name: pattern recognition receptor activity
def: "Combining with a pathogen-associated molecular pattern (PAMP), a structure conserved among microbial species, or damage-associated molecular pattern (DAMP), an endogenous molecule released from damaged cells), to initiate a change in cell activity." [GOC:ar, GOC:bf, Wikipedia:Pattern_recognition_receptor]
comment: Pattern recognition receptors can be signaling (binding to a ligand and transmitting the signal within the cell) or endocytic (binding to a ligand and promoting the attachment, engulfment and destruction of microorganisms by phagocytes, without relaying an intracellular signal).
synonym: "PRR activity" EXACT [Wikipedia:Pattern_recognition_receptor]
is_a: GO:0004872 ! receptor activity
relationship: has_part: GO:0001871 ! pattern binding
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