>sp|O27434|HDRA_METTH H(2):CoB-CoM heterodisulfide,ferredoxin reductase subunit A OS=Methanothermobacter thermautotrophicus GN=hdrA MAEEKKEETMEEPRIGVYVCHCGVNIGGVVDIEAVRDYAAKLPNVVVSKDYKYYCSDPGQ LEIQKDIKELGLNRVVVAACSPRLHEPTFRRCVEEAGLNQFLFEFANLREQDSWVHMDDP EGATEKAKDLVRMAVAKARLLEPLEASKVSVDDKALVIGGGVAGIQTALDLADMGFKTYM VEKRPSISGRMGQLDKTFPTLDCSMCILAPKMVDVGKHDNIELITYAEVKEVDGYIGNFK VKIEKKPRYIDEDLCTGCGSCVEVCPIEMPNYFDEGIGMTKAVYIPFPQAVPLCATIDKD YCIECMLCDEICERGAVKHDQEPEEIEIEVGTIIVATGYDAYDPTEKLEYGYGRHTNVIT GLELERMINASGPTDGKVIKPSDGEKPKRVAFIHCVGSRDEQIGKPYCSRVCCMYIMKNA QLIKDKMPDTEVTLYYMDIRAFGKGFEEFYKRSQEKYGIKFIRGRPAEILENPDLTLTVR SEDTLLGKVTEYDYDMVVLGVGLVPPEGSEKLRQTIGLSKSADGFLMEAHPKLRPVDTLT DGVYLAGVAQGPKDIPDAVAQASGAAARAAIPMVKGEVEIEPIVAVTDSDVCGGCEVCIE LCPFGAISIEEGHANVNVALCKGCGTCVAACPSGAMDQQHFRTEQIMAQIEAALNEQAK