CN110592032A - 泛素连接酶Smurf1突变体、编码基因及用途 - Google Patents
泛素连接酶Smurf1突变体、编码基因及用途 Download PDFInfo
- Publication number
- CN110592032A CN110592032A CN201910973872.9A CN201910973872A CN110592032A CN 110592032 A CN110592032 A CN 110592032A CN 201910973872 A CN201910973872 A CN 201910973872A CN 110592032 A CN110592032 A CN 110592032A
- Authority
- CN
- China
- Prior art keywords
- leu
- smurf1
- gly
- arg
- glu
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/43—Enzymes; Proenzymes; Derivatives thereof
- A61K38/53—Ligases (6)
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- 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
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
- C12N15/85—Vectors or expression systems specially adapted for eukaryotic hosts for animal cells
-
- 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
- C12N9/93—Ligases (6)
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y603/00—Ligases forming carbon-nitrogen bonds (6.3)
- C12Y603/02—Acid—amino-acid ligases (peptide synthases)(6.3.2)
- C12Y603/02019—Ubiquitin-protein ligase (6.3.2.19), i.e. ubiquitin-conjugating enzyme
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Genetics & Genomics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Health & Medical Sciences (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- General Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Medicinal Chemistry (AREA)
- Biomedical Technology (AREA)
- Pharmacology & Pharmacy (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Immunology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Biophysics (AREA)
- Gastroenterology & Hepatology (AREA)
- Plant Pathology (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Peptides Or Proteins (AREA)
Abstract
本发明属于生物医药领域,涉及一种致癌相关蛋白Smurf1蛋白的新位点功能的发现与验证,此新位点突变后导致其蛋白功能的完全丧失。其意义在于Smurf1蛋白该69位点发生突变后会降低Smurf1作为E3连接酶活性的功能,进而抑制肿瘤发生。本发明进一步拓展和完善了肿瘤研究,为肿瘤的治疗和靶点药物的开发提供了一个新的靶标位点。
Description
技术领域
本发明涉及分子生物学和医学领域,具体涉及一种影响肿瘤形成的Smurf1蛋白新位点功能认识及其在肿瘤治疗中的应用。
背景技术
从上个世纪八十年代开始,恶性肿瘤发生率和死亡率呈现逐年上升趋势,已逐步成为人类生命的头号杀手。而且随着世界人口日趋老龄化,恶性肿瘤死亡人数将继续上升。目前,我国恶性肿瘤死亡病例总数占世界的近四分之一。恶性肿瘤对人类健康的危害已经引起我国的重视,针对该疾病的治疗也是医学研究人员和公共卫生部门关注的重要课题。
Smad泛素化调节因子1(Smurf1)是一种E3连接酶,能选择性地结合受体调节蛋白Smad家族的成员,并使其泛素化降解,进而调节信号通路。近几年研究发现,Smurf1在肠癌、胰腺癌和前列腺癌等癌症中高表达,表明其可能是肿瘤的一种原癌基因。
在前期研究中发现,Smurf1在胶质母细胞瘤(GBM)中大量表达,且与GBM预后相关(图1)。它通过PTEN对肿瘤的发生发挥重要作用。研究表明,Smurf1能泛素化PTEN。Smurf1上调会降低PTEN的活性,导致PI3K信号通路的持续激活,而Smurf1的缺失会显著抑制细胞增殖和肿瘤生长。因此,进一步了解Smurf1的激活可能会发现阻止肿瘤发生的潜在靶点。Smurf1磷酸化修饰是促进其底物泛素化的有效途径。然而,其分子机制尚不清楚。
发明内容
本发明所要解决的技术问题为:如何提供一种能抑制肿瘤形成的Smurf1的突变体。
本发明的技术方案为:泛素连接酶Smurf1突变体,该突变体由泛素连接酶Smurf1的第69位氨基酸替换为其他任意氨基酸得到,所述泛素连接酶Smurf1的氨基酸序列如SEQID No.1所示。
进一步地,所述泛素连接酶Smurf1的第69位氨基酸由酪氨酸突变为苯丙氨酸,其氨基酸序列如SEQ ID No.2所示。
多核苷酸,编码上述所述的泛素连接酶Smurf1突变体。
进一步地,该多核苷酸的碱基序列如SEQ ID No.3所示。
一种重组载体,包含上述所述的多核苷酸。
一种重组宿主细胞,含有上述所述的重组载体或表达上述所述的泛素连接酶Smurf1突变体蛋白。
我们验证了Smurf1第69位点突变在不同肿瘤细胞中的抑制功能,如:人胶质母细胞瘤、肺癌、结直肠癌等中的反应。
上述所述的突变体、多核苷酸、重组载或重组宿主细胞体在制备治疗肿瘤相关药物上的相关应用。
进一步地,所述肿瘤为人胶质母细胞瘤。
Smurf1第69位点突变后将影响其功能,我们进行FGFR1体外磷酸化实验,在FGFR1酶处理条件下,发现野生型的Smurf1能够被磷酸化,而Y69突变后,Smurf1不能被磷酸化。因为Smurf1是一个E3泛素连接酶,所以我们进行了体外泛素化实验,观察突变是否影响Smurf1的泛素化,结果表明第69位点氨基酸突变后,Smurf1不能再泛素化;并且FGFR1刺激后能够增强野生型Smurf1的泛素化,而不能增加Smurf1-Y69F的泛素化。进一步研究发现Smurf1第69位点氨基酸突变能抑制Smurf1蛋白活性,削弱其泛素化能力,进而抑制癌症进程。
