dinucleotide has been found to be cotransducible with the genes involved in the utilization of arabinose (ara) and the biosynthesis of leucine (leu) and pantothenate (pan). Cotransduction frequency analysis places this nadC locus between leu and pan at approximately minute 1.5 on the genetic map of Escherichia coli. This gene codes for the enzyme, quinolate phosphoribosyl transferase, which catalyzes the conversion of quinolinic acid to nicotinic acid mononucleotide.
已发现一个参与烟酰胺腺嘌呤二核苷酸合成的基因与参与阿拉伯糖(ara)利用、亮氨酸(leu)生物合成以及泛酸(pan)生物合成的基因共转导。共转导频率分析将这个nadC基因座定位在大肠杆菌遗传图谱上大约1.5分钟处的leu和pan之间。该基因编码喹啉酸磷酸核糖基转移酶,该酶催化喹啉酸转化为烟酸单核苷酸。