>sp|Q58252|MCRB_METJA Methyl-coenzyme M reductase I subunit beta OS=Methanocaldococcus jannaschii GN=mcrB MIPMVKYKDTINLYDEKGKLVEENVPLEAISPLHNPTIQKLVKDVKRTVAVNLAGIENAL RTGQVGGKGCMIKGRELDLPIVENAETIAEYVEKVVRVSEDDDTSIKLINDGKQMAVQIP SKRLDVAAEYSVSVLVTAQALKEAIIRTFDVDIFDAPMVHAAVLGGYPHEVTMKGSNIAA LLGSPLSLEGPGYALRNIMANHFVACTKKNVMNAVAFAAIMEQTAMFEMGDAVGLFERLH LLGLAYQGLNADNLVIDLVKANGKNGTVGTVVASVVERALEDGVIKEDKTLPSGFKLYKP VDVAKWNAYAAAGLVAAAIVNCGAARAAQNIASTILYYNDILEYETGLPGVDFGRAEGTA VGFSFFSHSIYGGGGPGIFNGNHIVTRHSKGFAIPPVAAAMCLDAGTQMFSPERTSALVG TVFSAIDEFREPLKYVIKGALEVKDKI