与现有技术相比,本发明具有以下有益效果:
Smurf1蛋白在多种肿瘤细胞中高表达,对肿瘤的发生发展发挥重要作用。本发明提供的Smurf1蛋白位点突变后,能抑制Smurf1蛋白活性,影响Smurf1泛素化能力,进而抑制癌症发生。本发明为肿瘤的治疗和靶点药物的开发提供了一个新的靶标位点。
附图说明
图1:胶质母细胞瘤患者中Smurf1表达量高的患者生存率较低;
图2:突变质粒测序结果(部分);
图3:突变型与野生型质粒对比(部分);
图4:稳转细胞系稳转效果鉴定;
图5:稳转细胞系克隆形成实验结果;
图6:不同肿瘤的Smurf1第69位点不同突变的稳转细胞系克隆形成实验结果;
图7:Smurf1及突变蛋白功能差异鉴定结果。
具体实施方式
下面将结合实施例对本发明的实施方案进行详细描述。下列实施例仅用于说明本发明,而不应视为限定本发明的范围。实施例中未注明具体条件者,按照常规条件或制造商建议的条件进行。所用试剂或仪器未注明生产厂商者,均为可以通过市购获得的常规产品。
实施例1:表达载体构建
1.实验方法
Myc-Smurf1质粒、pET-21a质粒、HA-Ub质粒、慢病毒表达载体PCDH-3HA、慢病毒包装质粒PSPAX2和包膜质粒PMD2G购于Addgene。
(1)定点突变(以第69位氨基酸由Y到F突变“Y69F”为例,其他类型突变构建过程类似)
将Myc-Smurf1质粒(也可以使用插入有Smurf1的其它质粒)进行定点突变。所述Smurf1的氨基酸序列如SEQ ID No.1所示,其核苷酸序列如SEQ ID No.4所示。
具体操作如下:
定点突变的引物如下表所示:
引物名称 | 引物序列(5’-3’) | SEQ ID |
XQ5 | CACTATGATCTATTTGTTGGGAAA ACG | SEQ ID No:5 |
XQ6 | CTGGTTCCACTTTGGGTCCAA | SEQ ID No:6 |
PCR体系:模板Myc-Smurf1质粒10ng,正向引物XQ5(10μM)1.25μl,反向引物XQ6(10μM)1.25μl,Q5 Hot Start High-Fidelity 2X Master Mix(2X)12.5μl,反应体系总体积为25μl。
点突变PCR反应条件如下:
由此构建Myc-Smurf1-Y69F质粒并通过测序进行鉴定。
(2)构建慢病毒表达载体
使用Myc-Smurf1质粒、Myc-Smurf1-Y69F质粒构建慢病毒表达载体。通过PCR扩增、纯化PCR产物,回收得到目的片段Smurf1和Smurf1-Y69F。也可以用本领域技术人员知悉的其它手段制备目的片段Smurf1和Smurf1-Y69F(例如人工合成)。
双酶切环状质粒PCDH-3HA,回收线性载体PCDH-3HA双酶切体系:PCDH-3HAplasmid 3μg,NEB限制性内切酶EcoRI-HF 1μl,10×NEB cutsmart Buffer 2.5μl,ddH2Oto final volume 25μl。
使用Thermo Scientific GeneJET Gel Extraction Kit(Code#K0691)纯化回收目的片段Smurf1、Smurf1-Y69F和双酶切后的质粒PCDH-3HA,详细操作步骤参照说明书进行。
利用Vazyme Clone ExpressII Kit将Smurf1、Smurf1-Y69F分别和PCDH-3HA进行连接,经过DH5α菌落PCR和双酶切鉴定(NEB EcoRI-HF/XhoI+NEBSacI-HF)获得阳性克隆后,进行测序鉴定。
(3)构建大肠杆菌表达载体
使用Myc-Smurf1质粒、Myc-Smurf1-Y69F质粒构建大肠杆菌表达载体。通过PCR扩增、纯化PCR产物,回收得到目的片段Smurf1和Smurf1-Y69F。也可以用本领域技术人员知悉的其它手段制备目的片段Smurf1和Smurf1-Y69F(例如人工合成)。通过PCR方法为目的片段加上Flag标签。其引物为:5′-CACCATGGACTACAAGGACGATGACGACAAGGGTTCTGGAGGCTCGAACCCCGGGACA-3′(SEQ ID No:7)和5′-CTCCACAGCAAACCCGCA-3′(SEQ ID No:8)。
双酶切环状质粒pET21-DEST,回收线性载体,pET21-DEST双酶切体系:pET21-DESTplasmid 3μg,NEB限制性内切酶EcoRI-HF 1μl,10×NEB cutsmart Buffer 2.5μl,ddH2Oto final volume 25μl。
使用Thermo Scientific GeneJET Gel Extraction Kit(Code#K0691)纯化回收目的片段Smurf1、Smurf1-Y9F和双酶切后的质粒pET21-DEST,详细操作步骤参照说明书进行。
利用Vazyme Clone ExpressII Kit将Smurf1、Smurf1-Y69F分别和pET21-DEST进行连接,经过DH5α菌落PCR和双酶切鉴定(NEB EcoRI-HF/XhoI+NEBSacI-HF)获得阳性克隆后,进行测序鉴定。
2.实验结果
(1)质粒测序鉴定
DH5α感受态菌扩增质粒后所提质粒经测序鉴定提示点突变(图2)及各组载体构建成功(图3)。
实施例2:蛋白表达及功能鉴定
1.实验方法
(1)重组慢病毒包装
将空载体、野生型和突变型重组慢病毒表达载体分别使用PSPAX2和PMD2G质粒通过vigo转染293T细胞,转染后4h换液,换液后72h收集病毒液(转染的293T细胞的上清液),3000rpm离心5min,0.45μm滤膜过滤,分装后-80℃储存。
293T细胞培养于含10%胎牛血清(fetal bovine serum,FBS)(Gibco,GrandIsland,NY,USA)的DMEM(Dulbecco’s modified Eagle medium)(Gibco,Grand Island,NY,USA)中,培养液含100IU/ml青霉素和100μg/ml链霉素(Gibco)。细胞放于37℃5%CO2培养箱中培养。
(2)慢病毒感染细胞(以胶质母细胞瘤LN229-Smurf1-Y69F突变为例,其他类型感染过程类似)
以人胶质母细胞瘤LN229细胞汇合度为40%-60%时,每1cm2底面积铺30μl前面步骤
(2)制备的病毒液,感染LN229细胞。
LN229细胞培养于含10%胎牛血清的DMEM中,培养液含100IU/ml青霉素和100μg/ml链霉素。细胞放于37℃5%CO2培养箱中培养。
(3)Western blot方法检测Smurf1及突变蛋白
感染后第7天收集细胞提取蛋白样品,用Western blot检测Smurf1蛋白和β-actin蛋白表达水平
(4)平板克隆形成试验
取适量稳转细胞悬液接种到加有10%胎牛血清的DMEM的培养皿中(培养液含100IU/ml青霉素和100μg/ml链霉素)。以十字方向轻轻晃动培养皿,使细胞分散均匀。将培养皿置37℃、5%CO2中培养2周,中间根据培养液pH变化适时更换新鲜培养液。
当培养皿中出现肉眼可见克隆时,终止培养,弃去培养液,用PBS液小心浸洗2次,然后用4%多聚甲醛固定15分钟。弃多聚甲醛后用流水缓慢洗去残留的多聚甲醛。用1%结晶紫染液染色30分钟,流水缓慢洗去染液,空气干燥。
(5)Smurf1及突变蛋白体外表达及功能差异鉴定
