Jen Funn Lee

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The electron paramagnetic resonance (EPR) spin labeling technique has been employed to study the properties and conformation of the thiol protease papain in solution, using (1-oxyl-2,2,5,5-tetramethyl-delta 3-pyrroline-3-methyl) methanethiosulfonate (MTS) as the spin label. The measurements of papain's amidase activity corroborate the EPR results. The major(More)
In IEEE 802.11 wireless networks, continuous connectivity which allows user mobility and maintains network utilization is one of the most important requirements. In order to establish and keep service state information during the handoff process, the context transfer protocol is used to transfer service state from the originally associated base station to(More)
Methoxyacetic acid (MAA), a teratogenic toxin, is the major metabolite of ethylene glycol monomethyl ether (EGME, also referred to as 2-methoxyethanol, 2-ME). MAA causes a wide range of toxic effects in laboratory animals including reproductive and developmental toxicity, as well as hematotoxicity, by mechanisms that are not clear. In this study, we(More)
*J. Xiong and D. Todorova contributed equally to this paper. Correspondence to Yang Xu: J. Xiong’s present address is the National Institutes of Health, Bethesda, MD 20892. Abbreviations used in this paper: ATM, Ataxia Telangiectasia Mutated; ChIP, chromatin immunoprecipitation; CMV, cytomegalovirus; dsDNA, doublestranded DNA; DDR, DNA(More)
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