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AB108596

Anti-JAK2 antibody [EPR108(2)]

  • 20ul selling size
  • RabMAb
  • Recombinant
  • KO Validated
  • What is this?

4

(3 Reviews)

|

(263 Publications)

Anti-JAK2 antibody [EPR108(2)] (ab108596) is a rabbit monoclonal antibody detecting JAK2 in Western Blot, IP, ICC/IF. Suitable for Human, Mouse, Rat.

- KO validated for confirmed specificity
- Biophysical QC for unrivalled batch-batch consistency
- Over 160 publications

View Alternative Names

Tyrosine-protein kinase JAK2, Janus kinase 2, JAK-2, JAK2

7 Images
Immunocytochemistry/ Immunofluorescence - Anti-JAK2 antibody [EPR108(2)] (AB108596)
  • ICC/IF

Lab

Immunocytochemistry/ Immunofluorescence - Anti-JAK2 antibody [EPR108(2)] (AB108596)

Immunocytochemistry/Immunofluorescence analysis of Ramos (Human Burkitt's lymphoma) cells labelling JAK2 with unpurified 108596 at 1/300 (7.0 μg/mL). Cells were fixed with 4% Paraformaldehyde and permeabilized with 0.1% Triton X-100. ab150077, Alexa Fluor® 488-conjugated goat anti-rabbit IgG (1/1000, 2 μg/mL) was used as the secondary antibody. Nuclei were stained with DAPI (blue).

Confocal image showing nuclear and cytoplasmic staining on Ramos cell line.

Immunocytochemistry/ Immunofluorescence - Anti-JAK2 antibody [EPR108(2)] (AB108596)
  • ICC/IF

Lab

Immunocytochemistry/ Immunofluorescence - Anti-JAK2 antibody [EPR108(2)] (AB108596)

Immunocytochemistry/ Immunofluorescence analysis of K562 (Human chronic myelogenous leukemia cell line from bone marrow) cells labeling JAK2 with purified ab108596 at 1/150 dilution (8.5μg/ml). Cells were fixed with 4% paraformaldehyde and permeabilized with 0.1% Triton X-100. ab150077, a goat anti-rabbit IgG(Alexa Fluor® 488) was used as the secondary antibody at 1/1000 dilution. ab195889, anti-alpha Tubulin antibody [DM1A] - Microtubule Marker (Alexa Fluor® 594) was used as the counter stain at 1/200 (2.5 μg/ml). PBS instead of the primary antibody was the negative control. DAPI was used as a nuclear counterstain.

Immunocytochemistry/ Immunofluorescence - Anti-JAK2 antibody [EPR108(2)] (AB108596)
  • ICC/IF

Lab

Immunocytochemistry/ Immunofluorescence - Anti-JAK2 antibody [EPR108(2)] (AB108596)

Immunocytochemistry/Immunofluorescence analysis of Jurkat (Human T cell leukemia cells from peripheral blood) cells labelling JAK2 with unpurified ab108596 at 1/300 (7.0 μg/mL). Cells were fixed with 4% Paraformaldehydeand permeabilized with 0.1% Triton X-100. ab150077, Alexa Fluor® 488-conjugated goat anti-rabbit IgG (1/1000, 2 μg/mL) was used as the secondary antibody. Nuclei were stained with DAPI (blue).

Confocal image showing nuclear and cytoplasmic staining on Jurkat cell line.

Immunoprecipitation - Anti-JAK2 antibody [EPR108(2)] (AB108596)
  • IP

Lab

Immunoprecipitation - Anti-JAK2 antibody [EPR108(2)] (AB108596)

ab108596 at 1/80 dilution (20 μg/mL) immunoprecipitating JAK2 in K562 (Human chronic myelogenous leukemia lymphoblast) cell lysate.

