>sp|O21521|NU4M_MICPE NADH-ubiquinone oxidoreductase chain 4 (Fragment) OS=Microtus pennsylvanicus OX=10058 GN=MT-ND4 PE=3 SV=1 MLKIIFPSFMLLPLTWLSSNKKVWINVTTYSLLINLISINLLWQNNENNLSFSTMFSADP LSAPLLVLTTWLLPLMLLASQNHIKKESEHNKKLYISLLVCLQTLLIMTFSANELIMFYI LFEATLIPTLIIITRWGNQTERLNAGIYFLFYTLVGSIPLLIALIYIQNWTGTLNLILMT LDSSPINQTWSNNILWLACIMAFMVKMP