Article(id=1242119550204973494, tenantId=1146029695717560320, journalId=1192105938417971205, issueId=1242119544966283483, articleNumber=null, orderNo=null, doi=10.13343/j.cnki.wsxb.20240383, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1719158400000, receivedDateStr=2024-06-24, revisedDate=null, revisedDateStr=null, acceptedDate=1724688000000, acceptedDateStr=2024-08-27, onlineDate=1774073978234, onlineDateStr=2026-03-21, pubDate=1724947200000, pubDateStr=2024-08-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1774073978234, onlineIssueDateStr=2026-03-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774073978234, creator=13701087609, updateTime=1774073978234, updator=13701087609, issue=Issue{id=1242119544966283483, tenantId=1146029695717560320, journalId=1192105938417971205, year='2024', volume='64', issue='11', pageStart='4011', pageEnd='4465', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1774073976985, creator=13701087609, updateTime=1774074072279, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1242119944725397854, tenantId=1146029695717560320, journalId=1192105938417971205, issueId=1242119544966283483, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1242119944725397855, tenantId=1146029695717560320, journalId=1192105938417971205, issueId=1242119544966283483, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=4403, endPage=4424, ext={EN=ArticleExt(id=1242119550578266559, articleId=1242119550204973494, tenantId=1146029695717560320, journalId=1192105938417971205, language=EN, title=Biological effects of
antABC operon on
Pseudomonas aeruginosa, columnId=1241045257748533520, journalTitle=Acta Microbiologica Sinica, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=
In Pseudomonas aeruginosa, tryptophan can be converted into anthranilate via the KynABU pathway, and anthranilate as a substrate is further converted into alkyl quinolones (AQs), including 2-heptyl-3-hydroxy-4-quinolone (PQS) and 2-heptyl-4-quinolone (HHQ), under the action of pqsABCDE, a synthetic gene cluster of AQs. At the same time, anthranilate can be degraded into the tricarboxylic acid cycle under the catalysis of the anthranilate dioxygenase complex AntABC, while the biological effect of AntABC on P. aeruginosa remains unclear. [Objective] To construct and characterize the phenotype of the antABC-deleted mutant of P. aeruginosa. [Methods] With P. aeruginosa PAO1 as the starting strain, we constructed the antABC-deleted mutant by homologous recombination to study the effects of the operon on tryptophan degradation, biofilm formation, pyocyanin synthesis, motility, and virulence of P. aeruginosa. [Results] The deletion of antABC or kynU completely inhibited the growth of P. aeruginosa with tryptophan as the sole carbon source, while ΔpqsA did not present this phenotype, indicating that antABC was essential for the degradation of tryptophan by P. aeruginosa, and KynABU-AntABC pathway was the only way for the degradation of tryptophan by the bacterium under the culture conditions in this study. In addition to affecting tryptophan degradation in P. aeruginosa, the deletion of antABC promoted the biofilm formation of P. aeruginosa by inducing the expression of the extracellular polysaccharide synthesis operon pel, and it promoted the synthesis of pyocyanin by inducing the expression of the pyocyanin synthesis operons phz1 and phz2. In addition, the deletion of antABC enhanced the swarming motility and twitching motility of P. aeruginosa. Interestingly, further deletion of pqsA completely reversed the physiological phenotypes of ΔantABC. Therefore, the regulation of antABC on these physiological phenotypes depended on AQs. The deletion of antABC increased the HHQ accumulation while inhibiting the synthesis of PQS in P. aeruginosa. These results indicated that the regulation of these physiological phenotypes by antABC mainly depended on HHQ. In addition, the deletion of antABC enhanced the virulence of P. aeruginosa to Chinese cabbage and Galleria mellonella larvae, while further deletion of pqsA only partially reversed this virulence phenotype. Moreover, the deletion of antABC caused increased accumulation of anthranilate in P. aeruginosa. Therefore, the enhancement of antABC deletion on the virulence of P. aeruginosa was mediated by HHQ and anthranilate together. Finally, bioinformatics analysis revealed that the missense mutations of antABC operon occurred in more than 90% of clinical isolates of P. aeruginosa. Therefore, antABC was expected to be used as a biomarker to determine whether clinical isolates of P. aeruginosa were highly virulent. [Conclusion] AntABC plays an important role in the tryptophan degradation, biofilm formation, pyocyanin synthesis, motility, and virulence of P. aeruginosa. This finding lays a foundation for the clinical diagnosis and antimicrobial development of P. aeruginosa infection.
