Article(id=1210518238786621868, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1210518228766421884, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2022-0631, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1653408000000, receivedDateStr=2022-05-25, revisedDate=1654531200000, revisedDateStr=2022-06-07, acceptedDate=null, acceptedDateStr=null, onlineDate=1766539638468, onlineDateStr=2025-12-24, pubDate=1670774400000, pubDateStr=2022-12-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1766539638468, onlineIssueDateStr=2025-12-24, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1766539638468, creator=13701087609, updateTime=1766539638468, updator=13701087609, issue=Issue{id=1210518228766421884, tenantId=1146029695717560320, journalId=1189982191388893191, year='2022', volume='57', issue='12', pageStart='0', pageEnd='3698', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1766539636078, creator=13701087609, updateTime=1766539730802, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1210518626109624560, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1210518228766421884, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1210518626109624561, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1210518228766421884, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=3669, endPage=3674, ext={EN=ArticleExt(id=1210518239285744089, articleId=1210518238786621868, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=Semi-rational design improves the catalytic activity of phenylalanine ammonia lyase from
Anabaena variabilis, columnId=1190335348761793317, journalTitle=Acta Pharmaceutica Sinica, columnName=Original Articles, runingTitle=null, highlight=null, articleAbstract=
Phenylalanine ammonia lyase (PAL) can catalyze L-phenylalanine to produce trans-cinnamic acid, which is widely used in the fields of pharmacy, food and agriculture. In particular, phenylalanine ammonia lyase from Anabaena variabilis (AvPAL) is the only protein drug for the treatment of phenylketonuria. However, the poor activity and low stability limit the application in industry of AvPAL. In this study, the key amino acids of substrate-binding cavity in AvPAL were identified by screening the single site saturation mutagenesis library. Subsequently, the impact of replacing M222 with the additional 19 amino acids on activity was also evaluated by site-directed mutagenesis. It was found that the kcat values of mutants M222L and M222V were 90% and 60% higher than that of AvPAL, and the kcat/Km was 1.4 and 1.5 times as that of AvPAL. Molecular docking results revealed that the higher activity of M222L and M222V may be due to the increase of hydrophobicity favorable for the substrate-binding cavity. This study is important for elucidating the structure-function relationship of AvPAL.
, correspAuthors=Zhao-yong YANG, Zhi-fei ZHANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2022 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=Xi-yu WEI, Cui-yue FENG, Rui-jie LV, Shuai FAN, Zhao-yong YANG, Zhi-fei ZHANG), CN=ArticleExt(id=1210518243949810283, articleId=1210518238786621868, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=半理性设计提高
Anabaena variabilis来源的苯丙氨酸解氨酶的催化活性, columnId=1190335348896011050, journalTitle=药学学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=
苯丙氨酸解氨酶(phenylalanine ammonia lyase, PAL) 可催化L-苯丙氨酸生成反式肉桂酸, 广泛应用在制药、食品和农业等领域中, 尤其来源于多变鱼腥藻(Anabaena variabilis) 的PAL (AvPAL) 是现有唯一治疗苯丙酮尿症的蛋白类药物。但较低的活性和较差的稳定性限制了PAL在工业中广泛的应用。本研究针对组成AvPAL底物结合腔的氨基酸, 通过点饱和突变文库筛选获得了活性提高的突变体, 并通过定点突变探讨了M222位点对活性的影响。研究发现突变体M222L和M222V的kcat值相比于AvPAL提高90%和60%, 同时kcat/Km较AvPAL提高至1.4和1.5倍。结合分子对接结果显示, 突变体M222L和M222V通过增加底物结合腔的疏水性提高AvPAL的催化活性。本研究对于阐明AvPAL关键底物结合位点结构与活性的关系具有重要的意义。
, correspAuthors=杨兆勇, 张志斐, authorNote=null, correspAuthorsNote=
