The band corresponding to aro G gene product was shown on SDS polyacrylamide gel electrophoresis, and the DAHP syntase acivity was detected in the culture medium.

• 在SDS 聚丙烯酰胺凝胶电泳上可以明显看到与aroG基因表达产物分子质量一致的蛋白条带 ；并在培养基中可以检测到DAHP合成酶的活性 .