BL21感受态菌扩增质粒pET-21a-Flag-Smurf1与pET-21a-Flag-Smurf1-Y69F后,使用IPTG诱导BL21表达目的蛋白,并进行纯化。使用纯化后的pET-21a-Flag-Smurf1与pET-21a-Flag-Smurf1-Y69F进行体外磷酸化与体外泛素化实验,分别用如图6所示抗体进行免疫印迹。
2.实验结果
(1)Western blot检测Smurf1蛋白表达水平
空载体几乎未见Smurf1,野生型和突变型的Smurf1蛋白表达水平显著高于空载体(图4)。上述结果说明:目的基因突变型Smurf1已成功导入LN229细胞并成功表达,Smurf1突变稳转细胞模型成功建立;
(2)平板克隆形成试验
如图5所示,各组间细胞生长速度差异较大。以空载体组为基准,高表达Smurf1后细胞生长较快,证明高表达Smurf1会加速肿瘤进程;Smurf1突变后,细胞生长速度明显减缓,证明该位点突变后能显著减缓肿瘤进程。
如图6所示,以空载体组为基准,不同类型肿瘤细胞高表达Smurf1后细胞生长皆较快,证明高表达Smurf1会加速多种肿瘤进程;Smurf1第69位点发生不同突变后,细胞生长速度明显减缓,证明该位点无论发生何种突变,能显著减缓肿瘤进程。
(3)Smurf1及突变蛋白功能差异鉴定
如图7所示,为了分析Smurf1第69位点突变后是否影响其功能,我们进行FGFR1体外磷酸化实验,在FGFR1酶处理条件下,发现野生型的Smurf1能够被磷酸化,而Y69突变后,Smurf1不能被磷酸化。因为Smurf1是一个E3泛素连接酶,所以我们进行了体外泛素化实验,观察突变是否影响Smurf1的泛素化,结果表明第69位点突变后,Smurf1不能再泛素化;并且FGFR1刺激后能够增强野生型Smurf1的泛素化,而不能增加Smurf1-Y69F的泛素化。
3.结果分析
本研究首次报道了Smurf1第69位点的新突变,通过慢病毒表达载体体系成功建立了此突变的稳转细胞模型,对其Smurf1蛋白表达水平的检测和细胞集落形成实验提示该突变能抑制癌症进程。经进一步研究发现Smurf1第69位点突变能抑制Smurf1蛋白活性,削弱其泛素化能力,进而抑制癌症进程。
序列表
<110> 北京理工大学
<120> 泛素连接酶Smurf1突变体、编码基因及用途
<160> 8
<170> SIPOSequenceListing 1.0
<210> 1
<211> 731
<212> PRT
<213> Homo sapiens
<400> 1
Met Ser Asn Pro Gly Thr Arg Arg Asn Gly Ser Ser Ile Lys Ile Arg
1 5 10 15
Leu Thr Val Leu Cys Ala Lys Asn Leu Ala Lys Lys Asp Phe Phe Arg
20 25 30
Leu Pro Asp Pro Phe Ala Lys Ile Val Val Asp Gly Ser Gly Gln Cys
35 40 45
His Ser Thr Asp Thr Val Lys Asn Thr Leu Asp Pro Lys Trp Asn Gln
50 55 60
His Tyr Asp Leu Tyr Val Gly Lys Thr Asp Ser Ile Thr Ile Ser Val
65 70 75 80
Trp Asn His Lys Lys Ile His Lys Lys Gln Gly Ala Gly Phe Leu Gly
85 90 95
Cys Val Arg Leu Leu Ser Asn Ala Ile Ser Arg Leu Lys Asp Thr Gly
100 105 110
Tyr Gln Arg Leu Asp Leu Cys Lys Leu Asn Pro Ser Asp Thr Asp Ala
115 120 125
Val Arg Gly Gln Ile Val Val Ser Leu Gln Thr Arg Asp Arg Ile Gly
130 135 140
Thr Gly Gly Ser Val Val Asp Cys Arg Gly Leu Leu Glu Asn Glu Gly
145 150 155 160
Thr Val Tyr Glu Asp Ser Gly Pro Gly Arg Pro Leu Ser Cys Phe Met
165 170 175
Glu Glu Pro Ala Pro Tyr Thr Asp Ser Thr Gly Ala Ala Ala Gly Gly
180 185 190
Gly Asn Cys Arg Phe Val Glu Ser Pro Ser Gln Asp Gln Arg Leu Gln
195 200 205
Ala Gln Arg Leu Arg Asn Pro Asp Val Arg Gly Ser Leu Gln Thr Pro
210 215 220
Gln Asn Arg Pro His Gly His Gln Ser Pro Glu Leu Pro Glu Gly Tyr
225 230 235 240
Glu Gln Arg Thr Thr Val Gln Gly Gln Val Tyr Phe Leu His Thr Gln
245 250 255
Thr Gly Val Ser Thr Trp His Asp Pro Arg Ile Pro Arg Asp Leu Asn
260 265 270
Ser Val Asn Cys Asp Glu Leu Gly Pro Leu Pro Pro Gly Trp Glu Val
275 280 285
Arg Ser Thr Val Ser Gly Arg Ile Tyr Phe Val Asp His Asn Asn Arg
290 295 300
Thr Thr Gln Phe Thr Asp Pro Arg Leu His His Ile Met Asn His Gln
305 310 315 320
Cys Gln Leu Lys Glu Pro Ser Gln Pro Leu Pro Leu Pro Ser Glu Gly
325 330 335
Ser Leu Glu Asp Glu Glu Leu Pro Ala Gln Arg Tyr Glu Arg Asp Leu
340 345 350
Val Gln Lys Leu Lys Val Leu Arg His Glu Leu Ser Leu Gln Gln Pro
355 360 365
Gln Ala Gly His Cys Arg Ile Glu Val Ser Arg Glu Glu Ile Phe Glu
370 375 380
Glu Ser Tyr Arg Gln Ile Met Lys Met Arg Pro Lys Asp Leu Lys Lys
385 390 395 400
Arg Leu Met Val Lys Phe Arg Gly Glu Glu Gly Leu Asp Tyr Gly Gly
405 410 415
Val Ala Arg Glu Trp Leu Tyr Leu Leu Cys His Glu Met Leu Asn Pro
420 425 430
Tyr Tyr Gly Leu Phe Gln Tyr Ser Thr Asp Asn Ile Tyr Met Leu Gln
435 440 445
Ile Asn Pro Asp Ser Ser Ile Asn Pro Asp His Leu Ser Tyr Phe His
