ERAL1 (Era like 12S mitochondrial rRNA chaperone 1) is a mitochondrial GTPase that plays a critical role in mitochondrial ribosome assembly and cellular metabolism. The protein is localized to the mitochondrial matrix where it specifically binds to the 12S mitochondrial rRNA and associates with mitoribosomal proteins 1. ERAL1 functions as a chaperone essential for proper assembly of the small mitochondrial ribosomal subunit, and its depletion leads to reduced mitochondrial translation, redistribution of ribosomal subunits, and decreased 12S rRNA levels 1. Beyond ribosome biogenesis, ERAL1 serves dual functions in cellular defense - it maintains mitochondrial function and also acts as an antiviral signaling protein by facilitating RIG-I-like receptor signaling pathways 2. Mutations in ERAL1 cause Perrault syndrome 6, a rare autosomal recessive disorder characterized by ovarian dysgenesis and sensorineural hearing loss 3 4. Patients with ERAL1 mutations show reduced protein levels, impaired mitochondrial ribosome assembly, decreased 12S rRNA levels, and markedly reduced mitochondrial respiration 3. The gene maps to chromosome 17.2, and ERAL1 deficiency results in mitochondrial dysfunction, elevated superoxide production, growth retardation, and increased apoptosis 1.