A second estrogen receptor from Japanese lamprey (Lethenteron japonicum) does not have activities for estrogen binding and transcription.
Katsu Y, Cziko PA, Chandsawangbhuwana C, Thornton JW, Sato R, Oka K, Takei Y, Baker ME, Iguchi T. A second estrogen receptor from Japanese lamprey (Lethenteron japonicum) does not have activities for estrogen binding and transcription. Gen Comp Endocrinol. 2016 09 15; 236:105-114.