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AB128193

Anti-Influenza A Virus Nucleoprotein antibody [C43]

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(63 Publications)

Anti-Influenza A Virus Nucleoprotein antibody [C43] (ab128193) is a mouse monoclonal antibody detecting Influenza A Virus Nucleoprotein in Western Blot, Flow Cytometry, ICC/IF, ELISA. Suitable for Influenza A.

- Over 40 publications

View Alternative Names

Nucleoprotein, Nucleocapsid protein, Protein N, NP

4 Images
Immunocytochemistry/ Immunofluorescence - Anti-Influenza A Virus Nucleoprotein antibody [C43] (AB128193)
  • ICC/IF

Unknown

Immunocytochemistry/ Immunofluorescence - Anti-Influenza A Virus Nucleoprotein antibody [C43] (AB128193)

Immunofluorescence assay of MDCK cells derived from canine kidney cells, and A549 cells derived from human lung carcinoma cells, that were infected with H1N1 influenza virus (A/PuertoRico/8/34). Samples were taken at 3, 9, and 24 hours post-infection. Influenza A Virus Nucleoprotein antibody (ab128193) efficiently detected virus-infected MDCK and A549 cells as early as 3 h after infection. The cells were fixed with 4% paraformaldehyde in phosphate-buffered saline (PBS) and permeabilized with 0.1% 0.1% Triton X-100 in PBS. The bound antibody was visualized by a further reaction with an green flurescent secondary antibody.

Immunocytochemistry/ Immunofluorescence - Anti-Influenza A Virus Nucleoprotein antibody [C43] (AB128193)
  • ICC/IF

Unknown

Immunocytochemistry/ Immunofluorescence - Anti-Influenza A Virus Nucleoprotein antibody [C43] (AB128193)

Immunofluorescence assay of 293T cells expressing HA or NP of pandemic (H1N1) 2009 influenza A virus (A/Suita/1/2009). Influenza A Virus Nucleoprotein antibody (ab128193) specifically recognized NP-expressing cells while a proprietary mouse anti-HA monoclonal antibody specifically recognized HA.

Western blot - Anti-Influenza A Virus Nucleoprotein antibody [C43] (AB128193)
  • WB

Unknown

Western blot - Anti-Influenza A Virus Nucleoprotein antibody [C43] (AB128193)

Tubulin was used as loading control.

All lanes:

Western blot - Anti-Influenza A Virus Nucleoprotein antibody [C43] (ab128193) at 1/300 dilution

Lanes 1, 6 and 11:

MDCK cells mock infected

Lane 2:

MDCK cells infected with H1N1 (A/PuertoRico/8/34) collected 3 hrs post-infection

Lane 3:

MDCK cells infected with H1N1 (A/PuertoRico/8/34) collected 9 hrs post-infection

Lane 4:

MDCK cells infected with H1N1 (A/PuertoRico/8/34) collected 24 hrs post-infection

Lane 5:

MDCK cells infected with H1N1 (A/PuertoRico/8/34) collected 48 hrs post-infection

Lane 7:

MDCK cells infected with H5N2 (A/crow/Kyoto/53/04) collected 3 hrs post-infection

Lane 8:

MDCK cells infected with H5N2 (A/crow/Kyoto/53/04) collected 9 hrs post-infection

Lane 9:

MDCK cells infected with H5N2 (A/crow/Kyoto/53/04) collected 24 hrs post-infection

Lane 10:

MDCK cells infected with H5N2 (A/crow/Kyoto/53/04) collected 48 hrs post-infection

Lane 12:

MDCK cells infected H5N1 (A/duck/HK/342/78)collected 3 hrs post-infection

Lane 13:

MDCK cells infected with H5N1 (A/duck/HK/342/78) collected 9 hrs post-infection

Lane 14:

MDCK cells infected with H5N1 (A/duck/HK/342/78) collected 24 hrs post-infection

Lane 15:

MDCK cells infected with H5N1 (A/duck/HK/342/78) collected 48 hrs post-infection

Predicted band size: 56 kDa

false

Western blot - Anti-Influenza A Virus Nucleoprotein antibody [C43] (AB128193)
  • WB

Supplier Data

Western blot - Anti-Influenza A Virus Nucleoprotein antibody [C43] (AB128193)

All lanes:

Western blot - Anti-Influenza A Virus Nucleoprotein antibody [C43] (ab128193) at 1/1000 dilution

All lanes:

MDCK cells infected with Influenza A virus (H1N1) PuertoRico/8/34

Secondary

All lanes:

Western blot - Rabbit Anti-Mouse IgG H&L (HRP) (<a href='/en-us/products/secondary-antibodies/rabbit-mouse-igg-h-l-hrp-ab97046'>ab97046</a>) at 1/10000 dilution

Predicted band size: 56 kDa

false

  • HRP

    HRP Anti-Influenza A Virus Nucleoprotein antibody [C43]

Key facts

Host species

Mouse

Clonality

Monoclonal

Clone number

C43

Isotype

IgG2a

Carrier free

No

Reacts with

Influenza A

Applications

Flow Cyt, ELISA, WB, ICC/IF

applications

Immunogen

Virus preparation containing NP protein. The exact immunogen used to generate this antibody is proprietary information.

