Cloning of rat lutropin (LH) receptor analogs lacking the soybean lectin domain

cDNAs coding for rat ovarian luteinizing hormone receptor analogs lacking three of the leucine repeats were detected in a library which had been prepared from rat luteal tissue undergoing human chorionic gonadotropin-induced luteinization. These leucine repeats correspond to amino acids 206-267 and contain the portion of the receptor that is homologous to the soybean lectin. The cDNA library also contained a receptor analog lacking amino acids 321-700 which code for the transmembrane domain. S-1 mapping suggests that this latter form constitutes approximately half of all receptor-related mRNA.