Members of this entry are inner mitochondrial membrane proteins which play a role in potassium and hydrogen ion exchange [3]. Deletion of LETM1 is thought to be involved in the development of Wolf-Hirschhorn syndrome in humans [1]. This entry represents the ribosome-binding domain (RBD) of LETM1/MDM38 proteins [4].

1: LETM1, a novel gene encoding a putative EF-hand Ca(2+)-binding protein, flanks the Wolf-Hirschhorn syndrome (WHS) critical region and is deleted in most WHS patients. Endele S, Fuhry M, Pak SJ, Zabel BU, Winterpacht A; Genomics 1999;60:218-225. PMID:10486213

2: Identification of nuclear genes encoding mitochondrial proteins: isolation of a collection of D. melanogaster cDNAs homologous to sequences in the Human Gene Index database. Caggese C, Ragone G, Perrini B, Moschetti R, De Pinto V, Caizzi R, Barsanti P; Mol Gen Genet 1999;261:64-70. PMID:10071211

3: Electroneutral K+/H+ exchange in mitochondrial membrane vesicles involves Yol027/Letm1 proteins. Froschauer E, Nowikovsky K, Schweyen RJ; Biochim Biophys Acta 2005;1711:41-48. PMID:15904662

4: Mdm38 is a 14-3-3-like receptor and associates with the protein synthesis machinery at the inner mitochondrial membrane. Lupo D, Vollmer C, Deckers M, Mick DU, Tews I, Sinning I, Rehling P; Traffic. 2011;12:1457-1466. PMID:21718401