JavaScript is disabled in your browser. Please enable JavaScript to view this website.
AB85492

Anti-Kir2.1/KCNJ2 antibody [S112]

Be the first to review this product! Submit a review

|

(10 Publications)

Mouse Monoclonal Kir2.1/KCNJ2 antibody. Suitable for Flow Cyt, WB, IHC-P, ICC/IF and reacts with Human, African green monkey, Mouse samples. Cited in 10 publications. Immunogen corresponding to Recombinant Fragment Protein within Mouse Kcnj2 aa 1-100.

View Alternative Names

IRK1, KCNJ2, Inward rectifier potassium channel 2, Cardiac inward rectifier potassium channel, Inward rectifier K(+) channel Kir2.1, IRK-1, hIRK1

6 Images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Kir2.1/KCNJ2 antibody [S112] (AB85492)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Kir2.1/KCNJ2 antibody [S112] (AB85492)

ab85492 staining Kir2.1/KCNJ2 in human hippocampal tissue by IHC-P (Bouin's fixed paraffin embedded).

Incubated with primary antibody at 1 : 1000 for 1 hour at RT. Secondary Antibody : FITC Goat Anti-Mouse (green) at 1 : 50 for 1 hour at RT.

Immunocytochemistry/ Immunofluorescence - Anti-Kir2.1/KCNJ2 antibody [S112] (AB85492)
  • ICC/IF

Unknown

Immunocytochemistry/ Immunofluorescence - Anti-Kir2.1/KCNJ2 antibody [S112] (AB85492)

ICC/IF image of ab85492 stained SK-N-SH (Human neuroblastoma cell line) cells.

The cells were 4% formaldehyde fixed (10 minutes) and then incubated in 1% BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1 hour to permeabilize the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab85492, 10 μg/ml) overnight at +4°C. The secondary antibody (green) was ab96879, DyLight® 488 goat anti-mouse IgG (H+L) used at a 1/250 dilution for 1 hour. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1 hour. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43 μM.

Flow Cytometry - Anti-Kir2.1/KCNJ2 antibody [S112] (AB85492)
  • Flow Cyt

Unknown

Flow Cytometry - Anti-Kir2.1/KCNJ2 antibody [S112] (AB85492)

Overlay histogram showing SH-SY5Y (Human neuroblastoma cell line from bone marrow) cells stained with ab85492 (red line).

The cells were fixed with 80% methanol (5 minutes) and then permeabilized with 0.1% PBS-Tween for 20 minutes. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab85492, 1 μg/1x106 cells) for 30 minutes at 22°C. The secondary antibody used was DyLight® 488 goat anti-mouse IgG (H+L) (ab96879) at 1/500 dilution for 30 minutes at 22°C. Isotype control antibody (black line) was mouse IgG1 [ICIGG1] (ab91353, 2 μg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed. This antibody gave a positive result in SH-SY5Y cells fixed with 4% paraformaldehyde (10 minutes)/permeabilized in 0.1% PBS-Tween for 20 minutes used under the same conditions.

Immunocytochemistry/ Immunofluorescence - Anti-Kir2.1/KCNJ2 antibody [S112] (AB85492)
  • ICC/IF

Supplier Data

Immunocytochemistry/ Immunofluorescence - Anti-Kir2.1/KCNJ2 antibody [S112] (AB85492)

Immunofluorescent analysis of 4% Paraformaldehyde-fixed Neuroblastoma cells (SH-SY5Y) labeling Kir2.1/KCNJ2 with ab85492 at 1/50 dilution. Secondary antibody : AlexaFluor® 488 at 1/1000 dilution. (A) Hoechst (blue) nuclear stain. (B) Phalloidin-iFluor 647 (red) F-Actin stain. (C) Kir2.1 Antibody (D) Composite. (A) Hoechst (blue) nuclear stain. (B) Phalloidin-iFluor 647 (red) F-Actin stain. (C) Kir2.1 Antibody (D) Composite.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Kir2.1/KCNJ2 antibody [S112] (AB85492)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Kir2.1/KCNJ2 antibody [S112] (AB85492)

ab85492 staining Kir2.1/KCNJ2 in mouse backskin tissue by IHC-P (Bouin's fixed paraffin embedded).

Incubated with primary antibody at 1 : 1000 for 1 hour at RT. Secondary Antibody : FITC Goat Anti-Mouse (green) at 1 : 50 for 1 hour at RT.

Western blot - Anti-Kir2.1/KCNJ2 antibody [S112] (AB85492)
  • WB

Supplier Data

Western blot - Anti-Kir2.1/KCNJ2 antibody [S112] (AB85492)

All lanes:

Western blot - Anti-Kir2.1/KCNJ2 antibody [S112] (ab85492) at 1/1000 dilution

All lanes:

Monkey COS transient cell lysate at 15 µg

Secondary

All lanes:

Sheep Anti-Mouse IgG: HRP for 1 hour at RT.

