CN112410343B - 基于crispr的试剂盒及其应用 - Google Patents
基于crispr的试剂盒及其应用 Download PDFInfo
- Publication number
- CN112410343B CN112410343B CN202011512116.5A CN202011512116A CN112410343B CN 112410343 B CN112410343 B CN 112410343B CN 202011512116 A CN202011512116 A CN 202011512116A CN 112410343 B CN112410343 B CN 112410343B
- Authority
- CN
- China
- Prior art keywords
- gene
- clfa
- crispr
- staphylococcus aureus
- meca
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/11—DNA or RNA fragments; Modified forms thereof; Non-coding nucleic acids having a biological activity
- C12N15/113—Non-coding nucleic acids modulating the expression of genes, e.g. antisense oligonucleotides; Antisense DNA or RNA; Triplex- forming oligonucleotides; Catalytic nucleic acids, e.g. ribozymes; Nucleic acids used in co-suppression or gene silencing
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/14—Hydrolases (3)
- C12N9/16—Hydrolases (3) acting on ester bonds (3.1)
- C12N9/22—Ribonucleases RNAses, DNAses
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
- C12Q1/6844—Nucleic acid amplification reactions
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
- C12Q1/6876—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes
- C12Q1/6888—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for detection or identification of organisms
- C12Q1/689—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for detection or identification of organisms for bacteria
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/10—Type of nucleic acid
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q2600/00—Oligonucleotides characterized by their use
- C12Q2600/158—Expression markers
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12R—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C12C - C12Q, RELATING TO MICROORGANISMS
- C12R2001/00—Microorganisms ; Processes using microorganisms
- C12R2001/01—Bacteria or Actinomycetales ; using bacteria or Actinomycetales
- C12R2001/44—Staphylococcus
- C12R2001/445—Staphylococcus aureus
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Genetics & Genomics (AREA)
- Molecular Biology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- General Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Physics & Mathematics (AREA)
- Immunology (AREA)
- Plant Pathology (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
本发明提供了crRNA 1,其能识别clfA的SEQ ID NO.1所示靶点,还提供了crRNA2,其能识别mecA的SEQ ID NO.2所示靶点。本发明还提供了crRNA1和2组成的组合物,及基于CRISPR的试剂盒及其进一步的检测应用。本发明经反复筛选得出clfA、mecA基因的识别靶点,进而成功实现灵敏、特异检测MRSA。
Description
技术领域
本发明涉及一种基于CRISPR的试剂盒及其应用。
背景技术