450 455 460
Phe Val Gly Arg Ile Met Gly Leu Ala Val Phe His Gly His Tyr Ile
465 470 475 480
Asn Gly Gly Phe Thr Val Pro Phe Tyr Lys Gln Leu Leu Gly Lys Pro
485 490 495
Ile Gln Leu Ser Asp Leu Glu Ser Val Asp Pro Glu Leu His Lys Ser
500 505 510
Leu Val Trp Ile Leu Glu Asn Asp Ile Thr Pro Val Leu Asp His Thr
515 520 525
Phe Cys Val Glu His Asn Ala Phe Gly Arg Ile Leu Gln His Glu Leu
530 535 540
Lys Pro Asn Gly Arg Asn Val Pro Val Thr Glu Glu Asn Lys Lys Glu
545 550 555 560
Tyr Val Arg Leu Tyr Val Asn Trp Arg Phe Met Arg Gly Ile Glu Ala
565 570 575
Gln Phe Leu Ala Leu Gln Lys Gly Phe Asn Glu Leu Ile Pro Gln His
580 585 590
Leu Leu Lys Pro Phe Asp Gln Lys Glu Leu Glu Leu Ile Ile Gly Gly
595 600 605
Leu Asp Lys Ile Asp Leu Asn Asp Trp Lys Ser Asn Thr Arg Leu Lys
610 615 620
His Cys Val Ala Asp Ser Asn Ile Val Arg Trp Phe Trp Gln Ala Val
625 630 635 640
Glu Thr Phe Asp Glu Glu Arg Arg Ala Arg Leu Leu Gln Phe Val Thr
645 650 655
Gly Ser Thr Arg Val Pro Leu Gln Gly Phe Lys Ala Leu Gln Gly Ser
660 665 670
Thr Gly Ala Ala Gly Pro Arg Leu Phe Thr Ile His Leu Ile Asp Ala
675 680 685
Asn Thr Asp Asn Leu Pro Lys Ala His Thr Cys Phe Asn Arg Ile Asp
690 695 700
Ile Pro Pro Tyr Glu Ser Tyr Glu Lys Leu Tyr Glu Lys Leu Leu Thr
705 710 715 720
Ala Val Glu Glu Thr Cys Gly Phe Ala Val Glu
725 730
<210> 2
<211> 731
<212> PRT
<213> 人工序列(Artificial Sequence)
<400> 2
Met Ser Asn Pro Gly Thr Arg Arg Asn Gly Ser Ser Ile Lys Ile Arg
1 5 10 15
Leu Thr Val Leu Cys Ala Lys Asn Leu Ala Lys Lys Asp Phe Phe Arg
20 25 30
Leu Pro Asp Pro Phe Ala Lys Ile Val Val Asp Gly Ser Gly Gln Cys
35 40 45
His Ser Thr Asp Thr Val Lys Asn Thr Leu Asp Pro Lys Trp Asn Gln
50 55 60
His Tyr Asp Leu Phe Val Gly Lys Thr Asp Ser Ile Thr Ile Ser Val
65 70 75 80
Trp Asn His Lys Lys Ile His Lys Lys Gln Gly Ala Gly Phe Leu Gly
85 90 95
Cys Val Arg Leu Leu Ser Asn Ala Ile Ser Arg Leu Lys Asp Thr Gly
100 105 110
Tyr Gln Arg Leu Asp Leu Cys Lys Leu Asn Pro Ser Asp Thr Asp Ala
115 120 125
Val Arg Gly Gln Ile Val Val Ser Leu Gln Thr Arg Asp Arg Ile Gly
130 135 140
Thr Gly Gly Ser Val Val Asp Cys Arg Gly Leu Leu Glu Asn Glu Gly
145 150 155 160
Thr Val Tyr Glu Asp Ser Gly Pro Gly Arg Pro Leu Ser Cys Phe Met
165 170 175
Glu Glu Pro Ala Pro Tyr Thr Asp Ser Thr Gly Ala Ala Ala Gly Gly
180 185 190
Gly Asn Cys Arg Phe Val Glu Ser Pro Ser Gln Asp Gln Arg Leu Gln
195 200 205
Ala Gln Arg Leu Arg Asn Pro Asp Val Arg Gly Ser Leu Gln Thr Pro
210 215 220
Gln Asn Arg Pro His Gly His Gln Ser Pro Glu Leu Pro Glu Gly Tyr
225 230 235 240
Glu Gln Arg Thr Thr Val Gln Gly Gln Val Tyr Phe Leu His Thr Gln
245 250 255
Thr Gly Val Ser Thr Trp His Asp Pro Arg Ile Pro Arg Asp Leu Asn
260 265 270
Ser Val Asn Cys Asp Glu Leu Gly Pro Leu Pro Pro Gly Trp Glu Val
275 280 285
Arg Ser Thr Val Ser Gly Arg Ile Tyr Phe Val Asp His Asn Asn Arg
290 295 300
Thr Thr Gln Phe Thr Asp Pro Arg Leu His His Ile Met Asn His Gln
305 310 315 320
Cys Gln Leu Lys Glu Pro Ser Gln Pro Leu Pro Leu Pro Ser Glu Gly
325 330 335
Ser Leu Glu Asp Glu Glu Leu Pro Ala Gln Arg Tyr Glu Arg Asp Leu
340 345 350
Val Gln Lys Leu Lys Val Leu Arg His Glu Leu Ser Leu Gln Gln Pro
355 360 365
Gln Ala Gly His Cys Arg Ile Glu Val Ser Arg Glu Glu Ile Phe Glu
370 375 380