Lane 1 (input) : K562(Human chronic myelogenous leukemia lymphoblast) whole cell lysate 10μg

Lane 2 (+) : K562 whole cell lysate, 350μg + ab108596, 2μg

Lane 3 (-) : K562 cell lysate, 350μg + rabbit IgG (ab172730), 2μg

For western blotting, ab108596 at 1/500 dilution (3.0 μg/mL) and ab131366 VeriBlot for IP (HRP) was used at 1/1000.

Blocking and dilution buffer : 5% NFDM/TBST.

All lanes:

Immunoprecipitation - Anti-JAK2 antibody [EPR108(2)] (ab108596)

Predicted band size: 131 kDa

Observed band size: 130 kDa

false

Western blot - Anti-JAK2 antibody [EPR108(2)] (AB108596)
  • WB

Lab

Western blot - Anti-JAK2 antibody [EPR108(2)] (AB108596)

Lanes 1- 4 : Merged signal (red and green). Green - ab108596 observed at 131 kDa. Red - Anti-GAPDH antibody [6C5] - Loading Control (ab8245) observed at 37 kDa.

ab108596 was shown to react with JAK2 in wild-type A549 cells in western blot. Loss of signal was observed when knockout cell line ab267113 (knockout cell lysate ab256963) was used. Wild-type A549 and JAK2 knockout A549 cell lysates were subjected to SDS-PAGE. Membrane was blocked for 1 hour at room temperature in 0.1% TBST with 3% non-fat dried milk. ab108596 and Anti-GAPDH antibody [6C5] - Loading Control (ab8245) overnight at 4°C at a 1 in 1000 dilution and a 1 in 20000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye®800CW) preadsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye®680RD) preadsorbed (ab216776) secondary antibodies at 1 in 20000 dilution for 1 hour at room temperature before imaging.

All lanes:

Western blot - Anti-JAK2 antibody [EPR108(2)] (ab108596) at 1/1000 dilution

Lane 1:

Wild-type A549 cell lysate at 20 µg

Lane 2:

JAK2 knockout A549 cell lysate at 20 µg

Lane 2:

Western blot - Human JAK2 knockout A549 cell line (<a href='/en-us/products/cell-lines/human-jak2-knockout-a549-cell-line-ab267113'>ab267113</a>)

Lane 3:

K562 cell lysate at 20 µg

Lane 4:

Daudi cell lysate at 20 µg

Predicted band size: 131 kDa

Observed band size: 131 kDa

false

Western blot - Anti-JAK2 antibody [EPR108(2)] (AB108596)
  • WB

Lab

Western blot - Anti-JAK2 antibody [EPR108(2)] (AB108596)

Blocking and diluting buffer and concentration : 5% NFDM/TBST.

All lanes:

Western blot - Anti-JAK2 antibody [EPR108(2)] (ab108596) at 1/5000 dilution

Lane 1:

TF-1 (Human bone marrow erythroleukemia cell line) whole cell lysate at 20 µg

Lane 2:

K562 (Human chronic myelogenous leukemia cell line from bone marrow) whole cell lysate at 20 µg

Lane 3:

C6 (Rat glial tumour cell line) whole cell lysate at 20 µg

Lane 4:

NIH/3T3 (Mouse embryonic fibroblast cell line) whole cell lysate at 20 µg

Secondary

All lanes:

Western blot - Goat Anti-Rabbit IgG H&L (HRP) (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/20000 dilution

Predicted band size: 131 kDa

Observed band size: 130 kDa

false

Western blot - Anti-JAK2 antibody [EPR108(2)] (AB108596)
  • WB

Unknown

Western blot - Anti-JAK2 antibody [EPR108(2)] (AB108596)

All lanes:

Western blot - Anti-JAK2 antibody [EPR108(2)] (ab108596) at 1/1000 dilution

Lane 1:

TF-1 cell lysate at 10 µg

Lane 2:

K562 cell lysate at 10 µg

Lane 3:

THP-1 cell lysate at 10 µg

Lane 4:

Jurkat cell lysate at 10 µg

Lane 5:

NIH3T3 cell lysate at 10 µg

Lane 6:

IM-9 cell lysate at 10 µg

Predicted band size: 131 kDa

Observed band size: 130 kDa

false

  • Carrier free

    Anti-JAK2 antibody [EPR108(2)] - BSA and Azide free

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

EPR108(2)

Isotype

IgG

Carrier free

No

Reacts with

Mouse, Rat, Human

Applications

ICC/IF, WB, IP

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "IP" : {"fullname" : "Immunoprecipitation", "shortname":"IP"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"}, "IHCP" : {"fullname" : "Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)", "shortname":"IHC-P"}, "ICCIF" : {"fullname" : "Immunocytochemistry/ Immunofluorescence", "shortname":"ICC/IF"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "IP-species-checked": "testedAndGuaranteed", "IP-species-dilution-info": "1/80", "IP-species-notes": "<p></p>", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/5000", "WB-species-notes": "<p><strong>For unpurified use at 1/1000.</strong></p>", "IHCP-species-checked": "notRecommended", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p></p>", "ICCIF-species-checked": "testedAndGuaranteed", "ICCIF-species-dilution-info": "1/150", "ICCIF-species-notes": "<p><strong>For unpurified use at 1/100 - 1/500.</strong></p>" }, "Mouse": { "IP-species-checked": "guaranteed", "IP-species-dilution-info": "", "IP-species-notes": "", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/5000", "WB-species-notes": "<p><strong>For unpurified use at 1/1000.</strong></p>", "IHCP-species-checked": "notRecommended", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p></p>", "ICCIF-species-checked": "guaranteed", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "" }, "Rat": { "IP-species-checked": "guaranteed", "IP-species-dilution-info": "", "IP-species-notes": "", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/5000", "WB-species-notes": "<p><strong>For unpurified use at 1/1000.</strong></p>", "IHCP-species-checked": "notRecommended", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p></p>", "ICCIF-species-checked": "guaranteed", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "" } } }

Product details

What is this antibody validated in?
Anti-JAK2 antibody [EPR108(2)] (ab108596) is a rabbit recombinant monoclonal antibody and is validated for use in Western Blot (WB), Immunoprecipitation (IP), Immunocytochemistry/immunofluorescence (ICC/IF) in Human, Mouse, Rat samples.

What is the molecular weight of JAK2?
Anti-JAK2 [EPR108(2)] (ab108596) specifically detects a band for JAK2 (UniProt: O60674) at a molecular weight of 131kDa.

Trusted by the scientific community
Anti-JAK2 [EPR108(2)] (ab108596) was first used in a scientific publication in 2011 and has been cited over 160 times in peer-reviewed journals.

Trial sizes available!
Test your antibody or perform pre-screening before committing to a larger quantity. Sold in 10µl. Discover our selection of trial-size antibodies.

Specificity confirmed
The specificity of Anti-JAK2 antibody [EPR108(2)] (ab108596) has been confirmed by Western blot testing in JAK2 Knockout A549 cell line, ab267113.

Other related products
We have a range of other formats of antibody clone [EPR108(2)] also available for your convenience: ab108596, Carrier free - ab170718

Patented technology
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A
Storage buffer
pH: 7.2 - 7.4 Preservative: 0.01% Sodium azide Constituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Stable for 12 months at -20°C

Supplementary information

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

JAK2 also known as Janus kinase 2 is a protein tyrosine kinase with a molecular weight of 125 kDa. It plays an essential mechanical role in the signaling pathways by acting as an intermediary between cell surface receptors and intracellular signaling molecules. The JAK2 protein binds to certain cytokine receptors facilitating signal transduction necessary for various cellular responses. JAK2 is expressed in many tissues including hematopoietic cells which are associated with the blood and immune systems.
Biological function summary

JAK2 is important for transmitting signals that dictate cell growth survival and differentiation within the hematopoietic system. It operates bodily functions by forming complexes with specific phosphorylation sites on its associated receptors. Through this formation JAK2 influences the signaling cascade particularly by interacting with other signal transducers and activators where it phosphorylates and becomes activated. This action affects gene transcription directly correlated with cellular proliferation and differentiation processes.

