Article(id=1198628506662961193, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1198628499750744699, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2022-1102, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1665331200000, receivedDateStr=2022-10-10, revisedDate=1668009600000, revisedDateStr=2022-11-10, acceptedDate=null, acceptedDateStr=null, onlineDate=1763704905429, onlineDateStr=2025-11-21, pubDate=1683820800000, pubDateStr=2023-05-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763704905429, onlineIssueDateStr=2025-11-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763704905429, creator=13701087609, updateTime=1763704905429, updator=13701087609, issue=Issue{id=1198628499750744699, tenantId=1146029695717560320, journalId=1189982191388893191, year='2023', volume='58', issue='5', pageStart='0', pageEnd='1400', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1763704903781, creator=13701087609, updateTime=1766137655840, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1208832201509172104, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1198628499750744699, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1208832201509172105, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1198628499750744699, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1372, endPage=1382, ext={EN=ArticleExt(id=1198628507019477062, articleId=1198628506662961193, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=A novel
O-methyltransferase with substrate promiscuity from
Ardisia japonica, columnId=1190335348761793317, journalTitle=Acta Pharmaceutica Sinica, columnName=Original Articles, runingTitle=null, highlight=null, articleAbstract=
O-methyltransferases (OMTs) are one of the key tailoring enzymes in the biosynthesis of many natural products, O-methylation can not only reduce the reactivity of natural products, but also alter their solubility, stability and biological activities. Based on the transcriptome data of Ardisia japonica, a full-length cDNA sequence of candidate OMT (termed as AjOMT1) was cloned by reverse transcription-polymerase chain reaction (RT-PCR) and expressed in Escherichia coli (E. coli) for the first time. In vitro enzyme catalytic activity assay showed that the recombinant AjOMT1 could effectively catalyze quercetin to form O-methylated products. Most importantly, AjOMT1 showed unprecedented substrate promiscuity towards structurally various compounds including flavonoids, stilbenes, coumarins, alkaloids and phenylpropanoids, especially preferring to the compounds with adjacent phenolic hydroxyl groups, and showed regio-selectivity. These results suggested that AjOMT1 could be used as the tool enzyme to conduct O-methylation of different types of compounds to produce diverse active methylated products, and provide a new method for drug discovery, even universal part for synthetic biology of natural products.
, correspAuthors=Jun-gui DAI, Lin YANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2023 Acta Pharmaceutica Sinica. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Qi LIU, Rui-qi YAN, Bing-han XIE, Song-yang SUI, Ke-bo XIE, Jun-gui DAI, Lin YANG), CN=ArticleExt(id=1198628511612240162, articleId=1198628506662961193, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=紫金牛中一个新颖底物杂泛性
O-甲基转移酶, columnId=1190335348896011050, journalTitle=药学学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=
O-甲基转移酶(O-methyltransferases, OMTs) 是许多天然产物生物合成途径中的关键后修饰酶之一, O-甲基化不仅可降低化合物的化学反应活性, 而且能显著改善其溶解性、稳定性等理化性质和生物活性等。本研究根据紫金牛转录组测序结果, 首次从紫金牛中克隆获得1条OMT基因(命名为AjOMT1), 并成功进行了大肠杆菌异源表达, 体外酶催化活性结果表明重组AjOMT1能高效催化槲皮素发生O-甲基化反应。底物谱考察结果表明, AjOMT1能催化黄酮类、茋类、香豆素类、生物碱类、苯丙素类等不同结构类型的化合物进行甲基化反应, 具有非常宽泛的底物谱; AjOMT1偏好于具邻二酚羟基的化合物, 并表现出位置选择性。本研究结果表明, AjOMT1可用作O-甲基化工具酶实现不同类型化合物的O-甲基化、获取多样化的活性甲基化产物, 可为药物发现提供新方法, 并可为天然产物合成生物学研究提供普适性元件。
, correspAuthors=戴均贵, 杨林, authorNote=null, correspAuthorsNote=
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, authorsList=刘琦, 闫锐琪, 谢冰寒, 隋颂扬, 解可波, 戴均贵, 杨林)}, authors=[Author(id=1198960125831643257, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1198960125970055298, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, authorId=1198960125831643257, language=EN, stringName=Qi LIU, firstName=Qi, middleName=null, lastName=LIU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2, address=2. State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzymes and Natural Drug Biocatalysis, NHC Key Laboratory of Natural Drug Biosynthesis, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100050, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1198960127396118808, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, authorId=1198960127123489021, language=CN, stringName=隋颂扬, firstName=颂扬, middleName=null, lastName=隋, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=2.