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AB108515

Anti-ITCH/AIP4 antibody [EPR4936]

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(10 Publications)

Rabbit Recombinant Monoclonal ITCH/AIP4 antibody. Suitable for WB and reacts with Mouse, Rat, Human samples. Cited in 10 publications.

View Alternative Names

E3 ubiquitin-protein ligase Itchy homolog, Itch, Atrophin-1-interacting protein 4, HECT-type E3 ubiquitin transferase Itchy homolog, NFE2-associated polypeptide 1, AIP4, NAPP1, ITCH

5 Images
Western blot - Anti-ITCH/AIP4 antibody [EPR4936] (AB108515)
  • WB

Lab

Western blot - Anti-ITCH/AIP4 antibody [EPR4936] (AB108515)

Lane 1 : Wild-type HAP1 cell lysate (20 μg)
Lane 2 : ITCH/AIP4 knockout HAP1 cell lysate (20 μg)
Lane 3 : HeLa cell lysate (20 μg)
Lane 4 : K562 cell lysate (20 μg)
Lanes 1 - 4 : Merged signal (red and green). Green - ab108515 observed at 110 kDa. Red - loading control, ab8245, observed at 37 kDa.

ab108515 was shown to specifically react with ITCH/AIP4 when ITCH/AIP4 knockout samples were used. Wild-type and ITCH/AIP4 knockout samples were subjected to SDS-PAGE. ab108515 and ab8245 (loading control to GAPDH) were diluted 1/500 and 1/10000 respectively and incubated overnight at 4°C. 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 1/10000 dilution for 1 hour at room temperature before imaging.

All lanes:

Western blot - Anti-ITCH/AIP4 antibody [EPR4936] (ab108515)

Predicted band size: 103 kDa

Observed band size: 110 kDa

false

Western blot - Anti-ITCH/AIP4 antibody [EPR4936] (AB108515)
  • WB

Unknown

Western blot - Anti-ITCH/AIP4 antibody [EPR4936] (AB108515)

All lanes:

Western blot - Anti-ITCH/AIP4 antibody [EPR4936] (ab108515) at 1/1000 dilution

Lane 1:

K562 cell lysate at 10 µg

Lane 2:

HeLa cell lysate at 10 µg

Lane 3:

293T cell lysate at 10 µg

Predicted band size: 103 kDa

false

Western blot - Anti-ITCH/AIP4 antibody [EPR4936] (AB108515)
  • WB

Lab

Western blot - Anti-ITCH/AIP4 antibody [EPR4936] (AB108515)

Lanes 1-4 : Merged signal (red and green). Green - ab108515 observed at 103 kDa. Red - loading control ab8245 observed at 36 kDa.

ab108515 Anti-ITCH/AIP4 antibody [EPR4936] was shown to specifically react with ITCH/AIP4 in wild-type HeLa cells. Loss of signal was observed when knockout cell line ab265338 (knockout cell lysate ab258014) was used. Wild-type and ITCH/AIP4 knockout samples were subjected to SDS-PAGE. ab108515 and Anti-GAPDH antibody [6C5] - Loading Control (ab8245) were incubated overnight at 4°C at 1 in 1000 dilution and 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-ITCH/AIP4 antibody [EPR4936] (ab108515) at 1/1000 dilution

Lane 1:

Wild-type HeLa cell lysate at 20 µg

Lane 2:

ITCH knockout HeLa cell lysate at 20 µg

Lane 2:

Western blot - Human ITCH (AIP4) knockout HeLa cell line (<a href='/en-us/products/cell-lines/human-itch-aip4-knockout-hela-cell-line-ab265338'>ab265338</a>)

Lane 3:

HAP1 cell lysate at 20 µg

Lane 4:

K-562 cell lysate at 20 µg

Secondary

All lanes:

Western blot - Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-irdye-800cw-preadsorbed-ab216773'>ab216773</a>) at 1/10000 dilution

Predicted band size: 103 kDa,43 kDa

Observed band size: 103 kDa,57 kDa

false

Western blot - Anti-ITCH/AIP4 antibody [EPR4936] (AB108515)
  • WB

Lab

Western blot - Anti-ITCH/AIP4 antibody [EPR4936] (AB108515)

ab108515 was shown to react with ITCH in wild-type   cells in Western blot with loss of signal observed in a ITCH knockout cell line. Wild-type   and ITCH knockout cell lysates were subjected to SDS-PAGE. Membranes were blocked in 5% milk in TBST for 1 hr before incubation with ab108515 overnight at 4 °C at a 1/1000 dilution. Blots were incubated with secondary antibodies at 0.2 µg/mL before imaging.