Pathways

The function of JAK2 integrates into the JAK-STAT signaling pathway which is an important pathway in the regulation of immune function growth and development. It works in conjunction with proteins such as STAT3 and STAT5 to transmit signals from cytokine receptors to the nucleus. This pathway critically impacts responses like inflammation and hematopoiesis aligning with its role in precursor proliferation within the bone marrow and various immune cells' function.

JAK2 has significant implications in conditions like myeloproliferative neoplasms and polycythemia vera. Mutations in the JAK2 gene notably the JAK2 V617F mutation lead to uncontrolled cell division as they disrupt normal signaling mechanisms often resulting in blood cell disorders. In these contexts JAK2 interacts with proteins such as EpoR and MPL which play roles within these disease pathways. Understanding how JAK2 mutations contribute to disease progression offers pathways for targeted therapies.

Product protocols

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

Target data

Non-receptor tyrosine kinase involved in various processes such as cell growth, development, differentiation or histone modifications. Mediates essential signaling events in both innate and adaptive immunity. In the cytoplasm, plays a pivotal role in signal transduction via its association with type I receptors such as growth hormone (GHR), prolactin (PRLR), leptin (LEPR), erythropoietin (EPOR), thrombopoietin receptor (MPL/TPOR); or type II receptors including IFN-alpha, IFN-beta, IFN-gamma and multiple interleukins (PubMed : 15690087, PubMed : 7615558, PubMed : 9657743, PubMed : 15899890). Following ligand-binding to cell surface receptors, phosphorylates specific tyrosine residues on the cytoplasmic tails of the receptor, creating docking sites for STATs proteins (PubMed : 15690087, PubMed : 9618263). Subsequently, phosphorylates the STATs proteins once they are recruited to the receptor. Phosphorylated STATs then form homodimer or heterodimers and translocate to the nucleus to activate gene transcription. For example, cell stimulation with erythropoietin (EPO) during erythropoiesis leads to JAK2 autophosphorylation, activation, and its association with erythropoietin receptor (EPOR) that becomes phosphorylated in its cytoplasmic domain (PubMed : 9657743). Then, STAT5 (STAT5A or STAT5B) is recruited, phosphorylated and activated by JAK2. Once activated, dimerized STAT5 translocates into the nucleus and promotes the transcription of several essential genes involved in the modulation of erythropoiesis. Part of a signaling cascade that is activated by increased cellular retinol and that leads to the activation of STAT5 (STAT5A or STAT5B) (PubMed : 21368206). In addition, JAK2 mediates angiotensin-2-induced ARHGEF1 phosphorylation (PubMed : 20098430). Plays a role in cell cycle by phosphorylating CDKN1B (PubMed : 21423214). Cooperates with TEC through reciprocal phosphorylation to mediate cytokine-driven activation of FOS transcription. In the nucleus, plays a key role in chromatin by specifically mediating phosphorylation of 'Tyr-41' of histone H3 (H3Y41ph), a specific tag that promotes exclusion of CBX5 (HP1 alpha) from chromatin (PubMed : 19783980). Up-regulates the potassium voltage-gated channel activity of KCNA3 (PubMed : 25644777).
See full target information JAK2

Publications (263)

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

Neoplasia (New York, N.Y.) 68:101219 PubMed40840329

2025

Prkci activates Jak2/Stat3 signaling to promote tumor angiogenesis: Short Name: Prkci in tumor angiogenesis.

Applications

Unspecified application

Species

Unspecified reactive species

Peng Li,Guangshi Liu,Wenbin Zhang,Tao Li,Xinhui Yang

Drug design, development and therapy 19:6699-6717 PubMed40786248

2025

Ursolic Acid Ameliorates Diabetic Nephropathy by Inhibiting JAK2/STAT3-Driven Ferroptosis: Mechanistic Insights from Network Pharmacology and Experimental Validation.