, correspAuthors=Juanli CHENG, Jinshui LIN, authorNote=null, correspAuthorsNote=
, copyrightStatement=Copyright ©2024 Acta Microbiologica 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=Zhiying LI, Panxin LI, Wanqing NING, Lan LI, Jiayi HAN, Juanli CHENG, Jinshui LIN), CN=ArticleExt(id=1242119555120697962, articleId=1242119550204973494, tenantId=1146029695717560320, journalId=1192105938417971205, language=CN, title=铜绿假单胞菌
antABC操纵子的生物学效应分析, columnId=1192149544164012138, journalTitle=微生物学报, columnName=研究报告, runingTitle=null, highlight=null, articleAbstract=
在铜绿假单胞菌中,色氨酸可通过KynABU犬尿氨酸途径被转化邻氨基苯甲酸,邻氨基苯甲酸进一步作为底物在烷基喹诺酮类化合物(alkyl quinolones, AQs)合成基因簇pqsABCDE的作用下被转化为AQs信号分子,包括2-庚基-3-羟基-4-喹诺酮(Pseudomonas quinolone signal, PQS)和2-庚基-4-喹诺酮(2-heptyl-4-hydroxyquinoline, HHQ)。同时,邻氨基苯甲酸还能在邻氨基苯甲酸双加氧酶复合物AntABC的催化下被降解进入三羧酸循环,但AntABC在铜绿假单胞菌中所介导的生物学效应依然不清楚。【目的】构建铜绿假单胞菌antABC的缺失突变株,并对该突变株的表型进行分析。【方法】以铜绿假单胞菌PAO1为亲本菌株,通过同源重组的方法构建antABC缺失突变株,研究该操纵子对铜绿假单胞菌色氨酸降解、生物被膜形成、绿脓菌素合成、运动性和毒力等的影响。【结果】缺失突变antABC或kynU均完全抑制了铜绿假单胞菌以色氨酸为唯一碳源的生长,而ΔpqsA则无该表型,说明antABC是铜绿假单胞菌降解色氨酸所必需的,并且在本研究指定的培养条件下KynABU-AntABC途径是该菌降解色氨酸的唯一途径。除了影响铜绿假单胞菌的色氨酸降解,缺失突变antABC通过诱导胞外多糖合成操纵子pel的表达进而促进铜绿假单胞菌生物被膜的形成,还通过诱导绿脓菌素合成操纵子phz1和phz2的表达进而促进铜绿假单胞菌绿脓菌素的合成。缺失突变antABC还促进了铜绿假单胞菌的集群运动和蹭行运动。另外,进一步缺失突变pqsA则完全逆转ΔantABC的这些生理表型。因此,antABC对这些生理表型的调控依赖于AQs。然而缺失突变antABC确实使铜绿假单胞菌积累了更多的HHQ,但却抑制了PQS的合成。说明antABC对这些生理表型的调控主要依赖于HHQ。此外,缺失突变antABC还增强了铜绿假单胞菌对白菜和大蜡螟幼虫的毒力,但是进一步缺失突变pqsA只能部分逆转ΔantABC的这一毒力表型,同时缺失突变antABC也使铜绿假单胞菌积累了更多的邻氨基苯甲酸,因此缺失突变antABC对铜绿假单胞菌毒力的增强作用应该由HHQ和邻氨基苯甲酸共同介导。最后,生物信息学分析发现超过90%的铜绿假单胞菌临床分离株中antABC操纵子发生了错义突变,因此antABC有望作为判断铜绿假单胞菌临床分离株是否具有高毒力的生物标志物。【结论】AntABC在铜绿假单胞菌的色氨酸降解、生物被膜形成、绿脓菌素合成、运动性和毒力等方面都发挥着重要的作用,这为针对铜绿假单胞菌的临床诊断和抗菌药物开发奠定了基础。
, correspAuthors=成娟丽, 林金水, authorNote=null, correspAuthorsNote=null, copyrightStatement=版权所有©《微生物学报》编辑部2024, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=ZyENbvoWjOykWJ2Xl2eMoQ==, magXml=ihMd4/VHWNzfQE4h+5btmQ==, pdfUrl=null, pdf=pOEL3g+3O4I0aWPrCvMiTg==, pdfFileSize=1367717, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=Cs6Aj/RasyCdRBlAYnUJ4w==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=EIlRxkq9V/7BRCTxnhCZGg==, mapNumber=null, authorCompany=null, fund=null, authors=
#Those authors contributed equally to this work.