Predicted band size: 48 kDa

false

Key facts

Host species

Mouse

Clonality

Monoclonal

Clone number

S112

Isotype

IgG1

Carrier free

No

Reacts with

Human, Mouse, African green monkey

Applications

Flow Cyt, ICC/IF, WB, IHC-P

applications

Immunogen

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

Recombinant Protein within Mouse Kcnj2 aa 150 to C-terminus. Database link P35561

Specificity

No cross reactivity against Kir2.2, or Kir2.3

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "FlowCyt" : {"fullname" : "Flow Cytometry", "shortname":"Flow Cyt"}, "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": { "FlowCyt-species-checked": "testedAndGuaranteed", "FlowCyt-species-dilution-info": "1-2 µg for 10^6 Cells", "FlowCyt-species-notes": "<p><a href='/en-us/products/primary-antibodies/mouse-igg1-kappa-monoclonal-15-6e10a7-isotype-control-ab170190'>ab170190</a> - Mouse monoclonal IgG1, is suitable for use as an isotype control with this antibody.</p>", "WB-species-checked": "guaranteed", "WB-species-dilution-info": "", "WB-species-notes": "", "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p></p>", "ICCIF-species-checked": "testedAndGuaranteed", "ICCIF-species-dilution-info": "1-10 µg/mL", "ICCIF-species-notes": "<p></p>" }, "Mouse": { "FlowCyt-species-checked": "guaranteed", "FlowCyt-species-dilution-info": "", "FlowCyt-species-notes": "", "WB-species-checked": "guaranteed", "WB-species-dilution-info": "", "WB-species-notes": "", "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p></p>", "ICCIF-species-checked": "guaranteed", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "" }, "African green monkey": { "FlowCyt-species-checked": "guaranteed", "FlowCyt-species-dilution-info": "", "FlowCyt-species-notes": "", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1 µg/mL", "WB-species-notes": "<p>If bands are weak, use lysate without boiling, heat at 37°C for 15 minutes.</p>", "IHCP-species-checked": "guaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "", "ICCIF-species-checked": "guaranteed", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "" } } }

Product details

The clone number has been updated from S112B-14 to N112B/14, both clone numbers name the same antibody clone.

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein G
Storage buffer
Preservative: 0.09% Sodium azide 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
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

Supplementary information

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

The Kir2.1 protein also known as KCNJ2 belongs to a family of inward-rectifier potassium channels. Kir2.1 is important for setting and stabilizing the resting membrane potential. It has a molecular mass of approximately 48 kDa. Kir2.1 is mainly expressed in the heart and brain tissues and it facilitates the flow of potassium ions across the cell membrane with high efficiency. This modulation of potassium ion movement is critical for maintaining membrane potential and is vital for the normal electrical activity in excitable tissues.
Biological function summary

This process aids in the regulation of cellular excitability. Kir2.1 is an integral part of cell membranes and often associates with other proteins to form a functional channel complex. This complex plays a role in neuronal signaling and cardiac rhythm regulation contributing to various physiological functions in muscle and nerve tissue. Its roles underpin how potassium currents modulate nerve impulses and heartbeats reflecting its participation in the body's complex communication and control systems.

Pathways

The Kir2.1 channel influences the cardiac action potential and is involved in maintaining the stability of the heart’s electrical signaling. It is part of the cardiac conduction pathway. The channel interacts with other cardiac proteins like KCNJ3 and KCNJ5 complementing their function in the repolarization phase of the cardiac action potential. Kir2.1's presence in pathways responsible for repolarization highlights the precision needed for effective cardiac and neurological functions.

Mutations in the Kir2.1 gene KCNJ2 relate to Andersen-Tawil syndrome and cardiac arrhythmias. Andersen-Tawil syndrome characterized by periodic paralysis cardiac arrhythmias and developmental anomalies highlights the multifaceted role Kir2.1 plays in cellular function. Kir2.1 mutations disrupt electrical stability in heart and skeletal muscle tissues. Similar mutations associate with connections to other membrane proteins like KCNH2 often exacerbating arrhythmic risk a critical factor in heart-related conditions.

Product protocols

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

Target data

Inward rectifier potassium channels are characterized by a greater tendency to allow potassium to flow into the cell rather than out of it (PubMed : 36149965, PubMed : 7590287, PubMed : 9490857). Their voltage dependence is regulated by the concentration of extracellular potassium; as external potassium is raised, the voltage range of the channel opening shifts to more positive voltages (PubMed : 7590287, PubMed : 7696590). The inward rectification is mainly due to the blockage of outward current by internal magnesium (PubMed : 9490857). Can be blocked by extracellular barium or cesium (PubMed : 7590287, PubMed : 7696590). Probably participates in establishing action potential waveform and excitability of neuronal and muscle tissues (PubMed : 7590287, PubMed : 7696590, PubMed : 7840300).
See full target information KCNJ2

Publications (10)

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

Journal of translational medicine 22:307 PubMed38528561

2024

Transcriptome and open chromatin analysis reveals the process of myocardial cell development and key pathogenic target proteins in Long QT syndrome type 7.

