{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,16]],"date-time":"2025-10-16T06:31:43Z","timestamp":1760596303605,"version":"3.41.2"},"reference-count":40,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2020,3,27]],"date-time":"2020-03-27T00:00:00Z","timestamp":1585267200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Molecular Recognition"],"published-print":{"date-parts":[[2020,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Monoclonal antibodies (mAbs) against morphine are important in the development of immunotherapeutic and diagnostic methods for the treatment and prevention of drug addiction. By the surface plasmon resonance (SPR) and enzyme immunoassay techniques, we characterized two previously obtained mAbs 3K11 and 6G1 and showed their ability to recognize free morphine and morphine\u2010containing antigens in different ways because of the epitope specificity thereof. Using the defined amino acid sequences, we obtained three\u2010dimensional models of the variable regions of Fab fragments of these antibodies and compared them with the known sequence and spatial structure of the anti\u2010morphine antibody 9B1. Docking simulations are performed to obtain models of the antibodies complexes with morphine. Differences in the models of 3K11 and 6G1 complexes with morphine correlate with their experimentally detected epitope specificity. The results, in particular, can be used for the structure\u2010based design of the corresponding humanized antibodies. According to our modeling and docking results, the very different modes of morphine binding to mAbs 3K11 and 6G1 are qualitatively similar to those previously reported for cocaine and two anti\u2010cocaine antibodies. Thus, the obtained structural information brings more insight into the hapten recognition diversity.<\/jats:p>","DOI":"10.1002\/jmr.2845","type":"journal-article","created":{"date-parts":[[2020,3,27]],"date-time":"2020-03-27T07:19:57Z","timestamp":1585293597000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Epitope specificity of two anti\u2010morphine monoclonal antibodies: In vitro and in silico studies"],"prefix":"10.1002","volume":"33","author":[{"given":"Alexander V.","family":"Trofimov","sequence":"first","affiliation":[{"name":"Laboratory of Protein Biochemistry, Institute for Highly Pure Biopreparations  St. Petersburg Russian Federation"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexey V.","family":"Sokolov","sequence":"additional","affiliation":[{"name":"Department of Molecular Genetics, Institute of Experimental Medicine  St. Petersburg Russian Federation"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexandra Y.","family":"Rak","sequence":"additional","affiliation":[{"name":"Laboratory of Protein Biochemistry, Institute for Highly Pure Biopreparations  St. Petersburg Russian Federation"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexander M.","family":"Ischenko","sequence":"additional","affiliation":[{"name":"Laboratory of Protein Biochemistry, Institute for Highly Pure Biopreparations  St. Petersburg Russian Federation"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4481-1617","authenticated-orcid":false,"given":"Tatiana V.","family":"Kudling","sequence":"additional","affiliation":[{"name":"Laboratory of Protein Biochemistry, Institute for Highly Pure Biopreparations  St. Petersburg Russian Federation"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andrey 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