Glu Ser Tyr Arg Gln Ile Met Lys Met Arg Pro Lys Asp Leu Lys Lys
385 390 395 400
Arg Leu Met Val Lys Phe Arg Gly Glu Glu Gly Leu Asp Tyr Gly Gly
405 410 415
Val Ala Arg Glu Trp Leu Tyr Leu Leu Cys His Glu Met Leu Asn Pro
420 425 430
Tyr Tyr Gly Leu Phe Gln Tyr Ser Thr Asp Asn Ile Tyr Met Leu Gln
435 440 445
Ile Asn Pro Asp Ser Ser Ile Asn Pro Asp His Leu Ser Tyr Phe His
450 455 460
Phe Val Gly Arg Ile Met Gly Leu Ala Val Phe His Gly His Tyr Ile
465 470 475 480
Asn Gly Gly Phe Thr Val Pro Phe Tyr Lys Gln Leu Leu Gly Lys Pro
485 490 495
Ile Gln Leu Ser Asp Leu Glu Ser Val Asp Pro Glu Leu His Lys Ser
500 505 510
Leu Val Trp Ile Leu Glu Asn Asp Ile Thr Pro Val Leu Asp His Thr
515 520 525
Phe Cys Val Glu His Asn Ala Phe Gly Arg Ile Leu Gln His Glu Leu
530 535 540
Lys Pro Asn Gly Arg Asn Val Pro Val Thr Glu Glu Asn Lys Lys Glu
545 550 555 560
Tyr Val Arg Leu Tyr Val Asn Trp Arg Phe Met Arg Gly Ile Glu Ala
565 570 575
Gln Phe Leu Ala Leu Gln Lys Gly Phe Asn Glu Leu Ile Pro Gln His
580 585 590
Leu Leu Lys Pro Phe Asp Gln Lys Glu Leu Glu Leu Ile Ile Gly Gly
595 600 605
Leu Asp Lys Ile Asp Leu Asn Asp Trp Lys Ser Asn Thr Arg Leu Lys
610 615 620
His Cys Val Ala Asp Ser Asn Ile Val Arg Trp Phe Trp Gln Ala Val
625 630 635 640
Glu Thr Phe Asp Glu Glu Arg Arg Ala Arg Leu Leu Gln Phe Val Thr
645 650 655
Gly Ser Thr Arg Val Pro Leu Gln Gly Phe Lys Ala Leu Gln Gly Ser
660 665 670
Thr Gly Ala Ala Gly Pro Arg Leu Phe Thr Ile His Leu Ile Asp Ala
675 680 685
Asn Thr Asp Asn Leu Pro Lys Ala His Thr Cys Phe Asn Arg Ile Asp
690 695 700
Ile Pro Pro Tyr Glu Ser Tyr Glu Lys Leu Tyr Glu Lys Leu Leu Thr
705 710 715 720
Ala Val Glu Glu Thr Cys Gly Phe Ala Val Glu
725 730
<210> 3
<211> 2196
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 3
atgtcgaacc ccgggacacg caggaacggc tccagcatca agatccgtct gacagtgtta 60
tgtgccaaga accttgcaaa gaaagacttc ttcaggctcc ctgacccttt tgcaaagatt 120
gtcgtggatg ggtctgggca gtgccactca accgacactg tgaaaaacac attggaccca 180
aagtggaacc agcactatga tctatttgtt gggaaaacgg attcgataac cattagcgtg 240
tggaaccata agaaaattca caagaaacag ggagctggct tcctgggctg tgtgcggctg 300
ctctccaatg ccatcagcag attaaaagat accggatacc agcgtttgga tctatgcaaa 360
ctaaacccct cagatactga tgcagttcgt ggccagatag tggtcagttt acagacacga 420
gacagaatag gaaccggcgg ctcggtggtg gactgcagag gactgttaga aaatgaagga 480
acggtgtatg aagactccgg gcctgggagg ccgctcagct gcttcatgga ggaaccagcc 540
ccttacacag atagcaccgg tgctgctgct ggaggaggga attgcaggtt cgtggagtcc 600
ccaagtcaag atcaaagact tcaggcacag cggcttcgaa accctgatgt gcgaggttca 660
ctacagacgc cccagaaccg accacacggc caccagtccc cggaactgcc cgaaggctac 720
gaacaaagaa caacagtcca gggccaagtt tactttttgc atacacagac tggagttagc 780
acgtggcacg accccaggat accaagagac cttaacagtg tgaactgtga tgaacttgga 840
ccactgccgc caggctggga agtcagaagt acagtttctg ggaggatata ttttgtagat 900
cataataacc gaacaaccca gtttacagac ccaaggttac accacatcat gaatcaccag 960
tgccaactca aggagcccag ccagccgctg ccactgccca gtgagggctc tctggaggac 1020
gaggagcttc ctgcccagag atacgaaaga gatctagtcc agaagctgaa agtcctcaga 1080
cacgaactgt cgcttcagca gccccaagct ggtcattgcc gcatcgaagt gtccagagaa 1140
gaaatctttg aggagtctta ccgccagata atgaagatgc gaccgaaaga cttgaaaaaa 1200
cggctgatgg tgaaattccg tggggaagaa ggtttggatt acggtggtgt ggccagggag 1260
