10623005Double-stranded RNA (dsRNA) ELISA kit (K1 based)

Specifications

Supplier

Exalpha

Catalog No

10623005

Product Name

Double-stranded RNA (dsRNA) ELISA kit (K1 based)

Description

Based on the use of two double-stranded RNA (dsRNA)-specific monoclonal antibodies the dsRNA Detection Kit allows sensitive and selective detection of dsRNA molecules (larger than 30-40 bp), independent of their nucleotide composition and sequence. The detection is highly specific: dsRNA can be detected in nucleic acid extracts in the presence of 1.000-10.000-fold excess of other nucleic acids. This assay works on the sandwich-ELISA principle and uses the K1 (IgG2a) mouse monoclonal antibody to dsRNA as a catcher antibody. The monoclonal antibody K2 (IgM) is used as the detector antibody._x000D_ _x000D_ Over the past decade our double-stranded RNA (dsRNA)antibodies have been used extensively to detect and characterise plant and animal viruses with dsRNA genomes or intermediates. In addition, the anti-dsRNA antibodies can be used as a diagnostic tool to detect pathogens, including detection in paraffin-embedded fixed tissue samples (Richardson et al. 2010). _x000D_ The K1 monoclonal antibody recognises dsRNA with similar affinity to our widely used J2 antibody. It can be used for the histological and cytological detection of dsRNA in cells and tissues._x000D_ It has proven especially useful as an alternative to J2 to resolve cross-reactions and/or remove unwanted background, in those rare experimental setups where J2 did not provide satisfactory results._x000D_ K1 can be used to detect dsRNA intermediates of viruses as diverse as Hepatitis virus, Theiler’s murine encephalomyelitis virus or Japanese encephalitis virus. It has been for the detection of dsRNA in cultured cells and in fixed paraffin-embedded histological samples (see publications)._x000D_ If Poly I:C needs to be detected we highly using K1 rather than J2 because K1 has a much higher affinity for this synthetic polyribonucleotide (see Schönborn et al. 1991, Fig. 2)._x000D_ K1 has been used successfully in immunofluorescence microscopy, in flow cytometry (FACS) and in immunocapture methods (such as dot-blot and ELISA).

Size

Reagents for 500 tests

Application

ELISA

Host

Mouse

Clone

K1/K2

Isotype

IgG2a kappa/IgM kappa

Storage

Upon receipt, store entire kit at -20ºC. Once the kit is thawed, you may keep it at 4ºC for 5 days. For long-term storage, it is recommended to aliquot and freeze the antibody and dsRNA components at –20ºC.

Shipping

The Double-stranded RNA (dsRNA) ELISA kit components are shipped on blue ice.

Product Type

Kits

Source

The two dsRNA antibodies used in this kit were produced as follows: Female DBA/2 mice were injected intraperitonially with a mixture of 50 ug L-dsRNA and 75 ug methylated bovine serum albumin, emulsified in complete Freund's adjuvant. After several boosts spleen cells were fused with Sp2/0-Agl4 myeloma cells to generate the hybridoma clones K1 and K2.

Synonym

dsRNA ELISA kit