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Pseudomonas aeruginosa PqsE enzyme reveal a protein-protein interaction with the quorum-sensing receptor RhlR that is vital for virulence factor production, refAbstract=null)], funds=[Fund(id=1243291010344796380, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, awardId=32070103, language=EN, fundingSource=National Natural Science Foundation of China(32070103), fundOrder=null, country=null), Fund(id=1243291010445459681, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, awardId=32070103, language=CN, fundingSource=国家自然科学基金(32070103), fundOrder=null, country=null), Fund(id=1243291010541928679, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, awardId=31860012, language=EN, fundingSource=National Natural Science Foundation of China(31860012), fundOrder=null, country=null), Fund(id=1243291010621620458, tenantId=1146029695717560320, journalId=1192105938417971205, 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articleId=1242119550204973494, companyId=1243291003331920623, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Shaanxi Key Laboratory of Research and Utilization of Resource Plants on the Loess Plateau, College of Life Sciences, Yan'an University, Yan'an 716000, Shaanxi, China), AuthorCompanyExt(id=1243291003352892146, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, companyId=1243291003331920623, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=延安大学 生命科学学院, 陕西省黄土高原资源植物研究与利用省市共建重点实验室, 陕西 延安 716000)])], figs=[ArticleFig(id=1243291007295537202, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=EN, label=Figure 1, caption=
Biosynthesis, transformation and degradation of anthranilate in Pseudomonas aeruginosa., figureFileSmall=nbbiU2nf1wsmy6NJFoUXgQ==, figureFileBig=uF1rhvFM2m0ITEpjImQcpw==, tableContent=null), ArticleFig(id=1243291007492669504, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=CN, label=图1, caption=
铜绿假单胞菌中邻氨基苯甲酸的生物合成、转化与降解示意图, figureFileSmall=nbbiU2nf1wsmy6NJFoUXgQ==, figureFileBig=uF1rhvFM2m0ITEpjImQcpw==, tableContent=null), ArticleFig(id=1243291007626887241, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=EN, label=Figure 2, caption=
The growth of Pseudomonas aeruginosa strains in different carbon source media. A−D: The growth of PAO1 and ΔantABC in MMP minimal salts medium with one of 20 amino acids as the sole carbon source. E−H: The growth curves of PAO1, ΔantABC and its complementary strain in liquid medium TSB, MMP minimal salts+10 mmol/L tryptophan (Trp), MMP minimal salts+20% glucose (Glu) and MMP minimal salts+10 mmol/L proline (Pro). All data represent at least three independent experiments. The error line represents the standard deviation. ***: P < 0.001., figureFileSmall=kx4/OruBBCTb03QSjGrWZg==, figureFileBig=A9Jin2DKoN5cFXlRI1k6Ag==, tableContent=null), ArticleFig(id=1243291007723356241, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=CN, label=图2, caption=
铜绿假单胞菌各菌株在不同碳源培养基中的生长情况, figureFileSmall=kx4/OruBBCTb03QSjGrWZg==, figureFileBig=A9Jin2DKoN5cFXlRI1k6Ag==, tableContent=null), ArticleFig(id=1243291007803048025, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=EN, label=Figure 3, caption=
