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Ontology Browser

Term:
PERK-mediated unfolded protein response (GO:0036499)
Annotations: Rat: (14) Mouse: (14) Human: (18) Chinchilla: (14) Bonobo: (14) Dog: (14) Squirrel: (14) Pig: (14)
Parent Terms Term With Siblings Child Terms
ATF6-mediated unfolded protein response +   
ER overload response +   
GCN2-mediated signaling  
HRI-mediated signaling  
IRE1-mediated unfolded protein response +   
negative regulation of endoplasmic reticulum unfolded protein response +   
PERK-mediated unfolded protein response +   
A series of molecular signals mediated by the endoplasmic reticulum membrane stress sensor PERK (PKR-like ER kinase). Begins with activation of PERK in response to endoplasmic reticulum (ER) stress and ends with regulation of a downstream cellular process, e.g. transcription. The main substrate of PERK is the translation initiation factor eIF2alpha. Serine-phosphorylation of eIF2alpha by PERK inactivates eIF2alpha and inhibits general protein translation. In addition, eIF2alpha phosphorylation preferentially increases the translation of selective mRNAs such as ATF4 (activating transcription factor 4), which up regulates a subset of UPR genes required to restore folding capacity.
PKR-mediated signaling 
positive regulation of endoplasmic reticulum unfolded protein response +   
positive regulation of transcription from RNA polymerase II promoter involved in unfolded protein response  
regulation of endoplasmic reticulum unfolded protein response +   
SREBP signaling pathway +   

Synonyms
Exact Synonyms: PERK branch of UPR ;   PKR-like ER kinase signal transduction ;   UPR signaling by PERK stress sensor ;   endoplasmic reticulum unfolded protein response; PERK signaling
Broad Synonyms: PERK signal transduction pathway
Related Synonyms: EIF2AK3-mediated unfolded protein response ;   PERK signaling in response to endoplasmic reticulum stress ;   eukaryotic translation initiation factor 2-alpha kinase 3-mediated unfolded protein response
Definition Sources: GOC:bf, GOC:PARL, PMID:22013210, PMID:27629041

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