P69291

Specificity

Reacts with NP of all influenza A viruses so far tested, including seasonal H2N2, H3N2(A/Sydney/5/1997), and H5N1(A/crow/Kyoto53/2004), H5N1 (A/duck/Egypt/D2br10/07), H5N1(A/duck/HK/342/78), H5N2(A/crow/Kyoto/53/04), H9N1, H9N2 (A/Turkey/Wisconsin/1/66) and H1N1 (seasonal: A/New Caledonia/20/99. Pandemic: A/Suita/01/2009 and swine: A/PuertoRico/8/34).

No cross reactivity with influenza B viruses.

Reactivity data

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Product details

Product Specifications

Anti-Influenza A Virus Nucleoprotein antibody [C43] (ab128193) is a mouse monoclonal antibody and is validated for use in ELISA, Flow Cyt, ICC/IF, WB in influenza a samples.
Anti-Influenza A Virus Nucleoprotein antibody [C43] (ab128193) specifically detects Influenza A Virus Nucleoprotein (UniProt ID: P69291; Molecular weight: 56kDa) and is sold in 100 µg selling sizes.

Quality and Validation

Abcam's high quality validation processes ensure Anti-Influenza A Virus Nucleoprotein antibody [C43] (ab128193) has high sensitivity and specificity.
Anti-Influenza A Virus Nucleoprotein antibody [C43] (ab128193) has been cited over 42 times in peer reviewed journals and is trusted by the scientific community.


Related Products

Antibody clone C43 is also available pre-conjugated to a variety of labels for your convenience - HRP (ab176837).

Properties and storage information

Form
Liquid
Purification technique
Proprietary technique
Purification notes
Produced in serum-free medium and purified by proprietary chromatography procedure under mild conditions. 90~95% pure by SDS-PAGE
Storage buffer
pH: 6 - 8.5 Constituents: PBS, 50% Glycerol (glycerin, glycerine)
Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Storage information
Avoid freeze / thaw cycle

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

The Influenza A Virus Nucleoprotein also known as NP or nucleoprotein influenza A plays a significant mechanical role in the virus life cycle. It is an essential structural component that encapsidates viral RNA forming ribonucleoprotein complexes important for replication and transcription. Influenza A nucleoprotein has a molecular weight of approximately 56 kDa and is expressed in infected host cells. Within the influenza virion the nucleoprotein interacts with the viral RNA and polymerase complex ensuring the integrity and functionality of the viral genome.
Biological function summary

The influenza A nucleoprotein is involved in regulating viral RNA synthesis and acts as a platform for the assembly of viral components. It does not directly form stable complexes with host proteins but it is central to the ribonucleoprotein complexes that are vital for the virus life cycle. This nucleoprotein assists in the virus's ability to hijack the host cellular machinery favoring its replication and infection processes. While the nucleoprotein itself does not form direct complexes with host proteins its interactions are significant for facilitating various stages of the viral life cycle.

Pathways

The influenza A nucleoprotein operates within the viral replication and transcription pathways. It associates with proteins such as PB1 PB2 and PA of the polymerase complex which is important for viral RNA synthesis. The nucleoprotein ensures the proper packaging of the viral genome to be recognized by the polymerase complex playing a pivotal role in the viral replication process. Through these pathways it indirectly impacts the host immune response as the virus must evade host defenses to ensure replication success.

The nucleoprotein influenza A is primarily linked to influenza infections a major respiratory illness. Influenza can manifest in a mild to severe form occasionally leading to pandemics. The nucleoprotein is an attractive target for antiviral drug development given its essential role in the viral life cycle. Moreover studies have shown that variations and mutations in the nucleoprotein can affect viral virulence and the outcome of infection. By understanding its mechanisms and interactions with other viral proteins like HA and NA researchers can better develop strategies to combat influenza outbreaks.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

Encapsidates the negative strand viral RNA, protecting it from nucleases. The encapsidated genomic RNA is termed the ribonucleoprotein (RNP) and serves as template for transcription and replication. The RNP needs to be localized in the host nucleus to start an infectious cycle, but is too large to diffuse through the nuclear pore complex. NP comprises at least 2 nuclear localization signals that are responsible for the active RNP import into the nucleus through cellular importin alpha/beta pathway. Later in the infection, nclear export of RNPs are mediated through viral proteins NEP interacting with M1 which binds nucleoproteins. It is possible that nucleoprotein binds directly host exportin-1/XPO1 and plays an active role in RNPs nuclear export. M1 interaction with RNP seems to hide nucleoprotein's nuclear localization signals. Soon after a virion infects a new cell, M1 dissociates from the RNP under acidification of the virion driven by M2 protein. Dissociation of M1 from RNP unmasks nucleoprotein's nuclear localization signals, targeting the RNP to the nucleus.
See full target information NP

Additional targets

Influenza A Virus Nucleoprotein

Publications (63)

Recent publications for all applications. Explore the full list and refine your search

BMC microbiology 25:292 PubMed40375181

2025

Taurultam shows antiviral activity against SARS-CoV-2 and influenza virus.

