Wallace B J, Pittard J
J Bacteriol. 1967 Jan;93(1):237-44. doi: 10.1128/jb.93.1.237-244.1967.
Mutant strains of Escherichia coli K-12 were isolated possessing mutations which affected the tyrosine-inhibitable 3-deoxy-d-arabinoheptulosonic acid-7-phosphate (DAHP) synthetase, the phenylalanine-inhibitable DAHP synthetase, or the tryptophan-repressible DAHP synthetase. The mutations causing the loss of each of these activities have been mapped and are widely separated from each other on the E. coli chromosome. Chromatography on diethylaminoethyl cellulose columns allowed the recognition of four peaks of activity.
分离出了大肠杆菌K-12的突变菌株,这些菌株具有影响酪氨酸可抑制的3-脱氧-D-阿拉伯庚酮糖酸-7-磷酸(DAHP)合成酶、苯丙氨酸可抑制的DAHP合成酶或色氨酸可阻遏的DAHP合成酶的突变。导致这些活性丧失的突变已被定位,并且在大肠杆菌染色体上彼此相距很远。在二乙氨基乙基纤维素柱上进行色谱分析可识别出四个活性峰。