{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,15]],"date-time":"2026-06-15T16:07:14Z","timestamp":1781539634068,"version":"3.54.5"},"reference-count":85,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2023,9,3]],"date-time":"2023-09-03T00:00:00Z","timestamp":1693699200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"American Association of Colleges of Pharmacy","award":["P20GM130460"],"award-info":[{"award-number":["P20GM130460"]}]},{"name":"American Association of Colleges of Pharmacy","award":["R03NS110996"],"award-info":[{"award-number":["R03NS110996"]}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["P20GM130460"],"award-info":[{"award-number":["P20GM130460"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["R03NS110996"],"award-info":[{"award-number":["R03NS110996"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"name":"University of Mississippi","award":["P20GM130460"],"award-info":[{"award-number":["P20GM130460"]}]},{"name":"University of Mississippi","award":["R03NS110996"],"award-info":[{"award-number":["R03NS110996"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>The entry of SARS-CoV-2 into the host cell is mediated by its S-glycoprotein (SGP). Sulfated glycans bind to the SGP receptor-binding domain (RBD), which forms a ternary complex with its receptor angiotensin converting enzyme 2. Here, we have conducted a thorough and systematic computational study of the binding of four oligosaccharide building blocks from novel marine sulfated glycans (isolated from Pentacta pygmaea and Isostichopus badionotus) to the non-glycosylated and glycosylated RBD. Blind docking studies using three docking programs identified five potential cryptic binding sites. Extensive site-targeted docking and molecular dynamics simulations using two force fields confirmed only two binding sites (Sites 1 and 5) for these novel, highly charged sulfated glycans, which were also confirmed by previously published reports. This work showed the structural features and key interactions driving ligand binding. A previous study predicted Site 2 to be a potential binding site, which was not observed here. The use of several molecular modeling approaches gave a comprehensive assessment. The detailed comparative study utilizing multiple modeling approaches is the first of its kind for novel glycan\u2013SGP interaction characterization. This study provided insights into the key structural features of these novel glycans as they are considered for development as potential therapeutics.<\/jats:p>","DOI":"10.3390\/molecules28176413","type":"journal-article","created":{"date-parts":[[2023,9,4]],"date-time":"2023-09-04T02:43:20Z","timestamp":1693795400000},"page":"6413","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Docking and Molecular Dynamics Simulations Clarify Binding Sites for Interactions of Novel Marine Sulfated Glycans with SARS-CoV-2 Spike Glycoprotein"],"prefix":"10.3390","volume":"28","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9127-5816","authenticated-orcid":false,"given":"Priyanka","family":"Samanta","sequence":"first","affiliation":[{"name":"Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677-1848, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3080-9754","authenticated-orcid":false,"given":"Sushil","family":"Mishra","sequence":"additional","affiliation":[{"name":"Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677-1848, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5015-8880","authenticated-orcid":false,"given":"Vitor","family":"Pomin","sequence":"additional","affiliation":[{"name":"Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677-1848, USA"},{"name":"Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, MS 38677-1848, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3789-1842","authenticated-orcid":false,"given":"Robert","family":"Doerksen","sequence":"additional","affiliation":[{"name":"Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677-1848, USA"},{"name":"Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, MS 38677-1848, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,9,3]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"11727","DOI":"10.1073\/pnas.2003138117","article-title":"Cell entry mechanisms of SARS-CoV-2","volume":"117","author":"Shang","year":"2020","journal-title":"Proc. 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