Applications

Unspecified application

Species

Unspecified reactive species

Yijing Zhou,Chengli Lou,Xiuqin Xu,Bo Feng,Xiaoping Fan,Xiangjing Wang

Materials today. Bio 33:102027 PubMed40677394

2025

Deliver CEBPE via cartilage targeting Lipid nanoparticle to block CEBPE-LTF-STAT3 positive feedback loop for efficient treatment of cartilage endplate degeneration.

Applications

Unspecified application

Species

Unspecified reactive species

Jiangminghao Zhao,Peichuan Xu,Tao Li,Jinghong Yuan,Wenrui Zhao,Rui Ding,Guoyu Yang,Jiajun Xie,Guanfeng Huang,Zhidong Peng,Xinxin Miao,Xigao Cheng

International journal of molecular sciences 26: PubMed40565000

2025

SARS-CoV-2 ORF7a Protein Impedes Type I Interferon-Activated JAK/STAT Signaling by Interacting with HNRNPA2B1.

Applications

Unspecified application

Species

Unspecified reactive species

Yujie Wen,Chaochao Li,Tian Tang,Chao Luo,Shan Lu,Na Lyu,Yongxi Li,Rong Wang

Drug design, development and therapy 19:4123-4138 PubMed40416794

2025

Potential of Sivelestat for Pulmonary Arterial Hypertension Treatment: Network Pharmacology-Based Target Identification and Mechanistic Exploration.

Applications

Unspecified application

Species

Unspecified reactive species

Xiaodong Deng,Pengcheng Qiu,Xin Li,Yukun Hu,Qing Que,Kunchi Zhang,Tianlin Deng,Yi Liu

Molecular medicine (Cambridge, Mass.) 31:197 PubMed40389855

2025

Cytoplasmic HMGB1 promotes the activation of JAK2-STAT3 signaling and PD-L1 expression in breast cancer.

Applications

Unspecified application

Species

Unspecified reactive species

Ju-Young Han,Woo Joong Rhee,Jeon-Soo Shin

Physiological reports 13:e70360 PubMed40338178

2025

CIAPIN1 promotes proliferation and migration of PDGF-BB-activated airway smooth muscle cells via the PI3K/AKT and JAK2/STAT3 signaling pathways.

Applications

Unspecified application

Species

Unspecified reactive species

Ling Zhu,Jin Zhou,Yunfan Gu,Yongtian Xu,Yanfang Guo

International journal of women's health 17:1165-1174 PubMed40308269

2025

MiR-484 Regulates the IL-6/STAT3 Signaling Pathway by Down-Regulating KLF12 to Inhibit the Malignant Progression of Cervical Cancer.

Applications

Unspecified application

Species

Unspecified reactive species

Keyong Bao,Xue Zhang,Lihong Bao,Xiaoyu Tao,Li Zhang,Dong Wang

Redox biology 83:103638 PubMed40286437

2025

iPSC-derived cardiomyocytes and engineered heart tissues reveal suppressed JAK2/STAT3 signaling in LMNA-related emery-dreifuss muscular dystrophy.

Applications

Unspecified application

Species

Unspecified reactive species

Hangping Fan,Zongkuai Yang,Hangying Ying,Jiuxiao Zhao,Xiaochen Wang,Junhao Gong,Lingying Li,Xujie Liu,Tingyu Gong,Qing Ke,Lenan Zhuang,Ping Liang

European thyroid journal 14: PubMed40198658

2025

The mammalian acid chitinase promotes oncogenic properties of thyroid cancer cells through the JAK2/STAT3 pathway.

Applications

Unspecified application

Species

Unspecified reactive species

Zhiyuan Ma,Renmin Mu,Zhengxing Zhou,Zilai Hu,Mimi Shen,Chengli Lu,Hu Wang,Chengmin Zhang,Minglin Zhang,Zhiqiang Yi,Zilin Deng,Yingying Zhao,Jiaxing Zhu,Guorong Wen,Hai Jin,Jiaxing An,Biguang Tuo,Xuemei Liu,Taolang Li
View all publications

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