Anti-KSHV ORF57 Antibody

Product Name

Anti-KSHV ORF57 Antibody

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SKU/Catalog Number

A19763

Size

100ug

Form

Liquid (sterile filtered)

Description

Boster Bio Anti-KSHV ORF57 Antibody (Catalog # A19763). Tested in ELISA, WB applications. This antibody reacts with Human.

Storage & Handling

Store vial at -20°C prior to opening. Aliquot contents and freeze at -20°C or below for extended storage. Avoid cycles of freezing and thawing. Centrifuge product if not completely clear after standing at room temperature. This product is stable for several weeks at 4°C as an undiluted liquid. Dilute only prior to immediate use. Expiration date is one (1) year from date of opening. (Ship on dry ice.)

Cite This Product

Anti-KSHV ORF57 Antibody (Boster Biological Technology, Pleasanton CA, USA, Catalog # A19763)

Host

Rabbit

Contents

0.02 M Potassium Phosphate, 0.15 M Sodium Chloride, pH 7.2, 0.01% (w/v) Sodium Azide

Clonality

Polyclonal

Isotype

IgG

Immunogen

This affinity purified antibody was prepared from whole rabbit serum produced by repeated immunizations with a synthetic peptide corresponding to a region near the C-terminal of human KSHV ORF57 protein.

*Blocking peptide can be purchased. Costs vary based on immunogen length. Contact us for pricing.

Reactive Species

A19763 is reactive to in Human

Applications

A19763 is guaranteed for ELISA, WB Boster Guarantee

Observed Molecular Weight

Calculated molecular weight

51012 MW

Background of

This antibody is suitable for Cancer, Immunology and Nuclear Signaling research. ORF57 (also known as MTA), one of the earliest Kaposi's sarcoma-associated herpesvirus (KSHV) regulatory proteins to be expressed, is essential for virus lytic replication. A counterpart is present in every herpesvirus sequenced, indicating the importance of this signature viral protein, and those examined act post-transcriptionally, affecting RNA splicing and transport. KSHV ORF57 is capable of establishing both lytic and latent replication cycles.  In KS, the virus localizes to tumor progenitor endothelial cells, most of which are latently infected. In cell culture, KSHV replication is generally studied using B-cell lines, such as BCBL-1, generated from primary effusion lymphoma material. Most BCBL-1 cells are latently infected, although there is some spontaneous virus reactivation. Addition of chemical inducers such as sodium n-butyrate, 12-O-tetradecanoylphorbol-13-acetate (TPA), and valproic acid (VA) to these cells efficiently induces the lytic cycle and produces virions. KSHV ORF57 protein predominantly localizes to the nucleus and can shuttle between the nucleus and cytoplasm. Most HSV-1 genes are unspliced; by contrast, ORF57 is spliced gene; the protein is 455 amino acids in length and 50kDa in size.

Antibody Validation

Boster validates all antibodies on WB, IHC, ICC, Immunofluorescence, and ELISA with known positive control and negative samples to ensure specificity and high affinity, including thorough antibody incubations.

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Assay Dilutions Recommendation

The recommendations below provide a starting point for assay optimization. The actual working concentration varies and should be decided by the user.

ELISA: 1:100,000 - 170,000
IHC: User optimized
WB: 1:5,000 - 1:8,000

Validation Images & Assay Conditions

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Western blot using rabbit anti-KSHV ORF57 affinity purified polyclonal antibody (Catalog # A19763) in HEK293 cells transfected with ORF57 expression vector and ORF57 truncations, or in KSHV infected B-cell line (BCBL-1) treated with or without valproic acid to induce viral replication (arrow). The membrane was probed with the primary antibody diluted 1:7,500 (left) and 1:1,000 (right). Personal Communication, V. Majerciak, M.Zheng, CCR-NCI, Bethesda, MD.

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