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. 2010 Jan 14;2(1):147–165. doi: 10.3390/v2010147

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© 2010 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Figure 2. — Naturally occurring cleavage sites in retroviral Gag and Gag-Pro-Pol polyproteins. The site cleaved by the cognate retroviral protease is indicated by an arrow. Type 1 cleavage sites are in red. Abbreviations used: CA, capsid; NC, nucleocapsid; TF, transframe protein; PR, protease; RH, RNaseH; IN, integrase; DU, dUTPase. Proteins and peptides with unidentified functions are abbreviated with the size of the protein in kDa (e.g., p12 is a protein having 12 kDa, while pp refers to phosphoprotein), as pX, or by the letter n.