part_of part of part of capable of capable_of capable of plasma membrane protein-containing complex signaling receptor activity receptor complex plasma membrane protein complex plasma membrane signaling receptor complex GO:0098802 Note that this term is in the subset of terms that should not be used for direct gene product annotation. Instead, select a child term or, if no appropriate child term exists, please request a new term. Direct annotations to this term may be amended during annotation QC. cellular_component Any protein complex that is part of the plasma membrane and which functions as a signaling receptor.