>sp|P81221|HMD_METTW 5,10-methenyltetrahydromethanopterin hydrogenase OS=Methanothermobacter thermautotrophicus GN=hmd MKLAILGAGCYRTHAASGITNFSRACEVAEMVGKPEIAMTHSTITMGAELKELAGVDEVV VADPVFDNQFTVIDDFAYEDVIEAHKEDPEKIMPQIREKVNEVAKELPKPPEGAIHFTHP EDLGFEITTDDREAVADADFIMTWFPKGDMQPGIINKFIDDIKPGAIVTHACTIPTTKFY KIFEEKHGDLVTRPETLNVTSYHPGAVPEMKGQVYIAEAYASEEAINTLFELGQKARGNA YKLPAELLGPVCDMCSALTAITYAGILTYRDSVTQVLGAPAGFAQMMAKESLEQLTALMD KVGIDKMEESLDPGALLGTADSMNFGASAEILPTVFEVLEKRKK