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C9995

Sigma-Aldrich

Anti-Cullin-4B antibody produced in rabbit

enhanced validation

~1.0 mg/mL, affinity isolated antibody, buffered aqueous solution

Sinonimo/i:

Anti-Cul4B, Anti-MRXHF2, Anti-MRXSC, Anti-SFM2

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About This Item

Codice UNSPSC:
12352203
NACRES:
NA.41

Origine biologica

rabbit

Coniugato

unconjugated

Forma dell’anticorpo

affinity isolated antibody

Tipo di anticorpo

primary antibodies

Clone

polyclonal

Forma fisica

buffered aqueous solution

PM

antigen ~100 kDa

Reattività contro le specie

human

Convalida avanzata

recombinant expression
Learn more about Antibody Enhanced Validation

Concentrazione

~1.0 mg/mL

tecniche

western blot: 0.7-1.5 μg/mL using HEK-293T cells expressing human Cullin-4B.

N° accesso UniProt

Condizioni di spedizione

dry ice

Temperatura di conservazione

−20°C

modifica post-traduzionali bersaglio

unmodified

Informazioni sul gene

human ... CUL4B(8450)
mouse ... Cul4b(72584)
rat ... Cul4b(302502)

Descrizione generale

Mammalian cells express two distinct but highly homologous cullin-4 proteins, cullin-4A and cullin-4B. Cul4A and Cul4B form individual E3 ligases. In contrast to Cul4A, Cul4B has been shown to be localized to the nucleus.

Applicazioni

Anti-Cullin-4B antibody produced in rabbit is suitable for western blotting at a working concentration of 0.7-1.5 μg/mL using HEK-293T cells expressing human Cullin-4B. The antibody was used for immunoblotting in a study to demonstrate that CUL4B E3 ubiquitin ligase plays a key role in targeting Jab1 (Jun activation domain-binding protein) for degradation and regulates bone morphogenetic protein signaling.

Azioni biochim/fisiol

Cullin-4 (Cul4) proteins are the core components of ubiquitin E3 ligases that regulate cell cycle, genome stability and DNA replication. Cul4B functions as an E3 ligase involved in selecting specific targets for ubiquitylation. It associates with damage-specific DNA binding proteins DDB1 and DDB2 (UV-damaged DNA) and functions as a substrate-recruiting factor for Cul4B E3 ligases. Cul4B ubiquitylates several target proteins including β-catenin, cyclin E, and histone H2A Mutations in this gene has been associated with x-linked mental retardation.
Cullin-4B facilitates the transfer of damaged-DNA binding protein 1 (DDB1) into the nucleus independently of DDB2. In contrast to cullin-4A (Cul4A), cullin-4B (Cul4B) does not ubiquitinate DDB2.

Descrizione del bersaglio

Cullin-4B forms a complex that functions as an E3 ubiquitin ligase and catalyzes the polyubiquitination of specific protein substrates in the cell. The protein interacts with a ring finger protein, and is required for the proteolysis of several regulators

Stato fisico

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

Esclusione di responsabilità

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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Prodotti correlati

Codice della classe di stoccaggio

10 - Combustible liquids

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)


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The Xeroderma Pigmentosum Group E Gene Product DDB2 Is a Specific Target of Cullin 4A in Mammalian Cells
Nag A, et al.
Molecular and Cellular Biology, 21(20), 6738-6747 (2001)
Pengyu Li et al.
Oncology letters, 14(2), 1265-1274 (2017-08-16)
Cullin 4B (Cul4B), a scaffold protein that assembles the ubiquitin ligase complex, is involved in a wide variety of physiological and developmental processes, such as cell cycle progression, DNA damage response and gene expression regulation. Cul4B is overexpressed in various
Rachana Tripathi et al.
Journal of biosciences, 32(6), 1133-1138 (2007-10-24)
Beta-catenin is the key transducer of Wingless-type MMTV integration site family member (Wnt) signalling, upregulation of which is the cause of cancer of the colon and other tissues. In the absence of Wnt signals, beta-catenin is targeted to ubiquitin-proteasome-mediated degradation.
Hong Lin et al.
Nature communications, 12(1), 2461-2461 (2021-04-30)
COP1 and COP9 signalosome (CSN) are the substrate receptor and deneddylase of CRL4 E3 ligase, respectively. How they functionally interact remains unclear. Here, we uncover COP1-CSN antagonism during glucose-induced insulin secretion. Heterozygous Csn2WT/K70E mice with partially disrupted binding of IP6
Yanjun Li et al.
Oncogenesis, 9(2), 20-20 (2020-02-15)
Given that colorectal cancer stem cells (CCSCs) play key roles in the tumor dormancy, metastasis, and relapse, targeting CCSCs is a promising strategy in cancer therapy. Here, we aimed to identify the new regulators of CCSCs and found that Cullin

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