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Cyclic AMP was the first second messenger to be identified. After five decades of research, much is currently known about its biological functions and clinical implications. Several components of the cAMP signalling pathways, such as the G-protein coupled receptors and the phosphodiesterases, have become sensitive and specific drug targets for a host of(More)
This study reports the identification and characterization of a cAMP-specific phosphodiesterase from the parasitic hemoflagellate Trypanosoma brucei. TbPDE2A is a class I phosphodiesterase. Its catalytic domain exhibits 30-40% sequence identity with those of all 11 mammalian phosphodiesterase (PDE) families, as well as with PDE2 from Saccharomyces(More)
DNA methyltransferase 3B (DNMT3B) is critical in abnormal DNA methylation patterns in cancer cells. Nearly 40 alternatively spliced variants of DNMT3B have been reported. DNMT3B4 and DNMT3B7 are two kinds of splice variants of DNMT3B lacking the conserved methyltransferase motif. In this study, the effect of inactivation of DNMT3B variants, DNMT3B4 and(More)
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