tggctttact tgctgtgcca tgaaatgctg aatccttatt acgggctctt ccagtattct 1320
acggacaata tttacatgtt gcaaataaat ccggattctt caatcaaccc cgaccacttg 1380
tcttatttcc actttgtggg gcggatcatg gggctggctg tgttccatgg acactacatc 1440
aacgggggct tcacagtgcc cttctacaag cagctgctgg ggaagcccat ccagctctca 1500
gatctggaat ctgtggaccc agagctgcat aagagcttgg tgtggatcct agagaacgac 1560
atcacgcctg tactggacca caccttctgc gtggaacaca acgccttcgg gcggatcctg 1620
cagcatgaac tgaaacccaa tggcagaaat gtgccagtca cagaggagaa taagaaagaa 1680
tacgtccggt tgtatgtaaa ctggaggttt atgagaggaa tcgaagccca gttcttagct 1740
ctgcagaagg ggttcaatga gctcatccct caacatctgc tgaagccttt tgaccagaag 1800
gaactggagc tgatcatagg cggcctggat aaaatagact tgaacgactg gaagtcgaac 1860
acgcggctga agcactgtgt ggccgacagc aacatcgtgc ggtggttctg gcaagcggtg 1920
gagacgttcg atgaagaaag gagggccagg ctcctgcagt ttgtgactgg gtccacgcga 1980
gtcccgctcc aaggcttcaa ggctttgcaa ggttctacag gcgcggcagg gccccggctg 2040
ttcaccatcc acctgataga cgcgaacaca gacaaccttc cgaaggccca tacctgcttt 2100
aaccggatcg acattccacc atatgagtcc tatgagaagc tctacgagaa gctgctgaca 2160
gccgtggagg agacctgcgg gtttgctgtg gagtga 2196
<210> 4
<211> 2196
<212> DNA
<213> Homo sapiens
<400> 4
atgtcgaacc ccgggacacg caggaacggc tccagcatca agatccgtct gacagtgtta 60
tgtgccaaga accttgcaaa gaaagacttc ttcaggctcc ctgacccttt tgcaaagatt 120
gtcgtggatg ggtctgggca gtgccactca accgacactg tgaaaaacac attggaccca 180
aagtggaacc agcactatga tctatatgtt gggaaaacgg attcgataac cattagcgtg 240
tggaaccata agaaaattca caagaaacag ggagctggct tcctgggctg tgtgcggctg 300
ctctccaatg ccatcagcag attaaaagat accggatacc agcgtttgga tctatgcaaa 360
ctaaacccct cagatactga tgcagttcgt ggccagatag tggtcagttt acagacacga 420
gacagaatag gaaccggcgg ctcggtggtg gactgcagag gactgttaga aaatgaagga 480
acggtgtatg aagactccgg gcctgggagg ccgctcagct gcttcatgga ggaaccagcc 540
ccttacacag atagcaccgg tgctgctgct ggaggaggga attgcaggtt cgtggagtcc 600
ccaagtcaag atcaaagact tcaggcacag cggcttcgaa accctgatgt gcgaggttca 660
ctacagacgc cccagaaccg accacacggc caccagtccc cggaactgcc cgaaggctac 720
gaacaaagaa caacagtcca gggccaagtt tactttttgc atacacagac tggagttagc 780
acgtggcacg accccaggat accaagagac cttaacagtg tgaactgtga tgaacttgga 840
ccactgccgc caggctggga agtcagaagt acagtttctg ggaggatata ttttgtagat 900
cataataacc gaacaaccca gtttacagac ccaaggttac accacatcat gaatcaccag 960
tgccaactca aggagcccag ccagccgctg ccactgccca gtgagggctc tctggaggac 1020
gaggagcttc ctgcccagag atacgaaaga gatctagtcc agaagctgaa agtcctcaga 1080
cacgaactgt cgcttcagca gccccaagct ggtcattgcc gcatcgaagt gtccagagaa 1140
gaaatctttg aggagtctta ccgccagata atgaagatgc gaccgaaaga cttgaaaaaa 1200
cggctgatgg tgaaattccg tggggaagaa ggtttggatt acggtggtgt ggccagggag 1260
tggctttact tgctgtgcca tgaaatgctg aatccttatt acgggctctt ccagtattct 1320
acggacaata tttacatgtt gcaaataaat ccggattctt caatcaaccc cgaccacttg 1380
tcttatttcc actttgtggg gcggatcatg gggctggctg tgttccatgg acactacatc 1440
aacgggggct tcacagtgcc cttctacaag cagctgctgg ggaagcccat ccagctctca 1500
gatctggaat ctgtggaccc agagctgcat aagagcttgg tgtggatcct agagaacgac 1560
atcacgcctg tactggacca caccttctgc gtggaacaca acgccttcgg gcggatcctg 1620
cagcatgaac tgaaacccaa tggcagaaat gtgccagtca cagaggagaa taagaaagaa 1680
tacgtccggt tgtatgtaaa ctggaggttt atgagaggaa tcgaagccca gttcttagct 1740
