>sp|Q46FV4|MER_METBF 5,10-methylenetetrahydromethanopterin reductase OS=Methanosarcina barkeri (strain Fusaro / DSM 804) OX=269797 GN=mer PE=1 SV=1
MKFGIEFVPSDPALKIAYYAKLSEQQGFDHVWITDHYNNRDVYSTLTVLALNTNSIKIGP
GVTNSYTRNPAITASSIASIAEISGGRAVLGLGPGDKATFDAMGIAWKKPLATTKEAIQA
IRDFISGKKVSMDGEMIKFAGAKLAFKAGNIPIYMGAQGPKMLELAGEIADGVLINASHP
KDFEVAVEQIKKGAEKAGRDPSEVDVTAYACFSIDKDPVKAVNAAKVVVAFIVAGSPDLV
LERHGIPVEAKSQIGAAIAKGDFGALMGGLVTPQMIEAFSICGTPDDCMKRIKDLEAIGV
TQIVAGSPIGPAKEKAIKLIGKEIIAKM