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發表時(shí)間:2023-08-11 訪問次數:199

8月9日,中國疾病預防控制中心發布7月猴痘疫情監測情況——2023年7月1日至31日,中國内地(不含港澳台)23省(區(qū)、市)新增報(bào)告491例猴痘确診病例 。其中廣東報(bào)告115例、北京報(bào)告81例、四川報(bào)告49例、浙江報(bào)告40例、湖南報(bào)告33例、江蘇報(bào)告31例、上(shàng)海報(bào)告25例、安徽報(bào)告19例、天津報(bào)告17例、湖北報(bào)告17例、河(hé)南報(bào)告14例、遼甯報(bào)告12例、山東報(bào)告12例、吉林(lín)報(bào)告9例、雲南報(bào)告4例、陝西報(bào)告4例、福建報(bào)告2例、重慶報(bào)告2例、山西、内蒙古、廣西、貴州、青海各1例,無重症、死亡病例。

猴痘病毒

猴痘病毒(Mpox virus,MPXV)與天花(huā)病毒一樣,屬于正痘病毒屬。其形态與正痘病毒一緻, 外(wài)形爲圓角磚形或卵圓形,大(dà)小(xiǎo)爲200~400nm。磚形或卵圓狀,外(wài)被脂蛋白(bái)膜或封套,中間具有兩個含蛋白(bái)質的側體,有1個厚膜核心,核心内含很(hěn)大(dà)的雙鏈DNA基因體。M痘病毒的基因組爲雙鏈DNA,長約197kb,基因組末端包含一個相同但(dàn)方向相反的末端反向重複序列。該病毒包含190個開(kāi)放(fàng)閱讀框,其中4個位于末端反向重複序列中。猴痘病毒核心蛋白(bái)爲A29L, A35R, B6R, M1R, H3L

法國ProteoGenix頂級科學團隊專注于抗體藥物開(kāi)發,旗下(xià)科研試劑品牌AntibodySystem專注于蛋白(bái)和(hé)抗體試劑研究,團隊對(duì)猴痘病毒(Mpox virus,Mpox)和(hé)痘苗病毒(vaccinia virus,VACV)的基因序列進行深度探索并成功設計(jì)開(kāi)發真核系統表達的猴痘病毒(Mpox virus,Mpox)系列核心蛋白(bái)A29L、A35R、B6R、M1R、E8L以及相關具有生物學活性的中和(hé)抗體産品,助力疫苗、藥物、診斷試劑等不同方向的研究。

  真核表達猴痘核心蛋白(bái)及相關中和(hé)抗體

Monkeypox virus/MPXV A29L

A29L是細胞内成熟病毒(IMV)表面包膜蛋白(bái)(與牛痘病毒VACV,A27同源)。溶瘤痘苗病毒(VV)屬于痘病毒科中一擁有192kb雙螺旋DNA遺傳物質的病毒,會(huì)在細胞質中繁殖出具有鞘膜的病毒,進而感染其他(tā)不同種的哺乳動物細胞及個體.VV中的A27L基因能(néng)表達出一14kDa大(dà)小(xiǎo)的鞘膜蛋白(bái),此蛋白(bái)能(néng)與細胞表面上(shàng)的硫酸乙酰肝素(Heparan Sulfate)作(zuò)用(yòng)使病毒跟細胞結合并且可催化細胞融合。

·Monkeypox virus/MPXV A29L 

Catalog No:EVV13401

Name:Recombinant Monkeypox virus/MPXV A29L Protein, C-His

Predicted molecular weight:15.33 kDa  

Expression system: Mammalian

Protein length: Asp2-Glu110

Protein length: Asp2-Glu110

 

SDS PAGE Purity:90% 

SDS PAGE for Recombinant Monkeypox virus/MPXV A29L Protein

·Anti-Monkeypox virus/MPXV A29L Antibody

Catalog No:RVV13401

Name:Anti-Monkeypox virus/MPXV A29L Antibody (SAA0286)

Host species:Mouse

Applications:ELISA,Neut

Species reactivity:MPXV

Stock:In stock

 
Detects Monkeypox virus/MPXV A29L in direct ELISAs

 

Monkeypox virus/MPXV  A35R

A35R是細胞内包膜病毒粒子(IEV)和(hé)細胞外(wài)包膜病毒粒子(EEV)的包膜成分,與脊索痘病毒A33R同源。痘苗病毒中的A33R在病毒粒子在細胞間的傳播中起着至關重要的作(zuò)用(yòng),是疫苗開(kāi)發的重要靶點,也(yě)有研究表明(míng)A35R是猴痘病毒(Monkeypox virus,MPXV)血清學檢測的潛在靶點。

·Recombinant Monkeypox virus/MPXV A35R Protein 

Catalog No:EVV13101

Name:Recombinant Monkeypox virus/MPXV A35R Protein, C-His

Predicted molecular weight:16.65 kDa 

Expression system: Mammalian

Protein length: Val57-Thr181

Stock:In stock

 

SDS PAGE Purity:90%

SDS PAGE for Recombinant Monkeypox virus/MPXV A35R Protein

·Anti-Monkeypox virus/MPXV A35R Antibody (SAA0287)

Catalog No:RVV13101

Name:Anti-Monkeypox virus/MPXV A35R Antibody (SAA0287)

Host species:Mouse

Applications:ELISA,Neut

Species reactivity:MPXV

Stock:In stock

 

Detects Monkeypox virus/MPXV A35R in direct ELISAs.

Monkeypox virus/MPXV  B6R

 

B6R是宿主範圍蛋白(bái),位于細胞外(wài)包膜病毒粒子(EEV)的膜上(shàng),與牛痘病毒補體控制蛋白(bái)B5同源,參與補體激活的負調節。研究表明(míng)B5依賴于與A33或A34的相互作(zuò)用(yòng),以定位到(dào)細胞内包膜的位點,并能(néng)相互結合釋放(fàng)到(dào)細胞外(wài)病毒體的包膜中。B5對(duì)于有效生産感染性EV至關重要,A33,A34,B5三者複合物在ER退出以及三種糖蛋白(bái)正确定位到(dào)包裹的細胞内部位中起作(zuò)用(yòng)。

·Recombinant Monkeypox virus/MPXV B6R/SL-159 Protein

Catalog No:EVV13501

Name:Recombinant Monkeypox virus/MPXV B6R/SL-159 Protein, C-His

Predicted molecular weight:31.73 kDa

Expression system: Mammalian

Protein length: Thr20-His279

Stock:In stock

 

SDS PAGE Purity:90%

SDS PAGE for Recombinant Monkeypox virus/MPXV B6R/SL-159 Protein

Monkeypox virus/MPXV  M1R

 

M1R與牛痘病毒L1蛋白(bái)同源,是一種在成熟IMV顆粒表面發現(xiàn)的跨膜蛋白(bái)。由L1R ORF編碼,高(gāo)度保守,參與病毒粒子組裝,在病毒進入和(hé)成熟過程中發揮重要作(zuò)用(yòng)。L1是誘導低(dī)pH觸發的細胞-細胞融合所必需的,且對(duì)牛痘病毒複制至關重要。

·Recombinant Monkeypox virus/MPXV M1R Protein 

Catalog No:EVV13301

Name:Recombinant Monkeypox virus/MPXV M1R Protein, C-His

Predicted molecular weight:22.35 kDa 

Expression system: Mammalian

Protein length: Gly2-Gly183

Stock:In stock

 

SDS PAGE Purity:90%

SDS PAGE for Recombinant Monkeypox virus/MPXV M1R Protein

·Anti-Monkeypox virus/MPXV M1R Antibody

Catalog No:RVV13301

Name:Anti-Monkeypox virus/MPXV M1R Antibody (SAA0283)

Host species:Mouse

Applications:ELISA,Neut

Species reactivity:MPXV

Stock:In stock

 

Detects Monkeypox virus/MPXV M1R in direct ELISAs.

 

Monkeypox virus/MPXV  E8L

E8L是病毒入侵宿主細胞重要基因,在病毒入侵宿主完成複制的過程中作(zuò)爲MV的細胞表面結合蛋白(bái)與細胞表面的硫酸軟骨素結合,以提供病毒粒子附着在靶細胞上(shàng)。有研究表明(míng)利用(yòng)siRNA技術能(néng)有效拮抗Monkeypox virus的A6R和(hé)E8L基因,由此構建siA6-a和(hé)si8 -d能(néng)破壞MPV複制。

·Recombinant Monkeypox virus/MPXV E8L Protein

Catalog No:EVV13201

Name:Recombinant Monkeypox virus/MPXV E8L Protein, C-His

Predicted molecular weight:22.35 kDa 

Expression system: Mammalian

Protein length: Gly2-Gly183

Stock:In stock

 

SDS PAGE Purity:90%

SDS PAGE for Recombinant Monkeypox virus/MPXV E8L Protein

·Anti-Monkeypox virus/MPXV E8L Antibody

Catalog No:RVV13201

Name:Anti-Monkeypox virus/MPXV E8L Antibody (SAA0285)

Host species:Mouse

Applications:ELISA,Neut

Species reactivity:MPXV

Stock:In stock

 

Detects Monkeypox virus/MPXV E8L in direct ELISAs.

Monkeypox virus/MPXV  H3L

H3L是一種324個AA長的糖基轉移酶,位于病毒包膜上(shàng),在與宿主細胞的附着和(hé)随後的痘病毒進入中起關鍵作(zuò)用(yòng)。研究表明(míng),天花(huā)疫苗誘導的抗體與H3蛋白(bái)結合,分化簇 (CD8)+ T細胞将H3L識别爲抗原,表明(míng)其免疫學意義。

·Recombinant Monkeypox virus/MPXV H3L Protein

Catalog No:EVV12701

Name:Recombinant Monkeypox virus/MPXV H3L Protein, C-His

Predicted molecular weight:35.46 kDa

Expression system: Mammalian

Protein length: Ala2-Phe282

Stock:In stock

 

SDS PAGE Purity:90%

SDS PAGE for Recombinant Monkeypox virus/MPXV H3L Protein

随着研究的深入,AntibodySystem還研發了(le)一系列對(duì)猴痘病毒(Monkeypox virus,MPXV )相關檢測試劑盒産品。

猴痘病毒(Monkeypox virus/MPXV )抗原檢測試劑盒

Cat. #

Product name

KVV13401

Monkeypox Virus (MPXV) A29L Antigen ELISA Kit

KVV13301

Monkeypox Virus (MPXV) M1R Antigen ELISA Kit

KVV12701

Monkeypox Virus (MPXV) H3L Antigen ELISA Kit

KVV13201

Monkeypox Virus (MPXV) E8L Antigen ELISA Kit

KVV13101

Monkeypox Virus (MPXV) A35R Antigen ELISA Kit

猴痘病毒(Monkeypox virus/MPXV )抗體檢測試劑盒

 

Cat. #

Product name

KAV13401

Human Anti-Monkeypox Virus (MPXV) IgG ELISA Kit (A29L)

KAV13301

Human Anti-Monkeypox Virus (MPXV) IgG ELISA Kit(M1R)

KAV12701

Human Anti-Monkeypox Virus (MPXV) IgG ELISA Kit(H3L)

KAV13201

Human Anti-Monkeypox Virus (MPXV) IgG ELISA Kit(E8L)

KAV13101

Human Anti-Monkeypox Virus (MPXV) IgG ELISA Kit(A35R)

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參考文(wén)獻:

[1]Subunit recombinant vaccine protects against monkeypox. J Immunol. 2006 Aug 15;177(4):2552-64. doi: 10.4049/jimmunol.177.4.2552. PMID: 16888017.

[2]Outbreak of human monkeypox in Nigeria in 2017-18: a clinical and epidemiological report. Lancet Infect Dis. 2019 Aug;19(8):872-879. doi: 10.1016/S1473-3099(19)30294-4. Epub 2019 Jul 5. PMID: 31285143.

[3]A Nucleic Acid-Based Orthopoxvirus Vaccine Targeting the Vaccinia Virus L1, A27, B5, and A33 Proteins Protects Rabbits against Lethal Rabbitpox Virus Aerosol Challenge. J Virol. 2022 Feb 9;96(3):e0150421. doi: 10.1128/JVI.01504-21. Epub 2021 Dec 1. PMID: 34851148; PMCID: PMC8826804.

[4]Mapping and functional analysis of interaction sites within the cytoplasmic domains of the vaccinia virus A33R and A36R envelope proteins. J Virol. 2003 Apr;77(7):4113-26. doi: 10.1128/jvi.77.7.4113-4126.2003. PMID: 12634370; PMCID: PMC150634.

[5]Vaccinia virus induces cell fusion at acid pH and this activity is mediated by the N-terminus of the 14-kDa virus envelope protein. Virology. 1990 Sep;178(1):81-91. doi: 10.1016/0042-6822(90)90381-z. PMID: 2389560.

[6]Molecular Evidence of Human Monkeypox Virus Infection, Sierra Leone. Emerg Infect Dis. 2019 Jun;25(6):1220-1222. doi: 10.3201/eid2506.180296. Epub 2019 Jun 17. PMID: 30900976; PMCID: PMC6537715.

[7]Inhibition of monkeypox virus replication by RNA interference. Virol J. 2009 Nov 4;6:188. doi: 10.1186/1743-422X-6-188. PMID: 19889227; PMCID: PMC2777875.

[8]Rapid protection in a monkeypox model by a single injection of a replication-deficient vaccinia virus. Proc Natl Acad Sci U S A. 2008 Aug 5;105(31):10889-94. doi: 10.1073/pnas.0804985105. Epub 2008 Aug 4. PMID: 18678911; PMCID: PMC2495015.