ctgcagaagg ggttcaatga gctcatccct caacatctgc tgaagccttt tgaccagaag 1800
gaactggagc tgatcatagg cggcctggat aaaatagact tgaacgactg gaagtcgaac 1860
acgcggctga agcactgtgt ggccgacagc aacatcgtgc ggtggttctg gcaagcggtg 1920
gagacgttcg atgaagaaag gagggccagg ctcctgcagt ttgtgactgg gtccacgcga 1980
gtcccgctcc aaggcttcaa ggctttgcaa ggttctacag gcgcggcagg gccccggctg 2040
ttcaccatcc acctgataga cgcgaacaca gacaaccttc cgaaggccca tacctgcttt 2100
aaccggatcg acattccacc atatgagtcc tatgagaagc tctacgagaa gctgctgaca 2160
gccgtggagg agacctgcgg gtttgctgtg gagtga 2196
<210> 5
<211> 27
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 5
cactatgatc tatttgttgg gaaaacg 27
<210> 6
<211> 21
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 6
ctggttccac tttgggtcca a 21
<210> 7
<211> 58
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 7
caccatggac tacaaggacg atgacgacaa gggttctgga ggctcgaacc ccgggaca 58
<210> 8
<211> 18
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 8
ctccacagca aacccgca 18
Claims (10)
1.泛素连接酶Smurf1突变体,其特征在于,该突变体由泛素连接酶Smurf1的第69位氨基酸替换为其他任意氨基酸得到,所述泛素连接酶Smurf1的氨基酸序列如SEQ ID No.1所示。
2.根据权利要求1所述的泛素连接酶Smurf1突变体,其特征在于,所述泛素连接酶Smurf1的第69位氨基酸由酪氨酸突变为苯丙氨酸,其氨基酸序列如SEQ ID No.2所示。
3.多核苷酸,编码权利要求1或2所述的泛素连接酶Smurf1突变体。
4.根据权利要求3所述的多核苷酸,其特征在于,该多核苷酸的碱基序列如SEQ IDNo.3所示。
5.一种重组载体,包含权利要求3所述的多核苷酸。
6.一种重组载体,包含权利要求4所述的多核苷酸。
7.一种重组宿主细胞,含有权利要求5或6所述的重组载体或表达权利要求1或2所述的泛素连接酶Smurf1突变体蛋白。
8.根据权利要求7所述的一种重组宿主细胞,其特征在于,所述宿主细胞为人胶质母细胞瘤细胞。
9.权利要求1或2所述的突变体或权利要求3或4所述的多核苷酸或权利要求5或权利要求6所述的重组载或权利要求7或权利要求8所述的重组宿主细胞体在制备治疗肿瘤相关药物上的应用。
10.根据权利要求9所述的应用,其特征在于,所述肿瘤为人胶质母细胞瘤。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910973872.9A CN110592032B (zh) | 2019-10-14 | 2019-10-14 | 泛素连接酶Smurf1突变体、编码基因及用途 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910973872.9A CN110592032B (zh) | 2019-10-14 | 2019-10-14 | 泛素连接酶Smurf1突变体、编码基因及用途 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110592032A true CN110592032A (zh) | 2019-12-20 |
CN110592032B CN110592032B (zh) | 2021-04-13 |
Family
ID=68867115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910973872.9A Active CN110592032B (zh) | 2019-10-14 | 2019-10-14 | 泛素连接酶Smurf1突变体、编码基因及用途 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110592032B (zh) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1409722A (zh) * | 1999-06-11 | 2003-04-09 | 纽约州州立大学研究基金会 | BMP和TGFβ信号转导途径的拮抗剂 |
WO2005024024A1 (en) * | 2003-09-10 | 2005-03-17 | Bionomics Limited | Mutations in the nedd4 gene family in epilepsy and other cns disorders |
CN1768139A (zh) * | 2003-02-10 | 2006-05-03 | 独立行政法人产业技术总合研究所 | 通过dna干扰调控基因的表达 |
CN103898116A (zh) * | 2014-04-08 | 2014-07-02 | 中国人民解放军军事医学科学院放射与辐射医学研究所 | Smurf1蛋白或其抑制剂在制备治疗或诊断结肠癌产品中的应用 |
CN104101714A (zh) * | 2014-07-15 | 2014-10-15 | 厦门大学 | 以抑制Smurf1泛素化降解RhoB为靶点的抗肿瘤药物筛选方法 |
CN104710515A (zh) * | 2013-12-17 | 2015-06-17 | 北京康乐卫士生物技术股份有限公司 | 人乳头瘤病毒l1蛋白突变体及其制备方法 |
CA2995838A1 (en) * | 2015-08-19 | 2017-02-23 | Rutgers, The State University Of New Jersey | Novel methods of generating antibodies |
-
2019
- 2019-10-14 CN CN201910973872.9A patent/CN110592032B/zh active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1409722A (zh) * | 1999-06-11 | 2003-04-09 | 纽约州州立大学研究基金会 | BMP和TGFβ信号转导途径的拮抗剂 |
CN100379752C (zh) * | 1999-06-11 | 2008-04-09 | 纽约州州立大学研究基金会 | BMP和TGFβ信号转导途径的拮抗剂 |