Applications

Unspecified application

Species

Unspecified reactive species

Peipei Chen,Junyu Long,Tianrui Hua,Zhifa Zheng,Ying Xiao,Lianfeng Chen,Kang Yu,Wei Wu,Shuyang Zhang

Molecular medicine (Cambridge, Mass.) 30:34 PubMed38448811

2024

Hypothalamic POMC neuron-specific knockout of MC4R affects insulin sensitivity by regulating Kir2.1.

Applications

Unspecified application

Species

Unspecified reactive species

Hengru Guo,Ying Xin,Saifei Wang,Xiaoning Zhang,Yanqi Ren,Bo Qiao,Hongjiang Li,Jing Wu,Xiao Hao,Lijun Xu,Yushan Yan,Haohao Zhang

Cell communication and signaling : CCS 21:46 PubMed36864422

2023

KCNJ2/HIF1α positive-feedback loop promotes the metastasis of osteosarcoma.

Applications

Unspecified application

Species

Unspecified reactive species

Mao Shen,Runsang Pan,Shan Lei,Lu Zhang,Changhua Zhou,Zhirui Zeng,Yingjie Nie,Xiaobin Tian

Evidence-based complementary and alternative medicine : eCAM 2022:2836880 PubMed35432558

2022

Effects of Ruanmailing in Blocking Early Stages of Atherosclerosis by TNF- Regulation via Kir2.1.

Applications

Unspecified application

Species

Unspecified reactive species

Liufang Fan,Xuanbin Huang,Wenjuan Xue,Weyan Xie,Ruxi Tong,Jinshui Chen,Tianmin Wu

Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing 63:239-248 PubMed33611692

2021

Glycogen synthase kinase 3 beta inhibitor SB216763 improves Kir2.1 expression after myocardia infraction in rats.

Applications

Unspecified application

Species

Unspecified reactive species

Cheng Chang,Shu-Hui Wang,Li-Na Xu,Xue-Ling Su,Yi-Fan Zeng,Peng Wang,Li-Rong Zhang,Sheng-Na Han

Neuroscience bulletin 35:301-314 PubMed30203408

2018

Kir2.1 Channel Regulation of Glycinergic Transmission Selectively Contributes to Dynamic Mechanical Allodynia in a Mouse Model of Spared Nerve Injury.

Applications

Unspecified application

Species

Unspecified reactive species

Yiqian Shi,Yangyang Chen,Yun Wang

Frontiers in cellular neuroscience 12:76 PubMed29615871

2018

A Novel Mutation Identified in an Autistic Proband Affects the Single Channel Properties of Kir2.1.

Applications

Unspecified application

Species

Unspecified reactive species

Anna Binda,Ilaria Rivolta,Chiara Villa,Elisa Chisci,Massimiliano Beghi,Cesare M Cornaggia,Roberto Giovannoni,Romina Combi

Cancer research 78:3041-3053 PubMed29549164

2018

Kir2.1 Interaction with Stk38 Promotes Invasion and Metastasis of Human Gastric Cancer by Enhancing MEKK2-MEK1/2-ERK1/2 Signaling.

Applications

Unspecified application

Species

Unspecified reactive species

Cheng-Dong Ji,Yan-Xia Wang,Dong-Fang Xiang,Qiang Liu,Zhi-Hua Zhou,Feng Qian,Lang Yang,Yong Ren,Wei Cui,Sen-Lin Xu,Xi-Long Zhao,Xia Zhang,Yan Wang,Peng Zhang,Ji-Ming Wang,You-Hong Cui,Xiu-Wu Bian

PloS one 10:e0141131 PubMed26484867

2015

Decrease in an Inwardly Rectifying Potassium Conductance in Mouse Mammary Secretory Cells after Forced Weaning.

Applications

WB

Species

Mouse

Akihiro Kamikawa,Shota Sugimoto,Osamu Ichii,Daisuke Kondoh

The Biochemical journal 448:103-13 PubMed22880819

2012

A novel dual-fluorescence strategy for functionally validating microRNA targets in 3' untranslated regions: regulation of the inward rectifier potassium channel K(ir)2.1 by miR-212.

Applications

WB

Species

Human

Dana Goldoni,Janet M Yarham,Mary K McGahon,Anna O'Connor,Jasenka Guduric-Fuchs,Kevin Edgar,Denise M McDonald,David A Simpson,Anthony Collins
View all publications

Product promise

We are committed to supporting your work with high-quality reagents, and we're here for you every step of the way. In the unlikely event that one of our products does not perform as expected, you're protected by our Product Promise.
For full details, please see our Terms & Conditions

Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

For licensing inquiries, please contact partnerships@abcam.com