[<<] molecular_function [+] GO:0004871 - signal transducer activity [72] / [666] [--] GO:0000155 - two-component sensor activity [264] / [264] [--] GO:0000156 - two-component response regulator activity [197] / [197] [+] GO:0004872 - receptor activity [41] / [63] [+] GO:0005057 - receptor signaling protein activity [0] / [68] [--] GO:0005070 - SH3/SH2 adaptor activity [0] / [0] [--] GO:0009369 - quorum sensing signal generator activity [0] / [0] [--] GO:0009370 - quorum sensing response regulator activity [0] / [0] [--] GO:0009927 - histidine phosphotransfer kinase activity [2] / [2] [--] GO:0016015 - morphogen activity [0] / [0] [--] GO:0017106 - activin inhibitor activity [0] / [0]