first identified by Jarmuz et al. as a member of family of proteins APOBEC3A to 3G on chromosome 22 in 2002 and later also as a cellular factor able to restrict replication of HIV-1 lacking the viral accessory protein Vif. Soon after, it was shown that APOBEC3G belonged to a family of proteins grouped together due to their homology with the cytidine deaminase APOBEC1.

Structure

APOBEC3G has a symmetric

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