The Journal of biological chemistry, 269(48), 30461-30469 (1994-12-02)
Human Cdc25C is a protein phosphatase that dephosphorylates and activates Cdc2-cyclin B to trigger entry into mitosis. Cdc25C is itself regulated by phosphorylation. In asynchronously growing HeLa cells, we have determined that serine 216 is the major site of Cdc25C
Journal of molecular biology, 182(4), 579-587 (1985-04-20)
We have purified the type I restriction enzymes SB and SP from Salmonella typhimurium and S. potsdam, respectively, and determined the DNA sequences that they recognize. These sequences resemble those previously determined for the type I enzymes, EcoB, EcoK and
The Journal of biological chemistry, 263(23), 11130-11137 (1988-08-15)
We have determined that 3 mol of ATP or other adenine nucleotide can bind to Escherichia coli transcription termination protein rho, in the presence or absence of the RNA cofactor that is required for activation of rho's ATPase activity. Isotope
The Journal of biological chemistry, 272(48), 30228-30236 (1997-12-31)
The RepA protein of the mobilizable broad host range plasmid RSF1010 has a key function in its replication. RepA is one of the smallest known helicases. The protein forms a homohexamer of 29,896-Da subunits. A variety of methods were used
Two polynucleotide-dependent ATPases, 95 and 181 kDa in size, have been purified to near homogeneity from cell-free extracts of Schizosaccharomyces pombe. Despite their size differences, their biochemical properties were strikingly similar. Both enzymes were capable of unwinding RNA and DNA
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.