>sp|Q8R4T1|CYS1_MOUSE Cystin-1 OS=Mus musculus GN=Cys1 MGSGSSRSGRIPRRRRSPDRRQTGPGETASEGGTADQAPTAAGQEESGRDPRPATPSGGR EETLRLLDQLLAESEAWGPQELTPRGPARLAPAVSPEKKVKGNPEDSCASEAPGNSPKRP EGQSAISYDYSEEELMASIEREYCR