Yusuke Kuwana, Yuya Ashizawa, Miki Ajima, Takuya Nomura, Mayu Kakeno, Shunya Hirai, Takashi Miura. Micelle-associated endomorphin-1 has ability to bind copper in the oxidation state either Cu(II) or Cu(I). Archives of Biochemistry and Biophysics. 2022. 727. 109305-109305