The protein encoded by this gene is a GTP phosphotransferase that is found in the mitochondrial matrix. Several transcript variants encoding a few different isoforms have been found for this gene. [provided by RefSeq, Dec 2010].
Noma, Fujisawa, Yamashiro, Shinohara, Nakazawa, Gondo, Ishihara, Yoshinobu: "Structure and expression of human mitochondrial adenylate kinase targeted to the mitochondrial matrix." in: The Biochemical journal, Vol. 358, Issue Pt 1, pp. 225-32, (2001) (PubMed).