>sp|Q91W29|COX42_MOUSE Cytochrome c oxidase subunit 4 isoform 2, mitochondrial OS=Mus musculus GN=Cox4i2 MFSRAARSLVMRTGLRTRGTGTHSPGDAAGSQRRMTPYVDCYAQRSYPMPDEPFCTELSE EQRALKEKEKGSWTQLSQAEKVALYRLQFHETFAEMNHRSNEWKTVMGCVFFFIGFTALV IWWQRVYVFPKKVVTLTEERKAQQLQRLLDMKSNPIQGLAAHWDYEKKEWKK