In vivo attenuation of simian immunodeficiency virus by disruption of a tyrosine-dependent sorting signal in the envelope glycoprotein cytoplasmic tail.

Abstract excerpt

Attenuated simian immunodeficiency viruses (SIVs) have been described that produce low levels of plasma virion RNA and exhibit a reduced capacity to cause disease. These viruses are particularly useful in identifying viral determinants of pathogenesis. In the present study, we show that mutation of a highly conserved tyrosine (Tyr)-containing motif (Yxxphi) in the envelope glycoprotein (Env) cytoplasmic tail...

Topics

• Amino Acid Motifs
• Amino Acid Sequence
• Animals
• Codon
• Cytoplasm
• Gene Products, env
• Gene Products, nef
• Macaca mulatta
• Molecular Sequence Data
• Mutation