ATPase expression protein 1 (AEP1) is a yeast mitochondrial protein [1]. It is essential for the expression of subunit 9 of mitochondrial ATP synthase [2].

1: Global analysis of protein localization in budding yeast. Huh WK, Falvo JV, Gerke LC, Carroll AS, Howson RW, Weissman JS, O'Shea EK; Nature 2003;425:686-691. PMID:14562095

2: Nuclear control of the messenger RNA expression for mitochondrial ATPase subunit 9 in a new yeast mutant. Ziaja K, Michaelis G, Lisowsky T; J Mol Biol. 1993;229:909-916. PMID:8445655