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. Author manuscript; available in PMC: 2006 Feb 3.
Published in final edited form as: FEBS J. 2005 Oct;272(20):5265–5277. doi: 10.1111/j.1742-4658.2005.04923.x

Fig. 1.

Fig. 1

Electron density map of HIV-1 protease with the V82A mutation (PRV82A)–p2-NC crystal structure. The 2Fo–Fc map was contoured at a level of 2.2σ. Hydrogen bond interactions are shown with distances in Å. (A) Residues 78–82. (B) Asp30 interacting with P2′ Gln.