2026-06-27T15:27:25Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/447692024-09-03T14:32:17Zcom_20.500.14352_14col_20.500.14352_15

Tello, Daniel Rodríguez Rodríguez, Mar Yélamos, Belén Gómez Gutiérrez, Julián Ortega, Sara Pacheco González, Beatriz Peterson, Darrell L. Gavilanes, Francisco 2023-06-20T03:59:15Z 2023-06-20T03:59:15Z 2010-06 Tello, D., Rodríguez Rodríguez, M., Yélamos, B. et al. «Expression and Structural Properties of a Chimeric Protein Based on the Ectodomains of E1 and E2 Hepatitis C Virus Envelope Glycoproteins». Protein Expression and Purification, vol. 71, n.o 2, junio de 2010, pp. 123-31. DOI.org (Crossref), https://doi.org/10.1016/j.pep.2010.02.012. 1046-5928; 1096-0279 10.1016/j.pep.2010.02.012 https://hdl.handle.net/20.500.14352/44769 https//doi.org/10.1016/j.pep.2010.02.012 http://www.sciencedirect.com/science/article/pii/S1046592810000513 Hepatitis C virus encodes two enveloped glycoproteins, E1 and E2, which are involved in viral attachment and entry into target cells. We have obtained in insect cells infected by recombinant baculovirus a chimeric secreted recombinant protein, E1341E2661, containing the ectodomains of E1 and E2. The described procedure allows the purification of approximately 2 mg of protein from 1 L of culture media. Sedimentation velocity experiments and SDS-PAGE in the absence of reducing agents indicate that the protein has a high tendency to self-associate, the dimer being the main species observed. All the oligomeric forms observed maintain a conformation which is recognized by the conformation-dependent monoclonal antibody H53 directed against the E2 ectodomain. The spectroscopic properties of E1341E2661 are those of a three-dimensionally structured protein. Moreover, the chimeric protein is able to bind to human antibodies present in HCV-positive human sera. Accordingly, this chimeric soluble polypeptide chain may be a valuable tool to study the structure-function relationship of HCV envelope proteins. eng open access Expression and structural properties of a chimeric protein based on the ectodomains of E1 and E2 hepatitis C virus envelope glycoproteins journal article