金黄色葡萄球菌(金葡菌)是一种重要的人类机会致病菌,可以引起多种疾病,如:心内膜炎,肺炎,中毒性休克综合征等。青霉素的发现使感染金葡菌的患者得到了有效治疗,但随着抗生素的大面积使用,很快出现了对甲氧西林耐药的金黄色葡萄球菌(MRSA)。因此构建操作简便的MRSA快速筛查测试非常有必要。CRISPR-Cas(Clustered RegularlyInterspaced Short Palindromic Repeats and CRISPR-associated (Cas) proteins)系统为基因组编辑提供了革命性的工具,具有替代活性的Cas蛋白成为一种检测核酸敏感性的强有力的工具。最近的研究显示利用这些新的CRISPR-Cas技术为病原体和疾病检测提供低成本和实用诊断工具的潜力。Cas12a使用单一的多结构域效应蛋白发挥作用,由一个CRISPR RNA(crRNA)和一个Cas蛋白组装成一个核糖核酸复合物,该crRNA包含针对特定DNA序列的信息。这些多结构域效应蛋白通过识别与目标DNA相邻的PAM序列,使crRNA与目标序列互补,进而发生核酸酶剪切作用。
发明内容
一方面,本发明提供了一种crRNA 1,其能识别金葡菌特异性识别基因clfA的SEQID NO.1所示靶点,或者序列如SEQ ID NO.3所示。
一方面,本发明提供了一种crRNA 2,其能识别甲氧西林耐药基因mecA的SEQ IDNO.2所示靶点,或者序列如SEQ ID NO.4所示。
对应地,本发明提供了上述crRNA 1与crRNA 2的组合形式- crRNA组合物,其可用于检测MRSA金葡菌。
进一方面,本发明提供了一种含上述crRNA组合物的试剂盒,其可含有cas12a蛋白,可称为基于CRISPR-Cas12a的试剂盒。试剂盒中可含有单链DNA荧光探针,结构可为5’6-FAM-TTTTTTTTTTTT-3’BHQ1。
对应地,本发明提供了使用上述基因或其组合应用形式,用于检测MRSA的方法,该方法可用于非诊断目的,可判定样品中是否含有甲氧西林耐药基因或耐药金葡菌,样品可为临床分离的金葡菌标本。检测可包括预先对样品进行clfA、mecA基因扩增,扩增方法可为恒温扩增,如为RAA重组酶介导等温核酸扩增,扩增金葡菌clfA基因用的引物A,其可包含上游引物ATGAATATGAAGAAAAAAGAAAAACACGCAATTC和下游引物ACGCTACTTGAATCATTACTTTTGCTTTCGTTAC;扩增甲氧西林耐药基因mecA用的引物B,其可包含上游引物CCCAATTTTGATCCATTTGTTGTTTGATATAGTCTTCAGA和下游引物GAATGCAGAAAGACCAAAGCATACATATTGAAAA。
本发明的有益效果为:经反复筛选得出clfA、mecA基因的识别靶点,进而成功实现灵敏、特异检测MRSA。
附图说明
图1为clfA基因特异性检测结果
图2为mecA基因特异性检测结果
图3为实施例2样品鉴定结果。
具体实施方式
下面各实施例均主要涉及如下基因:
1. 金葡菌特异性识别基因clfA,识别靶点SEQ ID NO.1:TTTTGGACTACTCAGCAGTAAAGA
crRNA SEQ ID NO.3: UAAUUUCUACUAAGUGUAGAUGGACUACUCAGCAGUAAAGA
RAA恒温扩增引物:
上游引物:ATGAATATGAAGAAAAAAGAAAAACACGCAATTC
下游引物:ACGCTACTTGAATCATTACTTTTGCTTTCGTTAC
2. 耐甲氧西林耐药基因mecA,识别靶点SEQ ID NO.2:TTTCGGTCTAAAATTTTACCACGT
crRNA SEQ ID NO.4: UAAUUUCUACUAAGUGUAGAUGGUCUAAAAUUUUACCACGU
RAA恒温扩增引物:
上游引物:CCCAATTTTGATCCATTTGTTGTTTGATATAGTCTTCAGA
下游引物:GAATGCAGAAAGACCAAAGCATACATATTGAAAA
3. 荧光探针:5’6-FAM-TTTTTTTTTTTT-3’BHQ1
实施例1:
用CRISPR-Cas12a结合RAA恒温扩增技术检测MRSA中clfA基因和mecA基因,为了便于计算基因拷贝数,分别使用包含clfA基因和mecA基因的合成质粒进行灵敏度检测,进一步使用实验室保存的细菌进行特异度检测。具体包括以下步骤:
(1)以样本基因组DNA(灵敏度检测时使用合成质粒的DNA,细菌实验时使用实验室保存的细菌的DNA)为模板,使用RAA核酸扩增试剂对clfA基因和mecA基因分别进行核酸扩增。反应体系共50ul,包括:41.5ul A Buffer,2.5ul B Buffer,2ul 样本DNA,2ul上游引物,2ul下游引物。
(引物序列:clfA基因上游引物:ATGAATATGAAGAAAAAAGAAAAACACGCAATTC,下游引物:ACGCTACTTGAATCATTACTTTTGCTTTCGTTAC;
mecA基因上游引物:CCCAATTTTGATCCATTTGTTGTTTGATATAGTCTTCAGA,下游引物:GAATGCAGAAAGACCAAAGCATACATATTGAAAA)
具体操作步骤:
a.向装有检测干粉酶制剂的检测单元管中加入41.5ul A Buffer、2.0ul上游引物(10uM)、2.0ul下游引物(10uM)。
b.向检测单元管中加入2.0ul样本DNA(质粒DNA或细菌DNA)。
c.再向检测单元管中加入2.5ul的B Buffer,混合均匀,低速离心10秒钟。
d.将检测单元管置于37℃恒温培养箱或恒温水浴锅中孵育30分钟后得到扩增产物。
e. 反应结束后,取5-10ul反应体系进行电泳检测,使用酚:氯仿:异戊醇(25:24:1)抽提反应溶液1:1(体积比)进行纯化,12000rpm/min离心3-5分钟,取上清进行点用检测。将纯化后的产物进行测序,测序结果如下:
clfA扩增序列为:
