however , it binds both mouse placental lactogen ( mpl ) and smprl with equilibrium association constants of 3.90 x 10 ( 8 ) m-1 and 2.25 x 10 ( 8 ) m-1 , respectively , suggesting that smprl and mpl share biological roles by acting through the same receptor .
C1327616
smprl
C0033371
smprl