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Stories tagged 'simian immunodeficiency virus'

HIV’s unusual family tree

How the virus leapt from monkeys to chimps to humans, and why it doesn’t happen more often

Sept. 25, 2015 | By Dr. Rachel Tompa / Fred Hutch News Service

A new study on the evolutionary biology of HIV, simian immunodeficiency virus (SIV) and chimp genes by Fred Hutch virologist Dr. Michael Emerman sheds light on how a critical immune blockade may have been breached, just once, to allow the HIV precursor to leap from monkeys to chimps.

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Scientists track birth of evolutionary genetic arms race

Emerman, Malik study uncovers ability of some HIV-related viruses to defeat primate cellular-defense system SAMHD1 protein

Feb. 6, 2012

Using a combination of evolutionary biology and virology, Fred Hutchinson Cancer Research Center scientists have traced the birth of the ability of some HIV-related viruses to defeat a newly discovered cellular-defense system in primates.

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