CGTGTAAATCGATTGGCGTGGCTTCAGTGCTTGTAGGTACGTTAATCGGTTTTGGACTACTCAGCAGTAAAGAAGCAGATGCAAGTGAAAATAGTGTTACGCAATCTGATAGCGCAAGTAACGAAAGCAAAAGTAATGATTCAAGTAGCGTAATA
mecA扩增序列为:
TCATACTTAGTTCTTTAGCGATTGCTTTATAATCTTTTTTAGATACATTCTTTGGAACGATGCCTATCTCATATGCTGTTCCTGTATTGGCCAATTCCACATTGTTTCGGTCTAAAATTTTACCACGTTCTGATTTTAAATTTTCAATATGTATGCTTTGGTCTTTCTGCATTCA
将测序得到的基因序列与Gene bank上基因序列进行BLAST比对,结果显示:clfA与Staphylococcus aureus strain pt217 chromosome, complete genome 100%相同;mecA与Staphylococcus aureus strain pt217 chromosome, complete genome 100%相同。
(2)分别检测clfA基因和mecA基因。检测体系共50ul包括:扩增产物5ul(上步扩增产物),Cas12a(1 pM)蛋白5ul,Buffer 5ul,单链DNA荧光探针(10uM)5ul,crRNA 2.5ul(上述crRNA),无酶水27.5ul。将检测体系置于96孔培养皿,将培养皿放置于酶标仪中,以激发光494nm、发射光520nm进行荧光强度检测,每隔2min检测一次,37℃下连续检测60min,得到连续的荧光值报告。
(crRNA序列:clfA:UAAUUUCUACUAAGUGUAGAUGGACUACUCAGCAGUAAAGA,
mecA:UAAUUUCUACUAAGUGUAGAUGGUCUAAAAUUUUACCACGU)
检测结果:
(1)灵敏度
评价该方法灵敏度时,为了便于计算基因拷贝数选择合成质粒进行实验。将合成质粒按浓度梯度稀释,浓度依次为10-5,10-4,10-3,10-2,10-1,10-0 拷贝,按上述方法依次扩增检测,结果如下:该方法可以检测到10-3 拷贝待测基因;只有同时加入相对应的crRNA,cas12a蛋白,荧光探针,阳性基因,才可以检测到荧光值。
2)特异度
我们用实验室保存的表皮葡萄球菌同时进行检测,如图1,样本1,样本2为实验室保存金葡菌,与表皮葡萄球菌明显区分开。如图2,样本1,样本2,样本3为实验室保存耐甲氧西林金黄色葡萄球菌,样本4,样本5为甲氧西林敏感金黄色葡萄球菌,两者可明显区分。
实施例2:
一、样品采集
实验中使用的细菌样品为临床分离的金黄色葡萄球菌。
二、实验方法
(1)DNA模板的制备
采用DNA试剂盒从细菌样品中提取全基因组DNA。从-80℃冰箱内取出细菌样品冻存管,放于4℃冰箱复温5小时,在超净台中采用无菌接种环快速蘸取菌液,以分段划线法接种于哥伦比亚血琼脂培养板上,37℃恒温箱孵育20小时,挑取血平板上单个菌落,接种于脑心浸液液体培养基中,37℃振荡培养16小时。取2ml菌液按照说明书操作。
(2)RAA恒温核酸扩增
使用RAA核酸扩增试剂对clfA基因和mecA基因分别进行核酸扩增。反应体系共50ul,包括:41.5ul A Buffer,2.5ul B Buffer,2ul 样本DNA,2ul上游引物,2ul下游引物。
a.向装有检测干粉酶制剂的检测单元管中加入41.5ul A Buffer、2.0ul上游引物(10uM)、2.0ul下游引物(10uM)。
b.向检测单元管中加入2.0ul样本DNA。
c.再向检测单元管中加入2.5ul的B Buffer,混合均匀,低速离心10秒钟。
d.将检测单元管置于37℃恒温培养箱或恒温水浴锅中孵育30分钟后得到扩增产物。
(3)CRISPR-Cas12a检测
分别检测clfA基因和mecA基因:
检测体系共50ul包括:扩增产物5ul,Cas12a(1 pM)蛋白5ul,Buffer 5ul,单链DNA荧光探针(10uM)5ul,crRNA 2.5ul,无酶水27.5ul。将检测体系置于96孔培养皿,将培养皿放置于酶标仪中,以激发光494nm、发射光520nm进行荧光强度检测,每隔2min检测一次,37℃下连续检测60min,得到连续的荧光值报告。
三、检测结果
检测结果如图3所示,clfA基因和mecA基因同时检测阳性,判定为耐甲氧西林金黄色葡萄球菌。
序列表
<110> 郑州大学
<120> 基于CRISPR的试剂盒及其应用
<160> 4
<170> SIPOSequenceListing 1.0
<210> 1
<211> 24
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 1
ttttggacta ctcagcagta aaga 24
<210> 2
<211> 24
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 2
tttcggtcta aaattttacc acgt 24
<210> 3
<211> 41
<212> RNA
<213> 人工序列(Artificial Sequence)
<400> 3
uaauuucuac uaaguguaga uggacuacuc agcaguaaag a 41
<210> 4
<211> 41
<212> RNA
<213> 人工序列(Artificial Sequence)
<400> 4
uaauuucuac uaaguguaga uggucuaaaa uuuuaccacg u 41
Claims (4)
1.检测MRSA金葡菌用crRNA组合物,包含SEQ ID NO.3所示的crRNA 1和SEQ ID NO.4所示的crRNA 2。
2.基于CRISPR检测MRSA金葡菌用的试剂盒,其包含权利要求1所述crRNA组合物。
3.如权利要求2所述的试剂盒,其特征是,所述试剂盒还包含有cas12a蛋白。
