N4BP1 Rabbit Polyclonal Antibody

Specifications

Product Data
Applications	IHC, WB
Recommend Dilution	Western blot: 1/500 - 1/1000. Immunohistochemistry on paraffin sections: 1/50 - 1/200.
Reactivity	Human
Host	Rabbit
Clonality	Polyclonal
Specificity	This antibody detects endogenous levels of N4BP1 protein. (region surrounding Tyr415)
Formulation	Phosphate buffered saline (PBS), pH 7.2. State: Aff - Purified State: Liquid purified Ig fraction Preservative: 15 mM sodium azide
Concentration	1.0 mg/ml
Purification	Affinity chromatography (> 95% (by SDS-PAGE)
Conjugation	Unconjugated
Storage Condition	Store undiluted at 2-8°C for one month or (in aliquots) at -20°C for longer. Avoid repeated freezing and thawing.
Predicted Protein Size	~ 100 kDa
Gene Name	NEDD4 binding protein 1
Database Link	Entrez Gene 9683 Human UniProt ID O75113
Background	Nedd4-binding partner-1 (N4BP1) has been identified as a protein interactor and a substrate of the homologous to E6AP C terminus (HECT) domain-containing E3 ubiquitin–protein ligase (E3), Nedd4. Here, we describe a previously unrecognized functional interaction between N4BP1 and Itch, a Nedd4 structurally related E3, which contains four WW domains, conferring substrate-binding activity. We show that N4BP1 association with the second WW domain (WW2) of Itch interferes with E3 binding to its substrates. In particular, we found that N4BP1 and p73alpha, a target of Itchmediated ubiquitin/proteasome proteolysis, share the same binding site. By competing with p73alpha for binding to the WW2 domain, N4BP1 reduces the ability of Itch to recruit and ubiquitylate p73alpha and inhibits Itch autoubiquitylation activity both in in vitro and in vivo ubiquitylation assays.
Synonyms	KIAA0615
Reference Data

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