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SAB4200036

Sigma-Aldrich

Anti-ITCH antibody produced in rabbit

~1.5 mg/mL, affinity isolated antibody, buffered aqueous solution

Synonym(s):

Anti-AIP4, Anti-Atrophin-1-interacting protein 4, Anti-Itchy E3 ubiquitin protein ligase homolog, Anti-NAPP1, Anti-NFE2-associated polypeptide 1

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.41

biological source

rabbit

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

form

buffered aqueous solution

mol wt

antigen ~112 kDa

species reactivity

monkey, human

concentration

~1.5 mg/mL

technique(s)

western blot: 1.5-3.0 μg/mL using Jurkat and COS7 cell extracts

UniProt accession no.

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... ITCH(83737)

General description

Itchy E3 ubiquitin protein ligase (ITCH), also known as atrophin 1-interacting protein 4, is encoded by the gene mapped to human 20q11.22. The encoded protein is a member of the Nedd4-like family of E3 ubiquitin ligases. ITCH is characterized by an N- terminal protein kinase C-related C2 domain, four WW domains and a HECT (homologous to the E6-associated protein carboxyl-terminus) ubiquitin protein ligase domain at the C-terminus.

Specificity

Anti-ITCH specifically recognizes human and monkey ITCH.

Application

Anti-ITCH antibody produced in rabbit has been used in western blotting and immunoprecipitation.

Biochem/physiol Actions

ITCH can act as a transcriptional corepressor of nuclear factor erythroid 2 (NFE2)/p45. This protein may participate in mediating the immune responses by modifying Notch-mediated signaling.
Itchy E3 ubiquitin protein ligase (ITCH) in association with Ebola virus VP40 (eVP40), aids in virus-like particles (VLP) and virus budding. Overexpression of the gene is associated with the development of thyroid tumors, mainly anaplastic thyroid carcinoma (ATC). ITCH inhibits hippo tumor suppressor pathway and induce metastasis in breast cancer patients. The encoded protein is implicated in the positive regulation of transforming growth factor-β (TGF-β) signaling and of following epithelial-mesenchymal transition (EMT)-related gene expression. Down-regulated expression of the gene leads to syndromic multisystem autoimmune disease and severe morphologic and developmental abnormalities.

Physical form

Solution in 0.01 M phos­phate buffered saline, pH 7.4, containing 15 mM sodium azide.

Storage and Stability

Store at –20 °C. For continuous use, the product may be stored at 2–8 °C for up to one month. For extended storage, freeze in working aliquots at –20 °C. Repeated freezing and thawing, or storage in “frost-free” freezers, is not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use. Working dilutions should be discarded if not used within 12 hours.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

10 - Combustible liquids

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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X Chen et al.
Genomics, 73(2), 238-241 (2001-04-25)
We have cloned a new protein that interacts with the hematopoietic DNA-binding transcription factor, p45/NF-E2, by screening a human erythroleukemia cell cDNA library with the yeast two-hybrid approach. Predicted peptide sequence and chromosomal mapping identified the cloned molecule to be
Itch E3 ubiquitin ligase positively regulates TGF-? signaling to EMT via Smad7 ubiquitination.
Park SH
Molecules and Cells, 38, 20-25 (2015)
ITCH is a putative target for a novel 20q11.22 amplification detected in anaplastic thyroid carcinoma cells by array-based comparative genomic hybridization.
Ishihara T
Cancer Science, 99, 1940-1949 (2008)
The ubiquitin E3 ligase ITCH enhances breast tumor progression by inhibiting the Hippo tumor suppressor pathway.
Salah Z
Oncotarget, 5, 10886-10900 (2014)
Ke-Jun Han et al.
Human molecular genetics, 25(7), 1392-1405 (2016-02-26)
Low levels of the survival motor neuron (SMN) protein cause spinal muscular atrophy, the leading genetic disorder for infant mortality. SMN is ubiquitously expressed in various cell types and localizes in both the cytoplasm and the nucleus, where it concentrates

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