>6YKA_1|Chains A, B|5,10-methenyltetrahydromethanopterin hydrogenase|Methanolacinia paynteri G-2000 (694436) MTIKKVAILGAGCYRTHSATGITNFARACEVAEMVGKPEIAMTHSTIAMAAELKYLAGIDNIVISDPSFAGEFTVVKDFDYNEVIKAHKENPETIMPKIREKVNELAKTVPKPPKGAIHFVHPEDLGLKVTTDDREAVRDADLIITWLPKGDMQKGIIEKFAGDIKQGAIITHACTIPTTLFYKIFEELGIADKVEVTSYHPGAVPEMKGQVYIAEGYASEEAINTIYELGKKARGHAFKLPAELIGPVCDMCAALTAITYAGLLVYRDAVMNILGAPAGFSQMMATESLEQITAYMKKVGIKNLEENLDPGVFLGTADSMNFGPIAEILPTVLKSLEKRAK