4.一种非诊断目的检测MRSA金葡菌的方法,包括使用任一在先权利要求所述试剂盒。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310047377.1A CN116144660A (zh) | 2020-12-19 | 2020-12-19 | 基于新crispr靶点的mrsa菌检测 |
CN202011512116.5A CN112410343B (zh) | 2020-12-19 | 2020-12-19 | 基于crispr的试剂盒及其应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011512116.5A CN112410343B (zh) | 2020-12-19 | 2020-12-19 | 基于crispr的试剂盒及其应用 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202310047377.1A Division CN116144660A (zh) | 2020-12-19 | 2020-12-19 | 基于新crispr靶点的mrsa菌检测 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN112410343A CN112410343A (zh) | 2021-02-26 |
CN112410343B true CN112410343B (zh) | 2023-02-21 |
Family
ID=74782647
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011512116.5A Active CN112410343B (zh) | 2020-12-19 | 2020-12-19 | 基于crispr的试剂盒及其应用 |
CN202310047377.1A Pending CN116144660A (zh) | 2020-12-19 | 2020-12-19 | 基于新crispr靶点的mrsa菌检测 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202310047377.1A Pending CN116144660A (zh) | 2020-12-19 | 2020-12-19 | 基于新crispr靶点的mrsa菌检测 |
Country Status (1)
Country | Link |
---|---|
CN (2) | CN112410343B (zh) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109642230A (zh) * | 2016-08-16 | 2019-04-16 | 加利福尼亚大学董事会 | 通过杂交找到低丰度序列(flash)的方法 |
CN110093434A (zh) * | 2019-05-17 | 2019-08-06 | 宁波基内生物技术有限公司 | 一种引物和探针组合物及试剂盒 |
CN110734988A (zh) * | 2018-07-20 | 2020-01-31 | 上海仁度生物科技有限公司 | 一种耐甲氧西林金黄色葡萄球菌(mrsa)核酸恒温扩增方法 |
CN111378722A (zh) * | 2019-11-04 | 2020-07-07 | 江苏大学 | 一种基于CRISPR-Cas12g的特异性核酸片段纳米荧光痕量快速检测方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103173561B (zh) * | 2013-04-11 | 2016-01-06 | 上海市普陀区人民医院 | 检测耐甲氧西林金黄色葡萄球菌中耐药基因mecA的引物和探针 |
CN105385780A (zh) * | 2015-12-29 | 2016-03-09 | 杭州迪安生物技术有限公司 | 耐甲氧西林金黄色葡萄球菌快速检测的试剂盒及其应用 |
US11149269B2 (en) * | 2017-05-15 | 2021-10-19 | New York University | Compositions and methods for non-antibiotic treating of bacterial infections by blocking or disrupting bacterial genes involved in virulence or viability |
CN107746879A (zh) * | 2017-12-01 | 2018-03-02 | 深圳市计量质量检测研究院 | 检测金黄色葡萄球菌的rpa引物、探针、试剂盒和检测方法 |
CN110684823A (zh) * | 2019-10-23 | 2020-01-14 | 海南大学 | 一种基于试纸条的Cas12a酶的微生物快速诊断技术 |
CN111321234B (zh) * | 2020-02-08 | 2023-10-03 | 天津科技大学 | 一种基于CRISPR-Cas13a系统检测微生物的方法及应用 |
CN111676272A (zh) * | 2020-07-03 | 2020-09-18 | 上海交通大学 | 基于Cas12a/crRNA的食源致病菌检测方法 |
-
2020
- 2020-12-19 CN CN202011512116.5A patent/CN112410343B/zh active Active
- 2020-12-19 CN CN202310047377.1A patent/CN116144660A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109642230A (zh) * | 2016-08-16 | 2019-04-16 | 加利福尼亚大学董事会 | 通过杂交找到低丰度序列(flash)的方法 |