KynABU-AntABC pathway is the only way for Pseudomonas aeruginosa to degrade tryptophan in MMP medium. A: The growth curves of PAO1, ΔantABC, and ΔkynU in MMP minimal salts+10 mmol/L tryptophan. B: The growth curves of PAO1, ΔantABC, and ΔkynU in MMP minimal salts+20% glucose. C: The growth curves of PAO1, ΔpqsA, ΔantABC, and ΔantABCΔpqsA in MMP minimal salts+10 mmol/L tryptophan. D: The growth curves of PAO1, ΔpqsA, ΔantABC, and ΔantABCΔpqsA in MMP minimal salts+20% glucose. All data represent at least three independent experiments. The error line represents the standard deviation., figureFileSmall=UM1Mx3mIYHihw8Anz1HEnA==, figureFileBig=HF6yFfpEQ4Igia+zUdjAVA==, tableContent=null), ArticleFig(id=1243291007933071455, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=CN, label=图3, caption=
KynABU-AntABC是铜绿假单胞菌在MMP培养基中降解色氨酸的唯一途径, figureFileSmall=UM1Mx3mIYHihw8Anz1HEnA==, figureFileBig=HF6yFfpEQ4Igia+zUdjAVA==, tableContent=null), ArticleFig(id=1243291008058900582, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=EN, label=Figure 4, caption=
Effect of deletion mutation antABC on biofilm formation of Pseudomonas aeruginosa. A, B: Biofilm formation and quantitative analysis of different strains on 96-well plates. C, D: The expression levels of biofilm-related genes in PAO1, ΔantABC and its complementary strain were detected by pel'-lacZ and psl'-lacZ transcription fusion. All data represent at least three independent experiments. The error line represents the standard deviation. *: P < 0.05; **: P < 0.01; ***: P < 0.001; ns: No significant difference., figureFileSmall=cr0ew+cGFqeCXx7u3hQ2xw==, figureFileBig=ztSEWbmKRveZSym/4Jawrg==, tableContent=null), ArticleFig(id=1243291008339918960, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=CN, label=图4, caption=
缺失突变antABC对铜绿假单胞菌生物被膜形成的影响, figureFileSmall=cr0ew+cGFqeCXx7u3hQ2xw==, figureFileBig=ztSEWbmKRveZSym/4Jawrg==, tableContent=null), ArticleFig(id=1243291008591577210, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=EN, label=Figure 5, caption=
Effect of deletion mutation antABC on pyocyanin biosynthesis of Pseudomonas aeruginosa. A, B: Synthesis and quantitative analysis of pyocyanin from different strains in PB medium. C, D: The expression levels of pyocyanin synthesis-related genes in PAO1, ΔantABC and its complementary strain were detected by phz1'-lacZ and phz2'-lacZ transcription fusion. All data represent at least three independent experiments. The error line represents the standard deviation. *: P < 0.05; **: P < 0.01; ***: P < 0.001; ns: No significant difference., figureFileSmall=Oz3p1mval7zW7lK3GTabzg==, figureFileBig=EDFCm2Z46WTeoDGLT2YDoQ==, tableContent=null), ArticleFig(id=1243291008717406337, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=CN, label=图5, caption=
缺失突变antABC对铜绿假单胞菌绿脓菌素合成的影响, figureFileSmall=Oz3p1mval7zW7lK3GTabzg==, figureFileBig=EDFCm2Z46WTeoDGLT2YDoQ==, tableContent=null), ArticleFig(id=1243291008826458249, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=EN, label=Figure 6, caption=
Effect of deletion mutation antABC on the swarming motility and twitching motility of Pseudomonas aeruginosa. A, B: Determination of swarming motility of P. aeruginosa different strains. C, D: Determination of swimming motility of P. aeruginosa different strains. E, F: Determination of twitching motility of P. aeruginosa different strains. All data represent at least three independent experiments. The error line represents the standard deviation. **: P < 0.01; ***: P < 0.001; ns: No significant difference., figureFileSmall=K2wg1cgN24+KbeYcwvX8Yg==, figureFileBig=6eN1HVjmhCUMWzyif6+E0A==, tableContent=null), ArticleFig(id=1243291009048756368, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=CN, label=图6, caption=
