{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T01:49:16Z","timestamp":1777600156948,"version":"3.51.4"},"reference-count":35,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2022,2,24]],"date-time":"2022-02-24T00:00:00Z","timestamp":1645660800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Natural Fund project of Shanghai Science and Technology Commission of China","award":["Project no. 20S11905000"],"award-info":[{"award-number":["Project no. 20S11905000"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>Sulfonamides are widely used antibiotics in agricultural production. However, the potential threat of these drugs to human health has increased global concern. Human serum albumin (HSA) is the main reservoir and transporter of exogenous small molecules in humans. In this study, the interaction between sulfadimethoxine (SMT) and human serum albumin (HSA) was studied using spectroscopy and computer simulation. Our results showed that the hydrogen bonding and van der Waals forces drove SMT to enter the binding site I of HSA spontaneously and resulted in the fluorescence quenching of HSA. The stability of the HSA\u2013SMT complex decreased with an increase in temperature. The binding of SMT to HSA induced alterations in the secondary structure of HSA, where the content of \u03b1-helix decreased from 61.0% of the free state to 59.0% of the compound state. The \u03c0\u2013\u03c0, \u03c0\u2013\u03c3, and \u03c0\u2013alkyl interactions between HSA and SMT were found to play important roles in maintaining the stability of the complex.<\/jats:p>","DOI":"10.3390\/molecules27051526","type":"journal-article","created":{"date-parts":[[2022,2,24]],"date-time":"2022-02-24T21:11:07Z","timestamp":1645737067000},"page":"1526","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["Interactions between Human Serum Albumin and Sulfadimethoxine Determined Using Spectroscopy and Molecular Docking"],"prefix":"10.3390","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3974-8238","authenticated-orcid":false,"given":"Yuai","family":"Zhang","sequence":"first","affiliation":[{"name":"Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China"},{"name":"NanChang Bozekang Pharmaceutical Technology Co., Ltd., Nanchang 330000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yiqing","family":"Cao","sequence":"additional","affiliation":[{"name":"Department of Pharmaceutical Analysis, School of Pharmacy, Fudan University, Shanghai 201203, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yan","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Pharmaceutical Analysis, School of Pharmacy, Fudan University, Shanghai 201203, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xuemei","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,2,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1634","DOI":"10.1002\/jssc.201901341","article-title":"Trends in sensitive detection and rapid removal of sulfonamides: A review","volume":"43","author":"Xie","year":"2020","journal-title":"J. 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