Putative zinc binding domain with four conserved cysteine residues. This domain is found in the human disease protein Swiss:O60220. Members of this family such as Tim9 and Tim10 are involved in mitochondrial protein import [1]. Members of this family seem to be localised to the mitochondrial intermembrane space [2].

1: The role of the TIM8-13 complex in the import of Tim23 into mitochondria. Paschen SA, Rothbauer U, Kaldi K, Bauer MF, Neupert W, Brunner; EMBO J 2000;19:6392-6400. PMID:11101512

2: Mrs5p, an essential protein of the mitochondrial intermembrane space, affects protein import into yeast mitochondria. Jarosch E, Tuller G, Daum G, Waldherr M, Voskova A, Schweyen RJ; J Biol Chem 1996;271:17219-17225. PMID:8663351