An active C-terminally truncated form of Ca (2+) /calmodulin-dependent protein kinase phosphatase-N (CaMKP-N/PPM1E).

Ca(2+)/calmodulin-dependent protein kinase phosphatase (CaMKP/PPM1F) and its nuclear homolog CaMKP-N (PPM1E) are Ser/Thr protein phosphatases that belong to the PPM family. CaMKP-N is expressed in the brain and undergoes proteolytic processing to yield a C-terminally truncated form. The physiological significance of this processing, however, is not fully understood.

No viral evolution in the lymph nodes of simian immunodeficiency virus-infected rhesus macaques during combined antiretroviral therapy.

To elucidate the mode of viral persistence in primate lentivirus-infected individuals during combination antiretroviral therapy (cART), four simian immunodeficiency virus 239-infected monkeys were treated with cART for 1 year. The viral env genes prepared from total RNA extracted from the mesenteric lymph nodes collected at the completion of therapy were assessed by single genome amplification. Analyses of nucleotide substitutions and phylogeny revealed no viral evolution during cART.