缺失突变antABC对铜绿假单胞菌集群运动和蹭行运动的影响, figureFileSmall=K2wg1cgN24+KbeYcwvX8Yg==, figureFileBig=6eN1HVjmhCUMWzyif6+E0A==, tableContent=null), ArticleFig(id=1243291009174585497, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=EN, label=Figure 7, caption=
Effect of deletion mutation antABC on virulence of Pseudomonas aeruginosa. A, B: Determination of the lesion area of Chinese cabbage treated with different P. aeruginosa strains. C, D: Survival curves of the Galleria mellonella larvae treated with different P. aeruginosa strains. All data represent at least three independent experiments. The error line represents the standard deviation. *: P < 0.05; ***: P < 0.001., figureFileSmall=kITG0b1L5Qn27Za1cYjlng==, figureFileBig=cV1+ZZ+DbfAl514N1q+TWg==, tableContent=null), ArticleFig(id=1243291009292026013, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=CN, label=图7, caption=
缺失突变antABC对铜绿假单胞菌毒力的影响, figureFileSmall=kITG0b1L5Qn27Za1cYjlng==, figureFileBig=cV1+ZZ+DbfAl514N1q+TWg==, tableContent=null), ArticleFig(id=1243291009459798182, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=EN, label=Figure 8, caption=
Effect of deletion mutation antABC on AQs production of Pseudomonas aeruginosa. A: The expression levels of pqsABCDE operon in PAO1, ΔantABC and its complementary strain were detected by pqsA'-lacZ transcription fusion. B: The expression levels of pqsH gene in PAO1, ΔantABC and its complementary strain were detected by pqsH'-lacZ transcription fusion. C: TLC analysis the AQs production of PAO1, ΔantABC and its complementary strain. Lane 1: 20 mmol/L PQS standard; Lane 2: 20 mmol/L HHQ standard; Lane 3: AQs extract of PAO1 (pME6032); Lane 4: AQs extract of ΔantABC (pME6032); Lane 5: AQs extract of ΔantABC (pME6032-antABC); Lane 6: AQs extract of ΔpqsA (pME6032). D: The expression levels of antR gene in PAO1, ΔantABC and its complementary strain were detected by antR'-lacZ transcription fusion. All data represent at least three independent experiments. The error line represents the standard deviation. *: P < 0.05; **: P < 0.01; ***: P < 0.001., figureFileSmall=CHTJTjWgBPR1gHEXFghY/A==, figureFileBig=2m4lmlUrsv6Jn7ljVsmOnw==, tableContent=null), ArticleFig(id=1243291009627570351, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=CN, label=图8, caption=
缺失突变antABC对铜绿假单胞菌AQs产生的影响, figureFileSmall=CHTJTjWgBPR1gHEXFghY/A==, figureFileBig=2m4lmlUrsv6Jn7ljVsmOnw==, tableContent=null), ArticleFig(id=1243291009820508345, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=EN, label=Table 1, caption=
List of primers used in this study
, figureFileSmall=null, figureFileBig=null, tableContent=
| Primers name | Sequences (5′→3′) |
| *: The underlined bases are the restriction sites. |
| antABC up F | ATCGGAATTCATCTCCTCGCTGATGTGC |
| antABC up R | AGAGGTCGAAGTAGATCCAGTTCTTTTC |
| antABC low F | CTGGATCTACTTCGACCTCTACCTGTGC |
| antABC low R | ATCGAAGCTTAGGAGATTCCCATGAACG |
| pqsA up F | AGCTGAATTCAAAATATTCCCGCAACTG |
| pqsA up R | TCGGCCAGGTATCGAAATCGAGGCGGAAC |
