{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T16:55:39Z","timestamp":1790787339556,"version":"4.1.0"},"reference-count":50,"publisher":"American Chemical Society (ACS)","issue":"19","license":[{"start":{"date-parts":[[2020,5,4]],"date-time":"2020-05-04T00:00:00Z","timestamp":1588550400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/pubs.acs.org\/page\/policy\/authorchoice_termsofuse.html"}],"funder":[{"DOI":"10.13039\/501100001407","name":"Department of Biotechnology , Ministry of Science and Technology","doi-asserted-by":"publisher","award":["BT\/11\/IYBA\/2018\/06"],"award-info":[{"award-number":["BT\/11\/IYBA\/2018\/06"]}],"id":[{"id":"10.13039\/501100001407","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001411","name":"Indian Council of Medical Research","doi-asserted-by":"publisher","award":["NA"],"award-info":[{"award-number":["NA"]}],"id":[{"id":"10.13039\/501100001411","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004541","name":"Ministry of Human Resource Development","doi-asserted-by":"publisher","award":["SPARC\/2018-2019\/P37\/SL"],"award-info":[{"award-number":["SPARC\/2018-2019\/P37\/SL"]}],"id":[{"id":"10.13039\/501100004541","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,5,19]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Since 2007, repeated outbreaks of Zika virus (ZIKV) have affected millions of people worldwide and created a global health concern with major complications like microcephaly and Guillain Barre\u2019s syndrome. To date, there is not a single Zika-specific licensed drug present in the market. However, in recent months, several antiviral molecules have been screened against ZIKV. Among those, (\u2212)-epigallocatechin-3-gallate (EGCG), a green tea polyphenol, has shown great virucidal potential against flaviviruses including ZIKV. The mechanistic understanding of EGCG-targeting viral proteins is not yet entirely deciphered except that little is known about its interaction with viral envelope protein and viral protease. We designed our current study to find inhibitory actions of EGCG against ZIKV NS3 helicase. NS3 helicase performs a significant role in viral replication by unwinding RNA after hydrolyzing NTP. We employed molecular docking and simulation approach and found significant interactions at the ATPase site and also at the RNA binding site. Further, the enzymatic assay has shown significant inhibition of NTPase activity with an IC50 value of 295.7 nM and Ki of 0.387 \u00b1 0.034 \u03bcM. Our study suggests the possibility that EGCG could be considered as a prime backbone molecule for further broad-spectrum inhibitor development against ZIKV and other flaviviruses.<\/jats:p>","DOI":"10.1021\/acsomega.0c01353","type":"journal-article","created":{"date-parts":[[2020,5,4]],"date-time":"2020-05-04T11:54:10Z","timestamp":1588593250000},"page":"11217-11226","source":"Crossref","is-referenced-by-count":38,"title":["Mechanistic Insights into Zika Virus NS3 Helicase\nInhibition by Epigallocatechin-3-Gallate"],"prefix":"10.1021","volume":"5","author":[{"given":"Deepak","family":"Kumar","sequence":"first","affiliation":[{"name":"Indian Institute of Technology Mandi , , VPO Kamand , , ,","place":["Mandi, Himachal Pradesh, India, 175005"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8176-7056","authenticated-orcid":true,"given":"Nitin","family":"Sharma","sequence":"additional","affiliation":[{"name":"Indian Institute of Technology Mandi , , VPO Kamand , , ,","place":["Mandi, Himachal Pradesh, India, 175005"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Murali","family":"Aarthy","sequence":"additional","affiliation":[{"name":"Alagappa University , , Science Block , , ,","place":["Karaikudi, Tamilnadu, India, 630003"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sanjeev Kumar","family":"Singh","sequence":"additional","affiliation":[{"name":"Alagappa University , , Science Block , , ,","place":["Karaikudi, Tamilnadu, India, 630003"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2046-836X","authenticated-orcid":true,"given":"Rajanish","family":"Giri","sequence":"additional","affiliation":[{"name":"Indian Institute of Technology Mandi , , VPO Kamand , , ,","place":["Mandi, Himachal Pradesh, India, 175005"]},{"name":"Indian Institute of Technology Mandi , , , ,","place":["Mandi, Himachal Pradesh, India, 175005"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2020,5,4]]},"reference":[{"key":"2026090210331113300_cit1","doi-asserted-by":"publisher","first-page":"3","DOI":"10.4103\/0974-777X.176140","article-title":"The Emergence\nof Zika Virus as a Global Health Security Threat: A Review and a Consensus\nStatement of the INDUSEM Joint Working Group (JWG)","volume":"8","author":"Stawicki","year":"2016","journal-title":"J. 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Infect."},{"key":"2026090210331113300_cit5","doi-asserted-by":"publisher","first-page":"359","DOI":"10.3201\/eid2102.141363","article-title":"Potential Sexual Transmission of\nZika Virus","volume":"21","author":"Musso","year":"2015","journal-title":"Emerging Infect. Dis."},{"key":"2026090210331113300_cit6","doi-asserted-by":"publisher","first-page":"e00411","DOI":"10.1128\/aac.00411-17ss","article-title":"The Race To Find Antivirals for Zika\nVirus","volume":"61","author":"Saiz","year":"2017","journal-title":"Antimicrob. Agents Chemother."},{"key":"2026090210331113300_cit7","doi-asserted-by":"publisher","first-page":"919","DOI":"10.1016\/j.molmed.2016.09.006","article-title":"Drug Repurposing:\nNew Treatments\nfor Zika Virus Infection?","volume":"22","author":"Cheng","year":"2016","journal-title":"Trends Mol. 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Biochem."}],"container-title":["ACS Omega"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pubs.acs.org\/doi\/pdf\/10.1021\/acsomega.0c01353","content-type":"application\/pdf","content-version":"vor","intended-application":"unspecified"},{"URL":"https:\/\/pubs.acs.org\/acsodf\/article-pdf\/5\/19\/11217\/67796381\/acsomega.0c01353.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/pubs.acs.org\/acsodf\/article-pdf\/5\/19\/11217\/67796381\/acsomega.0c01353.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T14:33:21Z","timestamp":1788359601000},"score":1,"resource":{"primary":{"URL":"https:\/\/pubs.acs.org\/acsodf\/article\/5\/19\/11217\/615960\/Mechanistic-Insights-into-Zika-Virus-NS3-Helicase"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,5,4]]},"references-count":50,"journal-issue":{"issue":"19","published-online":{"date-parts":[[2020,5,4]]},"published-print":{"date-parts":[[2020,5,19]]}},"URL":"https:\/\/doi.org\/10.1021\/acsomega.0c01353","relation":{"has-preprint":[{"id-type":"doi","id":"10.1101\/530600","asserted-by":"object"}]},"ISSN":["2470-1343"],"issn-type":[{"value":"2470-1343","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,5,4]]}}}