, copyrightStatement=版权所有©《药学学报》编辑部2022, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=3iw1SfmUugDUna1C0kJ2vw==, magXml=h+Xlj8trchqBK54Sp0YigA==, pdfUrl=null, pdf=B8oSN0v4+EzPW1yPXL6PeQ==, pdfFileSize=2520395, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=hkB5Qtyb71Mmdm4+cZm94Q==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=LPWOFgP/ArLxZiz68Mjuww==, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=魏西羽, 冯翠月, 吕瑞杰, 樊帅, 杨兆勇, 张志斐)}, authors=[Author(id=1210518245593977503, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, 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=1210518245774332589, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, authorId=1210518245593977503, language=EN, stringName=Xi-yu WEI, firstName=Xi-yu, middleName=null, lastName=WEI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2006,
273: 1004-1019., articleTitle=The essential tyrosine-containing loop conformation and the role of the C-terminal multi-helix region in eukaryotic phenylalanine ammonia-lyases, refAbstract=null)], funds=[Fund(id=1210518253416353797, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, awardId=81872782, language=CN, fundingSource=国家自然科学基金面上项目(81872782), fundOrder=null, country=null), Fund(id=1210518254615924745, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, awardId=2021-I2M-1-055, language=CN, fundingSource=中国医学科学院医学与健康科技创新工程(2021-I2M-1-055), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1210518244197274241, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, xref=null, ext=[AuthorCompanyExt(id=1210518244201468546, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, companyId=1210518244197274241, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1. School of Pharmacy, North China University of Science and Technology, Tangshan 063200, China), AuthorCompanyExt(id=1210518244209857155, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, companyId=1210518244197274241, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.华北理工大学药学院, 河北 唐山 063200)]), AuthorCompany(id=1210518244331491983, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, xref=null, ext=[AuthorCompanyExt(id=1210518244335686288, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, companyId=1210518244331491983, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2. Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China), AuthorCompanyExt(id=1210518244339880593, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, companyId=1210518244331491983, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2.中国医学科学院、北京协和医学院医药生物技术研究所, 北京 100050)])], figs=[ArticleFig(id=1210518251629581207, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, language=EN, label=null, caption=null, figureFileSmall=jxkhERjPZkld/eQ+RXQTFw==, figureFileBig=hkB5Qtyb71Mmdm4+cZm94Q==, tableContent=null), ArticleFig(id=1210518251721855903, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, language=CN, label=Figure 1, caption=
The crystal structures (A) and substrate binding cavity (B) of phenylalanine ammonia lyase from Anabaena variabilis (AvPAL). A: AvPAL contains four chains in crystal asymmetric unit, and are colored in green, red, blue, and yellow for the subunits, respectively; B: Residues in substrate and its binding cavity of AvPAL are shown in sticks , figureFileSmall=jxkhERjPZkld/eQ+RXQTFw==, figureFileBig=hkB5Qtyb71Mmdm4+cZm94Q==, tableContent=null), ArticleFig(id=1210518251910599596, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, language=EN, label=null, caption=null, figureFileSmall=QtiXbjEyC8TH5TosJGCkDw==, figureFileBig=AdHh7aB4woQln7rprHcyRQ==, tableContent=null), ArticleFig(id=1210518251998679984, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, language=CN, label=Figure 2, caption=
The recombinant AvPAL expressed in different strains of E. coli. Data are shown as the mean ± SD (n = 3). M: Marker; 1: Rosetta-gami2 (DE3); 2: ArcticExpress (DE3) pRARE2; 3: Origami2 (DE3); 4: BL21-CodonPlus (DE3)-RIPL; 5: Rosetta (DE3); 6: OverExpress C43 (DE3); 7: E. coli BL21 (DE3) , figureFileSmall=QtiXbjEyC8TH5TosJGCkDw==, figureFileBig=AdHh7aB4woQln7rprHcyRQ==, tableContent=null), ArticleFig(id=1210518252069983162, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, language=EN, label=null, caption=null, figureFileSmall=GP68g1G7rFOvngxj8GjKVQ==, figureFileBig=x31DZYll9TZsLYbyRyT2NQ==, tableContent=null), ArticleFig(id=1210518252145480640, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, language=CN, label=Figure 3, caption=