CN110734988A (zh) * | 2018-07-20 | 2020-01-31 | 上海仁度生物科技有限公司 | 一种耐甲氧西林金黄色葡萄球菌(mrsa)核酸恒温扩增方法 |
CN110093434A (zh) * | 2019-05-17 | 2019-08-06 | 宁波基内生物技术有限公司 | 一种引物和探针组合物及试剂盒 |
CN111378722A (zh) * | 2019-11-04 | 2020-07-07 | 江苏大学 | 一种基于CRISPR-Cas12g的特异性核酸片段纳米荧光痕量快速检测方法 |
Non-Patent Citations (3)
Title |
---|
Creating CRISPR-responsive smart materials for diagnostics and programmable cargo release;Raphael V. Gayet et al.;《NATURE PROTOCOLS》;20200930;第15卷;摘要部分,第3046页表2 * |
实时荧光定量PCR检测耐甲氧西林金黄色葡萄球菌方法的建立与应用评价;牟晓峰等;《中华医院感染学杂志》;20111010(第19期);第4185-4187页 * |
金黄色葡萄球菌耐药及基于RAA-Cas12a的快速检测;王瑛;《中国优秀博硕士学位论文全文数据库(硕士)医药卫生科技辑》;20220515(第5期);E060-118 * |
Also Published As
Publication number | Publication date |
---|---|
CN116144660A (zh) | 2023-05-23 |
CN112410343A (zh) | 2021-02-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110541022B (zh) | 基于CRISPR-Cas12a系统的结核分枝杆菌复合群检测试剂盒 | |
JP6666268B2 (ja) | 液滴ソートによるヌクレオチド配列排除富化(needls) | |
CN102482712B (zh) | 检测抗生素耐药细菌的方法和试剂盒 | |
KR20170018346A (ko) | 미생물 검출 방법 및 특성 규명 방법 | |
CN113249499B (zh) | 一种伤寒沙门氏菌的检测试剂盒、其制备方法及其应用 | |
CN116656850B (zh) | 基于CRISPR/Cas12a-RPA快速检测水稻白叶枯病菌的序列组合及其应用 | |
CN111394515B (zh) | 一种用于检测犬细小病毒的lamp引物组、荧光可视化快速试剂盒及方法 | |
CN114196766B (zh) | 用于特异鉴定水稻白叶枯菌Xoo的分子标记、引物对、试剂盒和方法 | |
CN115747353A (zh) | 一种用于单核细胞增生李斯特菌检测的引物组、试剂、试剂盒及检测方法 | |
CN116479150A (zh) | 单管一步法RPA-Cas12a/Cas13a快速检测耐甲氧西林金黄色葡萄球菌 | |
CN112410343B (zh) | 基于crispr的试剂盒及其应用 | |
CN117210437A (zh) | 两种基因编辑工具酶鉴定及其在核酸检测中的应用 | |
CN116144811B (zh) | 用于检测脑脊液病原的多重引物组、方法和试剂盒 | |
CN109988855B (zh) | 用于检测六种曲霉的lamp引物组合及其应用 | |
Kamusoko et al. | Purification and amplification of DNA from cellulolytic bacteria: Application for biogas production from crop residues | |
CN114085917B (zh) | 基于CRISPR/Cas12a-LAMP快速可视化检测福氏志贺氏菌的方法和试剂盒 | |
CN113201599B (zh) | 一种基于PCR和nanopore测序检测脑脊液感染哪些病原体的方法 | |
CN114990244A (zh) | 一种基于mira荧光法快速检测金黄色葡萄球菌的检测方法 | |
RU2455364C2 (ru) | Способ идентификации микобактерий с помощью полимеразной цепной реакции | |
EP4365292A1 (en) | Aptamer for the detection of the microorganism bacillus subtilis | |
RU2776163C1 (ru) | Способ выявления ДНК бактерии Mycobacterium tuberculosis с помощью изотермической петлевой амплификации | |
RU2783023C1 (ru) | Способ выявления гена холодового шока csh1 у штаммов vibrio cholerae с помощью пцр в режиме реального времени | |
CN114164296B (zh) | 一种用于检测寡雄腐霉菌的引物探针组合物、试剂盒及应用和检测方法 | |
WO2024048236A1 (ja) | ポリヌクレオチド、キット、及び、診断方法 | |
RU2751248C2 (ru) | Праймеры для выявления видов monilinia laxa, monilinia fruticola, monilinia fructigena |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |