流感病毒是一種Orthomyxoviridae的RNA病毒,會在全球引起呼吸系統疾病。由於流感病毒有較高的突變性,為了提高疫苗的保護效力,需要每年對流感疫苗中使用的毒株進行更新。世衛組織WHO在每年上、下半年會分別公佈下一季的北半球和南半球流感疫苗組合。
2022-2023年北半球季節性流感疫苗推薦組合:
an A/Victoria/2570/2019 (H1N1)pdm09-like virus;
an A/Darwin/9/2021 (H3N2)-like virus;
a B/Austria/1359417/2021 (B/Victoria lineage)-like virus;
a B/Phuket/3073/2013 (B/Yamagata lineage)-like virus.
an A/Wisconsin/588/2019 (H1N1)pdm09-like virus;
an A/Darwin/6/2021 (H3N2)-like virus;
a B/Austria/1359417/2021 (B/Victoria lineage)-like virus;
a B/Phuket/3073/2013 (B/Yamagata lineage)-like virus.
an A/Victoria/2570/2019 (H1N1)pdm09-like virus;
an A/Darwin/9/2021 (H3N2)-like virus;
a B/Austria/1359417/2021 (B/Victoria lineage)-like virus.
an A/Wisconsin/588/2019 (H1N1)pdm09-like virus
an A/Darwin/6/2021 (H3N2)-like virus
a B/Austria/1359417/2021 (B/Victoria lineage)-like virus.
推薦組合共涉及到6種流感疫苗株,透過與2021-2022北半球疫苗推薦組合對比,發現有三種疫苗株沒有變化,分別是:- an A/Victoria/2570/2019 (H1N1)pdm09-like virus
- an A/Wisconsin/588/2019 (H1N1)pdm09-like virus
- a B/Phuket/3073/2013 (B/Yamagata lineage)-like virus
|
A/Victoria/2570/ 2019 (H1N1) |
A/Wisconsin/588/ 2019 (H1N1) |
B/Phuket/3073 /2013 |
|
|
HA |
|||
|
NA |
|||
|
NP |
4月將推出(可直接下訂預訂)
|
A/Darwin/9/2021 (H3N2) |
B/Austria/1359417 /2021 |
A/Darwin/6/2021 (H3N2) |
|
|
HA |
40859-V08H 40859-V08B |
40862-V08H 40862-V08B |
40868-V08H 40868-V08B |
|
NA |
40860-V08B |
40863-V08B |
40869-V08B |
|
NP |
40858-V08B |
40861-V08B |
40858-V08B |

40498-V08B(Left): HA (B/Phuket/3073/2013), >95% as determined by SDS-PAGE
40502-V07B(Right): NA (B/Phuket/3073/2013), >90% as determined by SDS-PAGE
活性好
HA蛋白具有凝血活性
40502-V07B: NA(B/Phuket/3073/2013), Measured by its ability to cleave a fluorogenic substrate, 2'-(4-Methylumbelliferyl)-α-D-N-acetylneuraminic acid. The specific activity is 31358 pmoles/min/μg.
參考:https://en.wikipedia.org/wiki/Orthomyxoviridae
| 蛋白 | 功能 |
應用 |
| HA(凝血素) | 與宿主細胞膜上的唾液酸受體相結合,協助病毒包膜與宿主細胞膜相互融合;凝血作用 |
流感基礎研究 流感疫苗研發 抗血凝素抗體研發 病毒檢測試劑研究 |
| NA(神經氨酸酶) | 水解唾液酸受體,促進成熟病毒顆粒釋放 |
抗病毒藥物研發 流感基礎性研究 流感疫苗研發 抗體研發 病毒檢測試劑研究 |
| NP(核蛋白) | 與流感遺傳物質結合,參與病毒基因複製、轉錄、轉譯;維持病毒基因穩定性 |
抗病毒藥物研發 流感基礎性研究 抗體研發 診斷產品開發 |
如上應用中用到的重組NP蛋白(His tag):
|
貨號 |
流感病毒 |
| Influenza A H1N1 (A/California/07/2009) | |
| Influenza A H1N1 (A/Guangdong-Maonan/SWL1536/2019) | |
| Influenza A H1N1 (A/Hawaii/70/2019) | |
| Influenza A H3N2 (A/Hong Kong/2671/2019) | |
| Influenza A H3N2 (A/Hong Kong/45/2019) | |
| Influenza A H3N2 (A/Switzerland/9715293/2013) |
發表年份: 2021年
發表期刊: Nature Communications (IF=12.121)
產品及貨號: Influenza B (B/PHUKET/3073/2013) HA重组蛋白(Cat:40498-V08B)
應用: Antigen microarray
Design, synthesis and biological evaluation of "Multi-Site"-binding influenza virus neuraminidase inhibitors發表年份: 2019年
發表期刊: European Journal of Medicinal Chemistry (IF=5.572)
產品及貨號: Influenza B (B/PHUKET/3073/2013) NA重组蛋白(Cat:40502-V07B)
應用: In vitro neuraminidase enzyme inhibitory assay
Memory B Cell Activation, Broad Anti-influenza Antibodies, and Bystander Activation Revealed by Single-Cell Transcriptomics發表年份: 2020年
發表期刊: Cell Reports (IF=8.109)
產品及貨號: Influenza B (B/PHUKET/3073/2013) NA重组蛋白(Cat:40502-V07B)
應用: ELISA
Simulated Respiratory Secretion for Use in the Development of Influenza Diagnostic Assays發表年份: 2016年
發表期刊: PLoS One (IF=2.740)
產品及貨號: Influenza A H1N1 (A/California/07/2009) NP重组蛋白(Cat:40205-V08B)
應用: WB
Genomic Circuitry Underlying Immunological Response to Pediatric Acute Respiratory Infection發表年份: 2018年
發表期刊: Cell Reports (IF=8.109)
產品及貨號: Influenza A H1N1 (A/California/07/2009) NP重组蛋白(Cat:40205-V08B)
應用: ELISA
Development of a DNA aptamer selection method based on the heterogeneous sandwich form and its application in a colorimetric assay for influenza A virus detection發表年份: 2019年
發表期刊: New Journal of Chemistry (IF=3.288)
產品及貨號: Influenza A H1N1 (A/California/07/2009) NP重组蛋白(Cat:40205-V08B)
應用: Binding (aptamer)
Development of Replication Protein A-Conjugated Gold Nanoparticles for Highly Sensitive Detection of Disease Biomarkers發表年份: 2019年
發表期刊: Analytical Chemistry (IF=6.785)
產品及貨號: Influenza A H1N1 (A/California/07/2009) NP重组蛋白(Cat:40205-V08B)
應用: Binding (aptamer)