| pqsA low F | CGATTTCGATACCTGGCCGACACCCTTTATCAC |
| pqsA low R | ATCGAAGCTTGATCGCTGCCAGTTTGAC |
| kynU up F | AGCTGGATCCCACATGGACGATGGCTTC |
| kynU up R | TGGAGGATTTCGTTGCCGTCGAGGTAGATC |
| kynU low F | CGACGGCAACGAAATCCTCCAGAGCGAAG |
| kynU low R | AGCTAAGCTTGCCAGGGTCAGCAGGTAG |
| antABC F (pME6032) | AGCTGAATTCATGAACGCTACCCGCAGAAG |
| antABC R (pME6032) | AGTCAGATCTGCCTCCGACGAGGCGTCC |
| antABC F (pUCP24) | AGCTGAATTCATGAACGCTACCCGCAGA |
| antABC R (pUCP24) | AGTCGGTACCCAGCATCGACGAGCAGGT |
| phz1 F | AGCTGGTACCAAAGTTTCTCCGGCATAC |
| phz1 R | AGCTAAGCTTAGTGGGAATACCGTCACG |
| phz2 F | AGCTGGTACCATGGATGCCAGTCGATTC |
| phz2 R | AGCTAAGCTTGGTGGGAATACCGTCACG |
| pqsA F | AGCTCTCGAGTCCGGATGCATATCGCTG |
| pqsA R | GTCAGGATCCAACATGCCCGTTCCTCCG |
| pqsH F | CTGACTCGAGATGTCCGGAGGCGTGATG |
| pqsH R | GTCAGGATCCACCAGCAGCCAGTCGATG |
| antR F | AGCTCTCGAGGTCGACTGGTTGCCCTTG |
| antR R | AGCTGGATCCCTCAGGCTGTAGGCGTTG |
), ArticleFig(id=1243291009933754560, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=CN, label=表1, caption=
引物信息表
, figureFileSmall=null, figureFileBig=null, tableContent=
| Primers name | Sequences (5′→3′) |
| *: The underlined bases are the restriction sites. |
| antABC up F | ATCGGAATTCATCTCCTCGCTGATGTGC |
| antABC up R | AGAGGTCGAAGTAGATCCAGTTCTTTTC |
| antABC low F | CTGGATCTACTTCGACCTCTACCTGTGC |
| antABC low R | ATCGAAGCTTAGGAGATTCCCATGAACG |
| pqsA up F | AGCTGAATTCAAAATATTCCCGCAACTG |
| pqsA up R | TCGGCCAGGTATCGAAATCGAGGCGGAAC |
| pqsA low F | CGATTTCGATACCTGGCCGACACCCTTTATCAC |
| pqsA low R | ATCGAAGCTTGATCGCTGCCAGTTTGAC |
| kynU up F | AGCTGGATCCCACATGGACGATGGCTTC |
| kynU up R | TGGAGGATTTCGTTGCCGTCGAGGTAGATC |
| kynU low F | CGACGGCAACGAAATCCTCCAGAGCGAAG |
| kynU low R | AGCTAAGCTTGCCAGGGTCAGCAGGTAG |
| antABC F (pME6032) | AGCTGAATTCATGAACGCTACCCGCAGAAG |
| antABC R (pME6032) | AGTCAGATCTGCCTCCGACGAGGCGTCC |
| antABC F (pUCP24) | AGCTGAATTCATGAACGCTACCCGCAGA |
| antABC R (pUCP24) | AGTCGGTACCCAGCATCGACGAGCAGGT |
| phz1 F | AGCTGGTACCAAAGTTTCTCCGGCATAC |
| phz1 R | AGCTAAGCTTAGTGGGAATACCGTCACG |
| phz2 F | AGCTGGTACCATGGATGCCAGTCGATTC |
| phz2 R | AGCTAAGCTTGGTGGGAATACCGTCACG |
| pqsA F | AGCTCTCGAGTCCGGATGCATATCGCTG |
| pqsA R | GTCAGGATCCAACATGCCCGTTCCTCCG |
| pqsH F | CTGACTCGAGATGTCCGGAGGCGTGATG |
| pqsH R | GTCAGGATCCACCAGCAGCCAGTCGATG |
| antR F | AGCTCTCGAGGTCGACTGGTTGCCCTTG |
| antR R | AGCTGGATCCCTCAGGCTGTAGGCGTTG |
), ArticleFig(id=1243291010051195079, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=EN, label=Table 2, caption=
List of strains and plasmids used in this study
, figureFileSmall=null, figureFileBig=null, tableContent=
| Strains and plasmids | Related features | Source |
| Tc: Tetracycline; Gm: Gentamicin; Km: Kanamycin; Amp: Ampicillin. |
| Pseudomonas aeruginosa | | |
| PAO1 (ATCC 15692) | Wild-type | Laboratory collection |
| ΔantABC | Mutant of knockout antABC in PAO1 | This study |
| ΔpqsA | Mutant of knockout pqsA in PAO1 | This study |
| ΔkynU | Mutant of knockout kynU in PAO1 | This study |
| ΔantABCΔpqsA | antABC/pqsA double deletion mutant in PAO1 | This study |
| Escherichia coli | | |
| TG1 | F' [traD36 proAB+ lac Iq lacZΔM15], supE, thi-1, Δ(lac-proAB), Δ(mcrB-hsdSM)5, (rK− mK−) | Laboratory collection |
| S17-1 | RP4-2 (Km: : Tn7, Tc: : Mu-1), pro-82, LAMpir, recA1, endA1, thiE1, hsdR17, creC510 | Laboratory collection |
| Plasmids | | |
| pK18mobsacB | Kmr; sacB-based gene replacement vector | [18] |
| p34s-Gm | Ampr; Gm resistant cassette carrying vector | [19] |
| pME6032 | Broad-host-range vector, Tcr | [20] |
| pME6032-antABC | antABC was cloned into pME6032 | This study |
| pUCP24 | Broad-host-range vector, Gmr | [21] |
| pUCP24-antABC | antABC was cloned into pUCP24 | This study |
| pMini-CTX: : lacZ | Ω-FRT-attP-MCS, ori, int, oriT, Tcr | [22] |
| pMini-CTX-PpelF: : lacZ | PpelF promoter was cloned into pMini-CTX: : lacZ | Laboratory collection |
| pMini-CTX-PpslA: : lacZ | PpslA promoter was cloned into pMini-CTX: : lacZ | Laboratory collection |
| pMini-CTX-Pphz1: : lacZ | Pphz1 promoter was cloned into pMini-CTX: : lacZ | Laboratory collection |
| pMini-CTX-Pphz2: : lacZ | Pphz2 promoter was cloned into pMini-CTX: : lacZ | Laboratory collection |
| pMini-CTX-PpqsA: : lacZ | PpqsA promoter was cloned into pMini-CTX: : lacZ | Laboratory collection |
| pMini-CTX-PpqsH: : lacZ | PpqsH promoter was cloned into pMini-CTX: : lacZ | Laboratory collection |
| pMini-CTX-PantR: : lacZ | PantR promoter was cloned into pMini-CTX: : lacZ | Laboratory collection |
), ArticleFig(id=1243291010193801422, tenantId=1146029695717560320, journalId=1192105938417971205, articleId=1242119550204973494, language=CN, label=表2, caption=
菌株和质粒信息表
, figureFileSmall=null, figureFileBig=null, tableContent=
| Strains and plasmids | Related features | Source |
| Tc: Tetracycline; Gm: Gentamicin; Km: Kanamycin; Amp: Ampicillin. |
| Pseudomonas aeruginosa | | |
| PAO1 (ATCC 15692) | Wild-type | Laboratory collection |
| ΔantABC | Mutant of knockout antABC in PAO1 | This study |
| ΔpqsA | Mutant of knockout pqsA in PAO1 | This study |
| ΔkynU | Mutant of knockout kynU in PAO1 | This study |
| ΔantABCΔpqsA | antABC/pqsA double deletion mutant in PAO1 | This study |
| Escherichia coli | | |
| TG1 | F' [traD36 proAB+ lac Iq lacZΔM15], supE, thi-1, Δ(lac-proAB), Δ(mcrB-hsdSM)5, (rK− mK−) | Laboratory collection |
| S17-1 | RP4-2 (Km: : Tn7, Tc: : Mu-1), pro-82, LAMpir, recA1, endA1, thiE1, hsdR17, creC510 | Laboratory collection |
| Plasmids | | |
| pK18mobsacB | Kmr; sacB-based gene replacement vector | [18] |
| p34s-Gm | Ampr; Gm resistant cassette carrying vector | [19] |
| pME6032 | Broad-host-range vector, Tcr | [20] |
| pME6032-antABC | antABC was cloned into pME6032 | This study |
| pUCP24 | Broad-host-range vector, Gmr | [21] |
| pUCP24-antABC | antABC was cloned into pUCP24 | This study |
| pMini-CTX: : lacZ | Ω-FRT-attP-MCS, ori, int, oriT, Tcr | [22] |
| pMini-CTX-PpelF: : lacZ | PpelF promoter was cloned into pMini-CTX: : lacZ | Laboratory collection |
| pMini-CTX-PpslA: : lacZ | PpslA promoter was cloned into pMini-CTX: : lacZ | Laboratory collection |
| pMini-CTX-Pphz1: : lacZ | Pphz1 promoter was cloned into pMini-CTX: : lacZ | Laboratory collection |
| pMini-CTX-Pphz2: : lacZ | Pphz2 promoter was cloned into pMini-CTX: : lacZ | Laboratory collection |
| pMini-CTX-PpqsA: : lacZ | PpqsA promoter was cloned into pMini-CTX: : lacZ | Laboratory collection |
| pMini-CTX-PpqsH: : lacZ | PpqsH promoter was cloned into pMini-CTX: : lacZ | Laboratory collection |
| pMini-CTX-PantR: : lacZ | PantR promoter was cloned into pMini-CTX: : lacZ | Laboratory collection |
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