CN1768139A (zh) * | 2003-02-10 | 2006-05-03 | 独立行政法人产业技术总合研究所 | 通过dna干扰调控基因的表达 |
WO2005024024A1 (en) * | 2003-09-10 | 2005-03-17 | Bionomics Limited | Mutations in the nedd4 gene family in epilepsy and other cns disorders |
CN104710515A (zh) * | 2013-12-17 | 2015-06-17 | 北京康乐卫士生物技术股份有限公司 | 人乳头瘤病毒l1蛋白突变体及其制备方法 |
CN103898116A (zh) * | 2014-04-08 | 2014-07-02 | 中国人民解放军军事医学科学院放射与辐射医学研究所 | Smurf1蛋白或其抑制剂在制备治疗或诊断结肠癌产品中的应用 |
CN104101714A (zh) * | 2014-07-15 | 2014-10-15 | 厦门大学 | 以抑制Smurf1泛素化降解RhoB为靶点的抗肿瘤药物筛选方法 |
CA2995838A1 (en) * | 2015-08-19 | 2017-02-23 | Rutgers, The State University Of New Jersey | Novel methods of generating antibodies |
Non-Patent Citations (6)
Title |
---|
H LI ET AL.: "Smurf1 regulates lung cancer cell growth and migration through interaction with and ubiquitination of PIPKIγ", 《ONCOGENE》 * |
KEFENG LU ET AL.: "Pivotal Role of the C2 Domain of the Smurf1 Ubiquitin Ligase in Substrate Selection", 《JOURNAL OF BIOLOGICAL CHEMISTRY》 * |
MAUDHOO M.D ET AL.: "E3 ubiquitin-protein ligase,K7CMM4_PANTR", 《EMBL-EBI》 * |
XU S ET AL.: "E3 ubiquitin-protein ligase SMURF1 isoform 2 [Homo sapiens],NCBI Reference Sequence:NP_851994.1", 《GENBANK》 * |
李莉: "SMURF1蛋白在人胃癌组织中的表达及其临床意义", 《海南医学院学报》 * |
谢萍: "HECT类泛素连接酶Smurf1的Neddylation修饰研究", 《中国博士学位论文全文数据库 医药卫生科技辑》 * |
Also Published As
Publication number | Publication date |
---|---|
CN110592032B (zh) | 2021-04-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108715850B (zh) | 表皮干细胞中采用CRISPR-Cas系统进行GING2基因敲除 | |
Alberts et al. | Constitutive endothelin-1 overexpression promotes smooth muscle cell proliferation via an external autocrine loop | |
US11760977B2 (en) | Compositions and methods for organoid generation and disease modeling | |
Wang et al. | Long non-coding RNA UCA1a (CUDR) promotes proliferation and tumorigenesis of bladder cancer | |
KR20220162823A (ko) | Fgfr 억제제를 사용한 치료에 반응할 암 환자를 확인하는 데 있어서 fgfr 돌연변이 유전자 패널의 사용 | |
BR112021006885A2 (pt) | células, ilhotas e organoides que escapam da detecção de imunidade e autoimunidade, métodos de produção e uso dos mesmos | |
CN111154763B (zh) | 长链非编码RNA lncMGPF在调控猪肌肉发育功能中的应用 | |
CN111118013A (zh) | 白血病生物标志物linc02033及其应用 | |
Zhang et al. | Identification and chromosomal localization of CTNNAL1, a novel protein homologous to α-catenin | |
JP2017508445A (ja) | コドンが最適化されるmg53タンパク質のコードヌクレオチド配列、その組換え体及びその応用 | |
CN110592032B (zh) | 泛素连接酶Smurf1突变体、编码基因及用途 | |
JP2002540782A (ja) | ヒト間葉DNAsと発現産物 | |
CN114957399B (zh) | 一种多肽、多肽衍生物及其在制备抗肿瘤药物中的应用 | |
CN109112213A (zh) | 检测黏着斑激酶结构变异体的pcr引物及其检测方法与应用 | |
CN108893473B (zh) | 表皮干细胞中采用CRISPR-Cas系统进行Rab23基因敲除 | |
CN109320597B (zh) | 狐亚科激活素a蛋白及其制备与应用 | |
CN113227375A (zh) | 合成的微小rna模拟物 | |
CN114958856B (zh) | 长链非编码rna cyp1b1-as1作为乳腺癌生物标志物和治疗靶点的应用 | |
CN111358959B (zh) | Roquin1蛋白及其编码基因在制备抑制肿瘤的药物中的应用 | |
CN112921002B (zh) | 一种以人内源性tert蛋白为靶点筛选端粒酶调控剂的细胞模型及其制备方法和应用 | |
CN113750218B (zh) | 多肽zc3h12a及其突变体在制备抗肝癌药物中的应用 | |
CN115896112B (zh) | 靶向敲除人TMEM121基因的sgRNA,构建该基因缺失细胞株的方法及应用 | |
Shimokawa et al. | MafG-2 is a novel Maf protein that is expressed by stimulation of extracellular H+ | |
CN111574611B (zh) | 一种促进stat3活化的人源蛋白及其药物应用 | |
CN108410986B (zh) | Cdh6促进骨肉瘤生长和转移 |
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 |