>sp|Q57653|Y200_METJA Uncharacterized hydrogenase expression/formation protein MJ0200 OS=Methanocaldococcus jannaschii GN=MJ0200 MCLAIPCKVVEIIEEDGEKYAIAEYKGVKQKAKLTLLDKEVKIGDYILIHTGYALEVLSE EDAKLSLEAWEELFKALEEMEQ