N4BP1 Rabbit Polyclonal Antibody

CAT#: AP21078PU-N

N4BP1 rabbit polyclonal antibody, Aff - Purified

Product Images

Western blot (WB) analysis of N4BP1 antibody (Cat.-No.: AP21078PU-N) in extracts from Hela cells.

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  Immunohistochemistry (IHC) analyzes of N4BP1 antibody (Cat.-No.: AP21078PU-N) in paraffin-embedded human brain tissue.

Specifications

Product Data

• Applications: IHC, WB
• Recommended Dilution: Western blot: 1/500 - 1/1000.
  Immunohistochemistry on paraffin sections: 1/50 - 1/200.
• Reactivities: 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: Store undiluted at 2-8°C for one month or (in aliquots) at -20°C for longer.
  Avoid repeated freezing and thawing.
• Stability: Shelf life: one year from despatch.
• Predicted Protein Size: ~ 100 kDa
• Gene Name: Homo sapiens NEDD4 binding protein 1 (N4BP1)
• 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