Heparan sulfate proteoglycans interact exclusively with conformationally intact HPV L1 assemblies: Basis for a virus‐like particle ELISA
- 12 November 2004
- journal article
- research article
- Published by Wiley in Journal of Medical Virology
- Vol. 75 (1) , 114-121
- https://doi.org/10.1002/jmv.20245
Abstract
In this article, we demonstrate that interaction of human papillomavirus‐like particles (HPV‐VLPs) with the putative glucosaminoglycan binding receptor is strictly dependent on conformational integrity. Such conformations are present on VLPs and capsomeres but not on monomers of the major capsid protein, L1, confirming reports that capsomeres can induce virus‐neutralizing antibodies. Furthermore, we show the suitability of this specific interaction for development of VLP‐based enzyme‐linked immunosorbent assays (ELISAs), using heparin for indirect coupling of VLPs to microtiter plates, which may add an intrinsic quality control. This avoids presentation of linear, often highly cross‐reactive epitopes of L1. In addition, heparin specifically interacts with a wide variety of HPV types, making it a prime candidate for a universal capture molecule. J. Med. Virol. 75:114–121, 2005.Keywords
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