Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2015 Apr 10;10(4):e0122953. doi: 10.1371/journal.pone.0122953

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration, which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.

PMC Copyright notice

Fig 3 — (A) Introduction of single and double mutations into the 3′PPT or cPPT region in an NL4-3 backbone through yeast based/HIV-1 cloning technology [33]; (B) Replication of various PPT mutants, as well as Δnef mutant (with premature stop codon in nef but outside of PPT region) in U87.CD4.CXCR4 cells. The input viruses were normalized according to RT activity.