Immunogen sequence: EAVLRVARRQ LSQRGGSGAP ILLRQMFEPV SCTFTYLLGD RESREAVLID PVLETAPRDA QLIKELGLRL LYAVNTHCH. ETHE1 is a sulfur dioxygenase that localizes within the mitochondrial matrix. The enzyme functions in sulfide catabolism. Mutations in its gene re