These data were provided by YCharOS Inc., an open science company with the mission of characterizing commercially available antibody reagents for all human proteins. Abcam and YCharOS are working together to help address the reproducibility crisis by enabling the life science community to better evaluate commercially available antibodies.

All lanes:

Western blot - Anti-ITCH/AIP4 antibody [EPR4936] (ab108515) at 1/1000 dilution

Lane 1:

Wild-type HeLa lysate at 100 µg

Lane 2:

ITCH knock-out HeLa  lysate at 100 µg

false

Western blot - Anti-ITCH/AIP4 antibody [EPR4936] (AB108515)
  • WB

Lab

Western blot - Anti-ITCH/AIP4 antibody [EPR4936] (AB108515)

Blocking buffer and concentration : 5% NFDM/TBST

All lanes:

Western blot - Anti-ITCH/AIP4 antibody [EPR4936] (ab108515) at 1/1000 dilution

Lane 1:

Mouse brain lysate at 20 µg

Lane 2:

Rat brain 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: 103 kDa

Observed band size: 103 kDa

false

Exposure time: 1min

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

EPR4936

Isotype

IgG

Carrier free

No

Reacts with

Mouse, Rat, Human

Applications

WB

applications

Immunogen

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

Reactivity data

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Product details

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
Purity
Tissue culture supernatant
Storage buffer
pH: 7.2 - 7.4 Preservative: 0.05% Sodium azide Constituents: 50% Tissue culture supernatant, 40% Glycerol (glycerin, glycerine), 9.85% Tris glycine, 0.1% BSA
Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Storage information
Stable for 12 months at -20°C

Supplementary information

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

ITCH also known as AIP4 is an E3 ubiquitin ligase with a molecular mass of approximately 108 kDa. The protein primarily functions in the ubiquitination process which regulates protein degradation via the proteasome. ITCH is known for its role in the post-translational modification of proteins through ubiquitin tagging facilitating the promotion or suppression of signal transduction pathways. Expression of ITCH occurs in various tissues including lymphocytes and epithelial cells indicating its diverse functional roles in different physiological contexts.
Biological function summary

ITCH/AIP4 is integral in cellular regulatory mechanisms. It forms part of a sophisticated complex involved in immune response modulation cell cycle regulation and apoptosis. ITCH influences T-cell receptor signaling by controlling the degradation of proteins involved in these critical pathways. Through the ubiquitination cascade ITCH maintains cellular homeostasis participating in the intricate balance of protein synthesis and degradation necessary for normal cellular function.

Pathways

ITCH/AIP4 plays essential roles in the T-cell receptor and Wnt signaling pathways. It interacts with other proteins such as NEDD4 and CBL which are also E3 ubiquitin ligases to modulate signaling cascades involved in immune responses and cellular growth. In the Wnt pathway ITCH regulates the stability of Dishevelled proteins thereby affecting cellular proliferation and differentiation processes. This involvement in multiple pathways highlights its regulatory versatility and importance in maintaining cellular balance.

ITCH/AIP4 is associated with autoimmune diseases and cancer. Its dysfunction can lead to abnormal immune responses contributing to conditions such as systemic lupus erythematosus. Moreover the protein's role in oncogenesis is linked to its ability to modify tumor suppressor and oncoprotein levels including p53 and c-Jun. Disruption in ITCH's function can result in unchecked cell growth and survival emphasizing its potential as a therapeutic target in cancer treatment.

