Insurance for furry friends is a hit with investors and pet owners alike Xiao Du,a 28-year-old accountant living in Qingdao,Shandong Province,is the proud owner of no fewer than six cats and one dog,all of whom she fo...
This work was supported by the National Natural Science Foundation of China(Grant No.30070419).
Transcription of the Bacillus subtilis pur operon is regulated by a purine repressor (PurR)-DNA control site interaction. The pur operon control site has two PurBoxes that are re- quired for high-affinity PurR binding...
Supported by the National Natural Science Foundation of China (Grant No. 39970008)
In our previous research in purine metabolism in Salmonella typhimurium, it was observed that the mutation frequency of the PUR box was one order of magnitude higher than that of purR under mutagenesis. In order to in...
Thiswork was supported by the National Natural Science Foundation of China.
Salmonella typhimurium purB encodes adeny-losuccinate lyase (ASL), the enzyme that catalyzes step 8 in the pathway for de novo synthesis of inosine 5’-monophos-phate (IMP) and also the final reaction in the two-step ...
the National Natural Science Foundation of China (Grant No. 39770011).
The amber mutation sites of 6 purR(am) mutants were determined by cloning and DMA sequencing. The results showed that the mutations were distributed at three different sites in PurR coding region, G721(→A), C933(→T)...