What is RNAse L?

By regulating viral and cellular RNA expression, RNase L plays an important role in the antiviral and antiproliferative activities of IFN and contributes to innate immunity and cell metabolism.

How does RNAse L work?

When active, RNAse L cleaves and identifies viral RNA and feeds it into MDA5 activation sites, enhancing the production of IFN-β. The RNA fragments produced by RNAse L have double stranded regions, as well as specific markers, that allow them to be identified by the RNAse L and MDA5.

What is the L gene?

The L protein, with >2,000 amino acid residues in a single polypeptide chain, is thought to be responsible for the enzymatic activities involved in viral RNA replication and transcription. The L genes of paramyxoviruses have been implicated in viral pathogenesis.

What is the L protein in rabies virus?

The rabies genome encodes five proteins: nucleoprotein (N), phosphoprotein (P), matrix protein (M), glycoprotein (G) and polymerase (L).

What is L protein of rabies?

Rabies virus (RABV) and other viruses with single-segment, negative-sense, RNA genomes have a multi-functional polymerase protein (L) that carries out the various reactions required for transcription and replication.

What does RNase cleave?

The enzyme is active under a wide range of reaction conditions. At low salt concentrations (0 to 100 mM NaCl), RNase A cleaves single-stranded and double-stranded RNA as well as RNA strand in RNA-DNA hybrids.

Why is RNase A important?

Ribonucleases (RNases) are important factors for the establishment of virulence in an increasing number of pathogens. These enzymes are responsible for the maturation and degradation of RNA molecules, being key players in RNA metabolism.

Is Nipah virus RNA or DNA?

Nipah virus (NiV) is a nonsegmented, single-stranded, negative-sense RNA virus belonging to the genus Henipavirus, family Paramyxoviridae. NiV causes acute encephalitis and respiratory disease in humans, is associated with high mortality, and poses a threat in southern Asia.

Which virus causes rabies?

Rabies is caused by a lyssavirus (a form of virus that causes encephalitis) that affects the saliva and nervous system. Most cases of rabies in humans are caused by a bite or scratch from an infected animal.

How does RNase A degrade RNA?

RNase R initiates degradation of a structured substrate with a minimal 3′ overhang of 5 nucleotides by binding the single-stranded region within its nuclease domain channel. Following cleavage and release of the 3′ terminal nucleotide, translocation along the RNA substrate would be blocked by the RNA duplex.