Product protocols

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

Target data

Acts as an Acts as an E3 ubiquitin-protein ligase which accepts ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates (PubMed : 11046148, PubMed : 14602072, PubMed : 15051726, PubMed : 16387660, PubMed : 17028573, PubMed : 18718448, PubMed : 18718449, PubMed : 19116316, PubMed : 19592251, PubMed : 19881509, PubMed : 20068034, PubMed : 20392206, PubMed : 20491914, PubMed : 23146885, PubMed : 24790097, PubMed : 25631046). Catalyzes 'Lys-29'-, 'Lys-48'- and 'Lys-63'-linked ubiquitin conjugation (PubMed : 17028573, PubMed : 18718448, PubMed : 19131965, PubMed : 19881509). Involved in the control of inflammatory signaling pathways (PubMed : 19131965). Essential component of a ubiquitin-editing protein complex, comprising also TNFAIP3, TAX1BP1 and RNF11, that ensures the transient nature of inflammatory signaling pathways (PubMed : 19131965). Promotes the association of the complex after TNF stimulation (PubMed : 19131965). Once the complex is formed, TNFAIP3 deubiquitinates 'Lys-63' polyubiquitin chains on RIPK1 and catalyzes the formation of 'Lys-48'-polyubiquitin chains (PubMed : 19131965). This leads to RIPK1 proteasomal degradation and consequently termination of the TNF- or LPS-mediated activation of NFKB1 (PubMed : 19131965). Ubiquitinates RIPK2 by 'Lys-63'-linked conjugation and influences NOD2-dependent signal transduction pathways (PubMed : 19592251). Regulates the transcriptional activity of several transcription factors, and probably plays an important role in the regulation of immune response (PubMed : 18718448, PubMed : 20491914). Ubiquitinates NFE2 by 'Lys-63' linkages and is implicated in the control of the development of hematopoietic lineages (PubMed : 18718448). Mediates JUN ubiquitination and degradation (By similarity). Mediates JUNB ubiquitination and degradation (PubMed : 16387660). Critical regulator of type 2 helper T (Th2) cell cytokine production by inducing JUNB ubiquitination and degradation (By similarity). Involved in the negative regulation of MAVS-dependent cellular antiviral responses (PubMed : 19881509). Ubiquitinates MAVS through 'Lys-48'-linked conjugation resulting in MAVS proteasomal degradation (PubMed : 19881509). Following ligand stimulation, regulates sorting of Wnt receptor FZD4 to the degradative endocytic pathway probably by modulating PI42KA activity (PubMed : 23146885). Ubiquitinates PI4K2A and negatively regulates its catalytic activity (PubMed : 23146885). Ubiquitinates chemokine receptor CXCR4 and regulates sorting of CXCR4 to the degradative endocytic pathway following ligand stimulation by ubiquitinating endosomal sorting complex required for transport ESCRT-0 components HGS and STAM (PubMed : 14602072, PubMed : 23146885, PubMed : 34927784). Targets DTX1 for lysosomal degradation and controls NOTCH1 degradation, in the absence of ligand, through 'Lys-29'-linked polyubiquitination (PubMed : 17028573, PubMed : 18628966, PubMed : 23886940). Ubiquitinates SNX9 (PubMed : 20491914). Ubiquitinates MAP3K7 through 'Lys-48'-linked conjugation (By similarity). Together with UBR5, involved in the regulation of apoptosis and reactive oxygen species levels through the ubiquitination and proteasomal degradation of TXNIP : catalyzes 'Lys-48'-/'Lys-63'-branched ubiquitination of TXNIP (PubMed : 20068034, PubMed : 29378950). ITCH synthesizes 'Lys-63'-linked chains, while UBR5 is branching multiple 'Lys-48'-linked chains of substrate initially modified (PubMed : 29378950). Mediates the antiapoptotic activity of epidermal growth factor through the ubiquitination and proteasomal degradation of p15 BID (PubMed : 20392206). Ubiquitinates BRAT1 and this ubiquitination is enhanced in the presence of NDFIP1 (PubMed : 25631046). Inhibits the replication of influenza A virus (IAV) via ubiquitination of IAV matrix protein 1 (M1) through 'Lys-48'-linked conjugation resulting in M1 proteasomal degradation (PubMed : 30328013). Ubiquitinates NEDD9/HEF1, resulting in proteasomal degradation of NEDD9/HEF1 (PubMed : 15051726).
See full target information E3 ubiquitin-protein ligase Itchy homolog

Publications (10)

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

The Tohoku journal of experimental medicine : PubMed41062301

2025

KLF5 Alleviates Excessive Autophagy-Induced Podocyte Injury by Enhancing ITCH-Mediated Ubiquitination of ACTR2.

