Rabbit Polyclonal P19 antibody. Suitable for WB and reacts with Cucumber necrosis virus samples.
pH: 7.4
Preservative: 0.02% Sodium azide
Constituents: PBS, 50% Glycerol (glycerin, glycerine), 0.87% Sodium chloride
| WB | |
|---|---|
| Cucumber necrosis virus | Expected |
| Species | Dilution info | Notes |
|---|---|---|
Species Cucumber necrosis virus | Dilution info Use at an assay dependent concentration. | Notes - |
Viral suppressor of RNA silencing which binds specifically to silencing RNAs (siRNAs). Acts as a molecular caliper to specifically select siRNAs based on the length of the duplex region of the RNA (By similarity).
RNA silencing suppressor p19, 19 kDa symptom severity modulator, ORF4
Rabbit Polyclonal P19 antibody. Suitable for WB and reacts with Cucumber necrosis virus samples.
pH: 7.4
Preservative: 0.02% Sodium azide
Constituents: PBS, 50% Glycerol (glycerin, glycerine), 0.87% Sodium chloride
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RNA silencing suppressor p19 protein also known as Tombusvirus p19 mechanically binds to small interfering RNAs (siRNAs) with high affinity. Its primary function involves sequestering siRNAs to prevent their incorporation into the RNA-induced silencing complex (RISC) effectively blocking RNA silencing. P19 protein weighs approximately 19 kDa and is typically expressed in plant cells infected by certain viruses like the Tomato bushy stunt virus. Through this mechanism p19 engages in viral counter-defense strategies against the host's RNA silencing pathway.
RNA silencing suppressor p19 disrupts the cellular RNA interference (RNAi) machinery which is an essential aspect of gene regulation and antiviral defense in plants. P19 acts as part of a strategy to prevent viral RNA degradation by interfering with the natural cessation of viral spread. As the p19 protein binds to siRNAs the dicer-like proteins which normally facilitate RNA processing can no longer effectively produce silencing signals within the cell.
RNA silencing suppressor p19 influences the RNA interference pathway and intersects with the gene silencing pathways in plants. In the context of RNAi p19 prevents the effective functioning of pathway components like DICER-Like (DCL) proteins responsible for generating siRNA from double-stranded RNA precursors. The interaction between p19 and these proteins highlights their significant roles in the antiviral immune response within the RNAi pathway.
RNA silencing suppressor p19 links to viral infections in plants such as those caused by the Tomato bushy stunt virus. This protein's interference with the RNAi pathway can lead to unchecked virus proliferation causing significant economic losses in agriculture through plant disease and reduced crop yield. Additionally the hyperactivity of RNA silencing suppressor p19 in an infected plant cell can disrupt normal gene function potentially affecting proteins involved in growth and stress response mechanisms therefore exacerbating disease symptoms.
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