The activity of mutants of M222. Data are shown as the mean ± SD (n = 3) , figureFileSmall=GP68g1G7rFOvngxj8GjKVQ==, figureFileBig=x31DZYll9TZsLYbyRyT2NQ==, tableContent=null), ArticleFig(id=1210518252262921160, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, language=EN, label=null, caption=null, figureFileSmall=WDFjjUeAeSisUFR7+QgHgQ==, figureFileBig=7MRUTDI+lrVATYmmwFIiSg==, tableContent=null), ArticleFig(id=1210518252367778769, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, language=CN, label=Figure 4, caption=
Effects of pH (A) and temperature (B) on AvPAL and its mutants. Data are shown as the mean ± SD (n = 3) , figureFileSmall=WDFjjUeAeSisUFR7+QgHgQ==, figureFileBig=7MRUTDI+lrVATYmmwFIiSg==, tableContent=null), ArticleFig(id=1210518252489413591, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, language=EN, label=null, caption=null, figureFileSmall=THnzP6mF2D/f0lhZ6az/6g==, figureFileBig=kVr5hwAIgXdwFevGCh2gFQ==, tableContent=null), ArticleFig(id=1210518252602659806, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, language=CN, label=Figure 5, caption=
Molecular docking analysis of interactions between AvPAL, variant M222V and substrate L-Phe , figureFileSmall=THnzP6mF2D/f0lhZ6az/6g==, figureFileBig=kVr5hwAIgXdwFevGCh2gFQ==, tableContent=null), ArticleFig(id=1210518252699128804, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| Primer name | Primer sequence (5'-3') |
| AvPAL-F | GAAGGAGATATACATATGAAAACCCT GAGCCAGGCGC |
| AvPAL-R | GTGGTGGTGGTGCTCGAGATGCAGG CACGGCAGAATA |
| L104-F | TGCAGACCAATNNKGTGTGGTTTCT |
| L104-R | AGAAACCACACMNNATTGGTCTGCA |
| L108-F | TGGTGTGGTTTNNKAAAACCGGCGC |
| L108-R | GCGCCGGTTTTMNNAAACCACACCA |
| L219-F | CGAAAGAAGGCNNKGCGATGATGAA |
| L219-R | TTCATCATCGCMNNGCCTTCTTTCG |
| M222-F | GCCTGGCGATGNNKAACGGCACCAG |
| M222-R | CTGGTGCCGTTMNNCATCGCCAGGC |
| N223-F | TGGCGATGATGNNKGGCACCAGCGT |
| N223-R | ACGCTGGTGCCMNNCATCATCGCCA |
| N451-F | CGGAACAGTTTNNKCAGAACATTAA |
| N451-R | TTAATGTTCTGMNNAAACTGTTCCG |
| F363-F | ATGGCGGCAACNNKCTGGGCCAGTA |
| F363-R | TACTGGCCCAGMNNGTTGCCGCCAT |
), ArticleFig(id=1210518252866900976, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, language=CN, label=Table 1, caption=
Primers used in this study. M = A or C; N = A, C, G, or T; K = G or T
, figureFileSmall=null, figureFileBig=null, tableContent=
| Primer name | Primer sequence (5'-3') |
| AvPAL-F | GAAGGAGATATACATATGAAAACCCT GAGCCAGGCGC |
| AvPAL-R | GTGGTGGTGGTGCTCGAGATGCAGG CACGGCAGAATA |
| L104-F | TGCAGACCAATNNKGTGTGGTTTCT |
| L104-R | AGAAACCACACMNNATTGGTCTGCA |
| L108-F | TGGTGTGGTTTNNKAAAACCGGCGC |
| L108-R | GCGCCGGTTTTMNNAAACCACACCA |
| L219-F | CGAAAGAAGGCNNKGCGATGATGAA |
| L219-R | TTCATCATCGCMNNGCCTTCTTTCG |
| M222-F | GCCTGGCGATGNNKAACGGCACCAG |
| M222-R | CTGGTGCCGTTMNNCATCGCCAGGC |
| N223-F | TGGCGATGATGNNKGGCACCAGCGT |
| N223-R | ACGCTGGTGCCMNNCATCATCGCCA |
| N451-F | CGGAACAGTTTNNKCAGAACATTAA |
| N451-R | TTAATGTTCTGMNNAAACTGTTCCG |
| F363-F | ATGGCGGCAACNNKCTGGGCCAGTA |
| F363-R | TACTGGCCCAGMNNGTTGCCGCCAT |
), ArticleFig(id=1210518252988535797, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| Enzyme | kcat/s-1 | Km/mmol·L-1 | kcat/Km/s-1·(mmol·L-1)-1 |
| AvPAL | 1.39 | 0.66 | 2.1 |
| M222L | 2.59 | 0.89 | 2.9 |
| M222V | 2.21 | 0.68 | 3.2 |
| M222I | 1.99 | 1.42 | 1.4 |
| M222N | 2.69 | 1.63 | 1.7 |
), ArticleFig(id=1210518253265359869, tenantId=1146029695717560320, journalId=1189982191388893191, articleId=1210518238786621868, language=CN, label=Table 2, caption=
Kinetic parameters of AvPAL and its mutants
, figureFileSmall=null, figureFileBig=null, tableContent=
| Enzyme | kcat/s-1 | Km/mmol·L-1 | kcat/Km/s-1·(mmol·L-1)-1 |
| AvPAL | 1.39 | 0.66 | 2.1 |
| M222L | 2.59 | 0.89 | 2.9 |
| M222V | 2.21 | 0.68 | 3.2 |
| M222I | 1.99 | 1.42 | 1.4 |
| M222N | 2.69 | 1.63 | 1.7 |
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