Mitochondrion inner membrane ; Peripheral membrane protein . Localizes to the matrix side of the mitochondrion inner membrane. .; [Isoform 4]: Mitochondrion inner membrane ; Peripheral membrane protein . Localizes to the matrix side of the mitochondrion inner membrane. .
[Isoform 1]: Erythroid-specific. ; [Isoform 2]: Erythroid-specific. ; [Isoform 3]: Erythroid-specific. ; [Isoform 4]: Erythroid-specific.