Molecular function

AMPA receptor activity, alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionate selective glutamate receptor activity

An ionotropic glutamate receptor activity that exhibits fast gating by glutamate and acts by opening a cation channel permeable to sodium, potassium, and, in the absence of a GluR2 subunit, calcium.

Note that this term represents an activity and not a gene product. Consider also annotating to the molecular function terms 'ionotropic glutamate receptor activity ; GO:0004970' and 'cation channel activity ; GO:0005261'.