About: dsRNA Induction Pathway     Goto   Sponge   NotDistinct   Permalink

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AttributesValues
rdf:type
rdfs:label
  • dsRNA Induction Pathway
rdfs:subClassOf
Semantic_Type
  • Functional Concept
Preferred_Name
  • dsRNA Induction Pathway
UMLS_CUI
  • C1515618
BioCarta_ID
  • h_rnaPathway
ALT_DEFINITION
  • One defense against viral infection is provided by PKR, double-stranded RNA activated protein kinase. When PKR interacts with dsRNA found in cells during viral infection, PKR phosphorylates itself and cellular proteins including the translation factor elF2a and the transcription factor NF-kB. The repression of translation caused by phosphorylation of elF2a prevents cells from producing viral proteins and creating infectious viral particles. PKR phosphorylation of I-kB kinase activates NF-kB to induce transcription of inflammatory factors and stimulate an immune response that impedes viral infection. The PKR kinase is induced by interferon and some of the anti-viral activity of interferon may be mediated by PKR. Some viruses have evolved mechanisms to inactivate PKR to promote successful infection. Another substrate of PKR, the tumor suppressor p53, may be involved in potential PKR regulation of the cell cycle and apoptosis.BIOCARTA
Legacy_Concept_Name
  • dsRNA_Induction_Pathway
FULL_SYN
  • dsRNA Induction PathwayPTNCI
  • Double Stranded RNA Induced Gene ExpressionPTBIOCARTA
code
  • C39224
is someValuesFrom of
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