Author's Correction for Yang et al., J. Virol. 78 (8) 4029-4036.
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Journal of Virology, April 2006, p. 4206, Vol. 80, No. 8
0022-538X/06/$08.00+0     doi:10.1128/JVI.80.8.4206.2006

AUTHOR'S CORRECTION

Selective Modification of Variable Loops Alters Tropism and Enhances Immunogenicity of Human Immunodeficiency Virus Type 1 Envelope

Zhi-yong Yang, Bimal K. Chakrabarti, Ling Xu, Brent Welcher, Wing-pui Kong, Kwanyee Leung, Amos Panet, John R. Mascola, and Gary J. Nabel

Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892-3005

Volume 78, No. 8, p. 4029-4036, 2004. Page 4030: We have recently recognized an inadvertent error in the Materials and Methods section. The centrifuge rotors and g forces were described incorrectly and should read as follows.

Buoyant density gradient analysis of lentiviral vectors. The supernatants were harvested and filtered through a 0.45-µm syringe filter. The recombinant virus was first concentrated by layering a 10-ml sample in tissue culture media onto 2.5 ml of Optiprep (Iodixanol) (60%) solution (Invitrogen, Carlsbad, Calif.) and centrifuging it at 53,000 x g for 1 h in a Sorvall TH-641 rotor (Kendro, Newtown, Conn.). The top 7.5 ml of supernatant was removed, and the remaining solution was mixed uniformly to achieve a final concentration of 30% Optiprep in a 5-ml final volume. The gradient was formed by centrifugation at 363,000 x g for 3.5 h with a Beckman NVT-100 rotor.

This information does not alter the conclusions of the paper.

Journal of Virology, April 2006, p. 4206, Vol. 80, No. 8
0022-538X/06/$08.00+0     doi:10.1128/JVI.80.8.4206.2006





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