Thermo Fisher Scientific Viral Protein U Polyclonal Antibody

Applications

Tested Dilution

Publications

Western Blot (WB)

1:500-1:1,000

-

Immunohistochemistry (IHC)

1:50-1:250

-

Immunocytochemistry (ICC/IF)

1:50-1:250

-

Flow Cytometry (Flow)

1:50-1:250

-

ELISA (ELISA)

1:10,000

-

Immunoprecipitation (IP)

1:50-1:250

-

Immunomicroscopy (IM)

1:50-1:200

-

Product Specifications

Species Reactivity

Virus

Host/Isotype

Rabbit / IgG

Class

Polyclonal

Type

Antibody

Immunogen

Synthetic peptide taken within amino acid region 50-90 on VPU peptide.

Conjugate

Unconjugated Unconjugated Unconjugated

Form

Liquid

Concentration

0.5-1.5 mg/mL

Purification

Affinity chromatography

Storage buffer

proprietary buffer, pH 7.4-7.8, with 30% glycerol, 0.5% BSA

Contains

0.02% sodium azide

Storage conditions

-20°C

Shipping conditions

Ambient (domestic); Wet ice (international)

Target Information

Enhances virion budding by targeting host CD4 and Tetherin/BST2 to proteasome degradation. Degradation of CD4 prevents any unwanted premature interactions between viral Env and its host receptor CD4 in the endoplasmic reticulum. Degradation of antiretroviral protein Tetherin/BST2 is important for virion budding, as BST2 tethers new viral particles to the host cell membrane. Mechanistically, Vpu bridges either CD4 or BST2 to BTRC, a substrate recognition subunit of the Skp1/Cullin/F-box protein E3 ubiquitin ligase, induces their ubiquitination and subsequent proteasomal degradation. The alteration of the E3 ligase specificity by Vpu seems to promote the degradation of host IKBKB, leading to NF-kappa-B down-regulation and subsequent apoptosis. Ion channel activity has also been suggested, however, formation of cation-selective channel has been reconstituted ex-vivo in lipid bilayers. It is thus unsure that this activity plays a role in vivo.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.