Enzyme Research
Research conducted at Boston University, Medical Department has updated our knowledge about enzyme research
Published in Drug Week, May 9th, 2008
"Depletion of the major heat shock protein Hsp72 leads to activation of the senescence program in a variety of tumor cell lines via both p53-dependent and p53-independent pathways. Here, we found that the Hsp72-depleted cells show defect in phosphorylation and activation of the protein kinase Chk1 by genotoxic stresses, such as UVC irradiation or camptothecin," scientists writing in the journal Cancer Research report.
"Under these conditions, phosphorylation of Rad17 was also suppressed, whereas phosphorylation of p53 at Ser(15) was not affected, indicating a specific defect in phosphorylation of a subset of the ATR kinase substrates. Similarly, suppression of...
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Source: Drug Week (2008-05-09)
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