Applications

Unspecified application

Species

Unspecified reactive species

Xianchu Lin,Huirong Lin,Man Luo,Jun Han,Yan Hu,Shilong Xiang,Zejun Fang

Signal transduction and targeted therapy 10:157 PubMed40360476

2025

Exosomal transfer of pro-pyroptotic miR-216a-5p exacerbates anthracycline cardiotoxicity through breast cancer-heart pathological crosstalk.

Applications

Unspecified application

Species

Unspecified reactive species

Yan Ma,Yongjun Wang,Renzheng Chen,Yabin Wang,Yan Fang,Cheng Qin,Tianhu Wang,Xiaoying Shen,Tingwen Zhou,Lei Tian,Ting Sun,Li Fan,Xiaoning Wang,Dong Han,Feng Cao

The Journal of biological chemistry 299:105474 PubMed37981209

2023

β-arrestin1 is an E3 ubiquitin ligase adaptor for substrate linear polyubiquitination.

Applications

Unspecified application

Species

Unspecified reactive species

Chandler J McElrath,Sara Benzow,Ya Zhuo,Adriano Marchese

International journal of molecular sciences 24: PubMed36834700

2023

Proximity Labeling to Identify β-Arrestin1 Binding Partners Downstream of Ligand-Activated G Protein-Coupled Receptors.

Applications

Unspecified application

Species

Unspecified reactive species

Ya Zhuo,Valeria L Robleto,Adriano Marchese

Cell reports 39:110656 PubMed35417709

2022

An oxygen-adaptive interaction between SNHG12 and occludin maintains blood-brain barrier integrity.

Applications

Unspecified application

Species

Unspecified reactive species

Yuan Li,Jia-Yi Wei,Hui Liu,Kang-Ji Wang,Sheng-Nan Jin,Zheng-Kang Su,Hui-Jie Wang,Jun-Xiu Shi,Bo Li,De-Shu Shang,Wen-Gang Fang,Xiao-Xue Qin,Wei-Dong Zhao,Yu-Hua Chen

Translational cancer research 10:2368-2378 PubMed35116552

2022

The E3 protein ubiquitin ligase Itch is a potential target in myeloid malignancies with marrow fibrosis.

Applications

Unspecified application

Species

Unspecified reactive species

Shuang Han,Yao Zhang,Cha Guo,Chunkang Chang

Carcinogenesis 42:650-662 PubMed33569599

2021

Pirh2, an E3 ligase, regulates the AIP4-p73 regulatory pathway by modulating AIP4 expression and ubiquitination.

Applications

Unspecified application

Species

Unspecified reactive species

Rami Abou Zeinab,H Helena Wu,Yasser Abuetabh,Sarah Leng,Consolato Sergi,David D Eisenstat,Roger P Leng

Acta pharmacologica Sinica 42:436-450 PubMed32647339

2020

KLF4 initiates sustained YAP activation to promote renal fibrosis in mice after ischemia-reperfusion kidney injury.

Applications

Unspecified application

Species

Unspecified reactive species

Dan Xu,Pan-Pan Chen,Pei-Qing Zheng,Fan Yin,Qian Cheng,Zhuan-Li Zhou,Hong-Yan Xie,Jing-Yao Li,Jia-Yun Ni,Yan-Zhe Wang,Si-Jia Chen,Li Zhou,Xiao-Xia Wang,Jun Liu,Wei Zhang,Li-Min Lu

Experimental cell research 383:111505 PubMed31326389

2019

NEDD4 protects vascular endothelial cells against Angiotensin II-induced cell death via enhancement of XPO1-mediated nuclear export.

Applications

Unspecified application

Species

Unspecified reactive species

Jianning Xu,Zhiyong Sheng,Fuxin Li,Shu Wang,Ying Yuan,Meng Wang,Zhihong Yu

Communications biology 2:23 PubMed30675521

2019

MEP50/PRMT5-mediated methylation activates GLI1 in Hedgehog signalling through inhibition of ubiquitination by the ITCH/NUMB complex.

Applications

Unspecified application

Species

Unspecified reactive species

Yoshinori Abe,Yosuke Suzuki,Kenji Kawamura,Nobuyuki Tanaka
View all publications

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