>8R4M_1|Chains A, B|Four-helix bundle copper-binding protein|Methylosinus trichosporium OB3b (595536) AKYKALLDSSSHCVAVGEDCLRHCFEMLAMNDASLGACTKATYDLVAACGALAKLAGTNSAFTPAFAKVVADVCAACKKECDKFPSIAECKACGEACQACAEECHKVAA