>sp|O27602|NIFH1_METTH Nitrogenase iron protein 1 OS=Methanothermobacter thermautotrophicus GN=nifH1 MVRKIAIYGKGGIGKSTTQQNTAAAMSYFHGKNVMIHGCDPKADSTRLILGGKMQTTMMD TLRELGEVACTPDKVIETGFGGIKCVESGGPEPGVGCAGRGVITAITLMERHGVYEKDLD FVFFDVLGDVVCGGFAMPVRDGKAEEIYIVASGEMMALYAANNICKGMVKYARQSGVRLG GIICNSRNVDGEKELLEEFCERIGTQMIHFVPRDNIVQKAEFNKKSVIEFDPECNQSQEY RELARKIIENKDFVIPEPMTMDEMEELVVKYGVMD