OBSOLETE. Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of host PKR (protein kinase regulated by RNA) activity by promoting the degradation of PKR via the proteosome. For example, the Rift Valley fever virus (RVFV) NSs protein induces the down-regulation of PKR by degradation through proteasomes.

OBSOLETE. Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of host JAK1 (Janus Kinase 1) activity by stopping, preventing or reducing tyrosine phosphorylation of JAK1 and thereby activation of JAK1.

OBSOLETE. Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of host JAK1 (Janus Kinase 1) activity by interacting directly and selectively with JAK1. For example, the polyoma virus T antigen binds to JAK1 and renders it inactive.

Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of host ubiquitin-like protein ISG15 conjugation to a susbtrate. ISG15 is a ubiquitin-like protein that is conjugated to lysine residues on various target proteins. Viruses escape from the antiviral activity of ISG15 by using different mechanisms; the influenza B virus NS1 protein for instance blocks the covalent linkage of ISG15 to its target proteins by directly interacting with ISG15. The papain-like protease from the coronavirus cleaves ISG15 derivatives.

Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of complement activation. The activation of complement involves the sequential proteolysis of proteins to generate enzymes with catalytic activities. The biological functions of the complement include opsonization, inflammation, lysis of immune complexes, or enhancement of the humoral immune response. For example, the virus complement control protein (VCP) of vaccinia virus, and the complement control protein of herpesvirus inhibit C3 convertase.

Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of a JAK1-STAT signaling cascade in a host organism by reducing the activity of host TYK2 (tyrosine kinase 2). TYK2 is an intracellular signal-transducing tyrosine kinase that associates with the cytoplasmic tails of cytokine receptors and transmits the cytokine signal by phosphorylating receptor subunits.

OBSOLETE. Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of host TYK2 (tyrosine kinase 2) activity by stopping, preventing or reducing phosphorylation and thereby activation of TYK2.

Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of a JAK-STAT signal cascade in a host organism by reducing the activity of host JAK1 (Janus Kinase 1).

OBSOLETE. Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of host STAT2 (signal transducer and activator of transcription-2) activity by retaining STAT2 in the cytoplasm, so STAT2 is unable to translocate to the nucleus to activate transcription of its target genes.

OBSOLETE. Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of host STAT1 (signal transducer and activator of transcription-1) activity by stopping, preventing, or reducing the frequency, rate or extent of the introduction of a phosphate group to a tyrosine residue of a STAT1 protein. For example, the measles virus V protein inhibits tyrosine phosphorylation of STAT1, thereby preventing STAT1 activation.

OBSOLETE. Any process in which a virus stops, prevents, or reduces the frequency, rate or extent of host STAT2 (signal transducer and activator of transcription-2) activity by stopping, preventing, or reducing the frequency, rate or extent of the introduction of a phosphate group to a tyrosine residue of a STAT2 protein. For example, the measles virus V protein inhibits tyrosine phosphorylation of STAT2, thereby preventing STAT2 activation.

Any process that activates or increases the frequency, rate or extent of o-orsellinic acid biosynthetic process.

Any process that modulates the frequency, rate or extent of o-orsellinic acid biosynthetic process.

Any process that modulates the frequency, rate or extent of orcinol biosynthetic process.

Any process that stops, prevents or reduces the frequency, rate or extent of orcinol biosynthetic process.

Any process that activates or increases the frequency, rate or extent of orcinol biosynthetic process.

Any process that modulates the frequency, rate or extent of tensidol A biosynthetic process.

Any process that stops, prevents or reduces the frequency, rate or extent of tensidol A biosynthetic process.

Any process that activates or increases the frequency, rate or extent of tensidol A biosynthetic process.

Any process that stops, prevents or reduces the frequency, rate or extent of adenylate cyclase-inhibiting opioid receptor signaling pathway.