中国医学科学院、北京协和医学院药物研究所, 天然药物活性物质与功能国家重点实验室, 中国医学科学院酶与天然药物生物催化重点实验室, 国家卫生健康委员会天然药物生物合成重点实验室, 北京 100050, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1198960125672259683, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, xref=null, ext=[AuthorCompanyExt(id=1198960125680648292, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, companyId=1198960125672259683, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2. State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzymes and Natural Drug Biocatalysis, NHC Key Laboratory of Natural Drug Biosynthesis, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100050, China), AuthorCompanyExt(id=1198960125697425512, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, companyId=1198960125672259683, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2.中国医学科学院、北京协和医学院药物研究所, 天然药物活性物质与功能国家重点实验室, 中国医学科学院酶与天然药物生物催化重点实验室, 国家卫生健康委员会天然药物生物合成重点实验室, 北京 100050)])]), Author(id=1198960127505170733, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, orderNo=4, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1198960127710691649, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, authorId=1198960127505170733, language=EN, stringName=Ke-bo XIE, firstName=Ke-bo, middleName=null, lastName=XIE, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=2. State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzymes and Natural Drug Biocatalysis, NHC Key Laboratory of Natural Drug Biosynthesis, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100050, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1198960127924601171, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, authorId=1198960127505170733, language=CN, stringName=解可波, firstName=可波, middleName=null, lastName=解, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=2.中国医学科学院、北京协和医学院药物研究所, 天然药物活性物质与功能国家重点实验室, 中国医学科学院酶与天然药物生物催化重点实验室, 国家卫生健康委员会天然药物生物合成重点实验室, 北京 100050, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1198960125672259683, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, xref=null, ext=[AuthorCompanyExt(id=1198960125680648292, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, companyId=1198960125672259683, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2. State Key Laboratory of Bioactive Substance and Function of Natural Medicines, CAMS Key Laboratory of Enzymes and Natural Drug Biocatalysis, NHC Key Laboratory of Natural Drug Biosynthesis, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100050, China), AuthorCompanyExt(id=1198960125697425512, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, companyId=1198960125672259683, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2.中国医学科学院、北京协和医学院药物研究所, 天然药物活性物质与功能国家重点实验室, 中国医学科学院酶与天然药物生物催化重点实验室, 国家卫生健康委员会天然药物生物合成重点实验室, 北京 100050)])]), Author(id=1198960128037847387, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, orderNo=5, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=jgdai@imm.ac.cn, emailSecond=null, emailThird=null, correspondingAuthor=1, authorType=1, ext={EN=AuthorExt(id=1198960128159482216, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, authorId=1198960128037847387, language=EN, stringName=Jun-gui DAI, firstName=Jun-gui, middleName=null, lastName=DAI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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Phylogenetic analysis of AjOMT1 (in magenta) with the previously characterized O-methyltransferases (OMTs) at the protein level. The evolution history was inferred base on the neighbor-joining method using the software MEGA 7.0. The bootstrap values are 1 000 replicates, and the scale bar represents 0.2 amino acid substitutions per site. the GenBank accession numbers of OMTs used for analysis are as follows: VrROMT (JX673941, Vitis riparia); VvROMT (NM_001281115, V. vinifera); MpOMT2 (AY337459, Mentha × piperita); CrOMT2 (AY127568, Citrus reticulata); CrOMT6 (AY343490, C. reticulata); MtIOMT1 (AY942159, Medicago truncatula); GeHI4′OMT (AB091684, Glycyrrhiza echinata); SbOMT3 (JX673942, Sorghum bicolor); Cja6OMT (D29811, Coptis japonica); MpOMT4 (AY337461, M. × piperita); MpOMT1A (AY337457, M. × piperita); MpOMT1B (AY337458, M. × piperita); SbOMT1 (EF189707, S. bicolor); MpOMT3 (AY337460, M. × piperita); AtOMT1 (U70424, Arabidopsis thaliana); AtROMT (AY062837, A. thaliana); GsOMT1 (MT512039, Gloriosa superba); GsOMT2 (MT512043, G. superba); VpOMT5 (JF344741, Vanilla planifolia); AoOMT (XP_020252875, Asparagus officinalis); VpOMT4 (JF344740, V. planifolia); PtCCOMT (XP_002312473, Populus trichocarpa); PtCCOMT-2 (AFZ78549, P. tomentosa); AtCCOMT (NP_564916, A. thaliana); VvAOMT (FJ460168, V. vinifera); AtCCoAOMT7 (AEE85172, A. thaliana); CrOMT1 (KI536925, C. reticulata); McPFOMT (3C3Y_A, Mesembryanthemum crystallinum); ObPFOMT-1 (KC354401, Ocimum basilicum) , figureFileSmall=88YMtSKvEEcyRGhIkRWVOw==, figureFileBig=GdgXJoAKiWvgooxbYmySqQ==, tableContent=null), ArticleFig(id=1198960131292627654, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, language=EN, label=null, caption=null, figureFileSmall=Dg0JaKh7g6MDDkQ9Xt7+eg==, figureFileBig=+F9EDONXDk8n9CPr1KvFNw==, tableContent=null), ArticleFig(id=1198960131464594142, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, language=CN, label=Figure 2, caption=
Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) of purified recombinant AjOMT1 protein. Lane M: Protein Marker; Lane 1: His-tagged AjOMT1 (indicated with an arrow; predicted molecular weight, 27.6 kDa) , figureFileSmall=Dg0JaKh7g6MDDkQ9Xt7+eg==, figureFileBig=+F9EDONXDk8n9CPr1KvFNw==, tableContent=null), ArticleFig(id=1198960131594617585, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, language=EN, label=null, caption=null, figureFileSmall=c1Rh8OAxaM+0dEVvdQjnOQ==, figureFileBig=+tAMUKnhCjDZGPu06/DMzQ==, tableContent=null), ArticleFig(id=1198960131737223937, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, language=CN, label=Figure 3, caption=
O-methylation of quercetin (1) catalyzed by recombinant AjOMT1. A: AjOMT1 catalyzed the main O-methylated product of 1; B: High performance liquid chromatography (HPLC) analysis of 1 and the enzymatic products 1a, 1b; C: Ultraviolet (UV) and typical positive ion mass spectrometer (MS) spectra for 1a; D: UV and typical positive ion MS spectra for 1b. SAM: S-Adenosy-L-methionine , figureFileSmall=c1Rh8OAxaM+0dEVvdQjnOQ==, figureFileBig=+tAMUKnhCjDZGPu06/DMzQ==, tableContent=null), ArticleFig(id=1198960131892413203, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, language=EN, label=null, caption=null, figureFileSmall=pyv7npCgqftQYLgJunLWKg==, figureFileBig=Sy2US5GDrlmzETtrlosRaw==, tableContent=null), ArticleFig(id=1198960132022436640, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, language=CN, label=Figure 4, caption=
Effects of various pH (A), temperature (B) and divalent metal ions (C) on the activity of AjOMT1. Nonlinear regression (D) of the Michaelis-Menten equation for AjOMT1. Quercetin (1) was used as the methylation acceptor, SAM was used as the methylation donor , figureFileSmall=pyv7npCgqftQYLgJunLWKg==, figureFileBig=Sy2US5GDrlmzETtrlosRaw==, tableContent=null), ArticleFig(id=1198960132135682862, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, language=EN, label=null, caption=null, figureFileSmall=CDzC5s6REFS+vqFvryqV+g==, figureFileBig=rVv2VdNKbnFJmn8YfAcjmQ==, tableContent=null), ArticleFig(id=1198960132282483515, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, language=CN, label=Figure 5, caption=
Probing the substrate catalytic promiscuity of AjOMT1. A: Structures of the substrates and part of corresponding methylated products prepared from the scale-up enzymatic reactions identified by MS, NMR spectroscopic data analysis; B: Conversion rates of different substrates with AjOMT1. ND: Not detected , figureFileSmall=CDzC5s6REFS+vqFvryqV+g==, figureFileBig=rVv2VdNKbnFJmn8YfAcjmQ==, tableContent=null), ArticleFig(id=1198960132420895563, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, language=EN, label=null, caption=null, figureFileSmall=+HjiJzqyZzez/eS4IYhwAQ==, figureFileBig=Gj0KCJ47RuPq1zBZDhJNNQ==, tableContent=null), ArticleFig(id=1198960132513170264, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, language=CN, label=Figure 6, caption=
HPLC chromatograms of methylation of selected substrates by AjOMT1 in vitro , figureFileSmall=+HjiJzqyZzez/eS4IYhwAQ==, figureFileBig=Gj0KCJ47RuPq1zBZDhJNNQ==, tableContent=null), ArticleFig(id=1198960132647388006, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, language=EN, label=null, caption=null, figureFileSmall=k/8l68ELHiyy/Z1KhmCXBQ==, figureFileBig=d7QFt4pGQ5xB9JzfNnuEBA==, tableContent=null), ArticleFig(id=1198960132806771568, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1198628506662961193, language=CN, label=Figure 7, caption=
Typical positive ion MS spectra of methylated products catalyzed by AjOMT1 in vitro , figureFileSmall=k/8l68ELHiyy/Z1KhmCXBQ==, figureFileBig=d7QFt4pGQ5xB9JzfNnuEBA==, tableContent=null)], attaches=null, journal=Journal(id=1189982048455397383, delFlag=0, nameCn=药学学报, nameEn=Acta Pharmaceutica Sinica, nameHistory1=null, nameHistory2=null, issn=0513-4870, eissn=null, cn=11-2163/R, coden=null, periodic=0, language=CN, oaType=null, ccby=null, superviseOffice=null, ownerOffice=null, pubOffice=null, editorOffice=null, officeType=null, aims=null, clcCode=null, officeProv=null, officeCity=null, officeAddr=null, officeZip=null, officeEmail=null, officePhone=null, editDirector=null, officeDirector=null, officeDirectorPhone=null, officeStaffNum=null, officeEmpNum=null, coverPicUrl=BTxjudbJDVO4PqdBR6On6Q==, journalPrice=null, startedYear=null, abbrevIsoEn=null, journalRemark=null, publicationField=null, createdTime=1761643429151, updatedTime=1761735768113, createdBy=18614031015, 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