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  4. JAK2 Antibody (YA721)

JAK2 Antibody (YA721) is a Mouse-derived and non-conjugated IgG2b monoclonal antibody, targeting to JAK2.

For research use only. We do not sell to patients.

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Top Publications Citing Use of Products
  • WB: Western Blot;
  • IHC-P: Immunohistochemistry-Paraffin;
  • IHC-F: Immunohistochemistry-Frozen;
  • ICC/IF: Immunocytochemistry/Immunofluorescence;
  • IF-Tissue: Immunofluorescence-Tissue;
  • mIHC: Multiplex Immunohistochemical;
  • IP: Immunoprecipitation;
  • ChIP: Chromatin Immunoprecipitation;
  • FC: Flow Cytometry;
  • ELISA: Enzyme Linked Immunosorbent Assay
  • Product Detail

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  • Documentation

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Description

JAK2 Antibody (YA721) is a Mouse-derived and non-conjugated IgG2b monoclonal antibody, targeting to JAK2.

Host

Mouse

Clonality

Monoclonal

Molecular Weight
Predicted band size: 130kDa;
Observed band size: 130 kDa
Note: Due to possible protein modifications or aggregation, the molecular weight should be confirmed by actual measurement, and the predicted value is for reference only.
Species Reactivity
Human, Mouse, Rat
SwissProt ID
Gene ID
Immunogen

Synthetic peptide corresponding to Human JAK2.AA range:883-1132.

Application &
Dilution Ratio
Application Dilution Ratio
WB
WB: Western Blot
1:2000
ICC/IF
ICC/IF: Immunocytochemistry/Immunofluorescence
1:50
FC
FC: Flow Cytometry
1:200
IHC-P
IHC-P: Immunohistochemistry-Paraffin
1:200
Sensitivity Endogenous Purity Protein A affinity purified.
Conjugation Non-conjugated Modification Unmodified
Isotype IgG2b  
Appearance

Solution

Formulation

Supplied in 1*PBS (pH7.4), 0.2% BSA and 40% Glycerol. Preservative: 0.05% Sodium Azide.

Storage & Stability

Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.

Shipping

Shipping with blue ice.

Verification Image
ALL WB IHC-P ICC
  • Western blot analysis of extracts from K562 (lane 2(20μg), RAW264.7 (lane 3(20μg) and C6(lane 4(40μg) using JAK2 (HY-P80421) Mouse mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature.

  • Western blot analysis of extracts from K562 (lane 1(20μg)) 、THP-1 (lane 2(20μg)) 、Jurkat (lane 3(20μg)) and NIH-3T3 (lane 4(20μg)) using Jak2 Antibody (HY-P80421) . Proteins were transferred to a PVDF membrane and blocked with 5% nonfat dry milk in TBST for 1.5 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (GAPDH, 1/10000) was used in 5% nonfat dry milk in TBST at 4℃ overnight. Goat Anti-Mouse IgG-HRP Secondary Antibody (1/10,000) was used for 1 hour at room temperature.

  • Immunohistochemical analysis of paraffin-embedded Rat kidney tissue using JAK2 Antibody (YA721). The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 8 minutes. The tissues were blocked in QuickBlock for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (HY-P80421, 1/200) in 4℃ overnight. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

  • Immunohistochemical analysis of paraffin-embedded Rat kidney tissue using JAK2 Antibody (YA721). The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for 8 minutes. The tissues were blocked in QuickBlock for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (HY-P80421, 1/200) in 4℃ overnight. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

  • Immunocytochemistry analysis of RAW264.7 cells labeling JAK2 with JAK2 Antibody (HY-P80421)at 1/50 dilution. Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 for 10 minutes at room temperature, then blocked with QuickBlock™ Blocking Buffer for Immunol Staining for 10 min at room temperature. Cells were then incubated with JAK2 Antibody (HY-P80421) at 1/50 dilution in QuickBlock™ Blocking Buffer for Immunol Staining at 4 ℃. Alexa Fluor® 488-conjugated AffiniPure Goat Anti-Mouse IgG H&L(HY-P8005, Green) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. The Nuclear counterstain was DAPI (Blue).

  • Immunocytochemistry analysis of MCF-7 cells labeling JAK2 with JAK2 Antibody (HY-P80421) at 1/50 dilution. Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 for 10 minutes at room temperature, then blocked with QuickBlock™ Blocking Buffer for Immunol Staining for 10 min at room temperature. Cells were then incubated with JAK2 Antibody (HY-P80421) at 1/50 dilution in QuickBlock™ Blocking Buffer for Immunol Staining at 4 ℃. Alexa Fluor® 488-conjugated AffiniPure Goat Anti-Mouse IgG H&L(HY-P8005, Green) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. The Nuclear counterstain was DAPI (Blue).

Background
Function: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)
Subcellular Localization:Endomembrane system; Peripheral membrane protein; Cytoplasm; Nucleus
Expression:
Tissue_specificity:Commonly expressed in most organizations
Subunit:Interacts with EPOR, LYN, SIRPA, SH2B1 and TEC (By similarity). Interacts with IL23R (PubMed:12023369). Interacts with SKB1 (PubMed:10531356). Interacts with STAM2 (PubMed:10899310). Interacts with IFNGR2 (via intracellular domain) (PubMed:7615558, PubMed:7673114). Interacts with LEPR (Isoform B) (By similarity). Interacts with HSP90AB1; promotes functional activation in a heat shock-dependent manner (PubMed:20353823). Interacts with STRA6 (PubMed:21368206). Interacts with RHEX; this interaction occurs in a erythropoietin (EPO)-dependent manner (PubMed:25092874). Interacts with ASB2; the interaction targets JAK2 for Notch-induced proteasomal degradation (PubMed:21119685). Interacts with MPL/TPOR (PubMed:15899890)
RRID
Database
Research Field

Cell Biology

Synonyms
Tyrosine-protein kinase JAK2, Janus kinase 2, JAK-2, JAK2
Documentation
References
Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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JAK2 Antibody (YA721)
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HY-P80421
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