Applications

Unspecified application

Species

Unspecified reactive species

Rongbo Luo,Beilei Shen,Bingshuo Qian,Lingjun Fan,Junkui Zhang,Xiuwen Deng,Yan Sun,Shijun Zhang,Tiecheng Wang,Yuanguo Li,Weiyang Sun,Xiaobin Pang,Wu Zhong,Yuwei Gao

International journal of molecular sciences 26: PubMed40362373

2025

Hypercapnia Increases Influenza A Virus Infection of Bronchial Epithelial Cells by Augmenting Cellular Cholesterol via mTOR and Akt.

Applications

Unspecified application

Species

Unspecified reactive species

Fei Chen,Aiko Matsuda,Peter H S Sporn,S Marina Casalino-Matsuda

Virology journal 22:131 PubMed40320528

2025

Intranasally administered whole virion inactivated vaccine against clade 2.3.4.4b H5N1 influenza virus with optimized antigen and increased cross-protection.

Applications

Unspecified application

Species

Unspecified reactive species

Jin-Ha Song,Seung-Eun Son,Ho-Won Kim,Seung-Ji Kim,Se-Hee An,Chung-Young Lee,Hyuk-Joon Kwon,Kang-Seuk Choi

Virology journal 22:126 PubMed40296172

2025

EIDD-2801 resists to infection and co-infection of SARS-CoV-2 and influenza virus.

Applications

Unspecified application

Species

Unspecified reactive species

Bingshuo Qian,Rongbo Luo,Beilei Shen,Lingjun Fan,Junkui Zhang,Shijun Zhang,Yan Sun,Xiuwen Deng,Xiaobin Pang,Wu Zhong,Yuwei Gao

Journal of virology 99:e0013325 PubMed40145735

2025

Restriction of influenza A virus replication by host DCAF7-CRL4B axis.

Applications

Unspecified application

Species

Unspecified reactive species

Lei Yu,Yong Jiang,Hongyu Rang,Xueyun Wang,Yumeng Cai,Haojie Yan,Shuwen Wu,Ke Lan

Cell reports 44:115196 PubMed39817904

2025

Probing the functional constraints of influenza A virus NEP by deep mutational scanning.

Applications

Unspecified application

Species

Unspecified reactive species

Qi Wen Teo,Yiquan Wang,Huibin Lv,Michael S Oade,Kevin J Mao,Timothy J C Tan,Yang Wei Huan,Joel Rivera-Cardona,Evan K Shao,Danbi Choi,Chaoyang Wang,Zahra Tavakoli Dargani,Christopher B Brooke,Aartjan J W Te Velthuis,Nicholas C Wu

PLoS pathogens 21:e1012854 PubMed39777915

2025

An interferon-stimulated long non-coding RNA USP30-AS1 as an immune modulator in influenza A virus infection.

Applications

Unspecified application

Species

Unspecified reactive species

Yi Cao,Alex W H Chin,Haogao Gu,Mengting Li,Yuner Gu,Sylvia P N Lau,Kenrie P Y Hui,Michael C W Chan,Leo L M Poon

PLoS pathogens 20:e1012508 PubMed39303003

2024

A chimeric mRNA vaccine of S-RBD with HA conferring broad protection against influenza and COVID-19 variants.

Applications

Unspecified application

Species

Unspecified reactive species

Tianjiao Hao,Yulei Li,Peipei Liu,Xi Wang,Ke Xu,Wenwen Lei,Ying Li,Rong Zhang,Xiaoyan Li,Xin Zhao,Kun Xu,Xuancheng Lu,Yuhai Bi,Hao Song,Guizhen Wu,Baoli Zhu,George F Gao

Nature communications 15:5800 PubMed38987276

2024

Enhancing cross-protection against influenza by heterologous sequential immunization with mRNA LNP and protein nanoparticle vaccines.

Applications

Unspecified application

Species

Unspecified reactive species

Chunhong Dong,Wandi Zhu,Lai Wei,Joo Kyung Kim,Yao Ma,Sang-Moo Kang,Bao-Zhong Wang

Journal of medical virology 96:e29768 PubMed38978388

2024

Vagal-α7 nicotinic acetylcholine receptor signaling exacerbates influenza severity by promoting lung epithelial cell infection.

Applications

Unspecified application

Species

Unspecified reactive species

Caiqi Zhao,Mengyao Pan,Jie Chen,Ling Li,Yan Zhang,Wenjun Liu,Michael A Matthay,Haichao Wang,Xia Jin,Jin-Fu Xu,Xiao Su
View all publications

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