>tr|D9PYF6|D9PYF6_METTM F420-reducing hydrogenase, subunit beta OS=Methanothermobacter marburgensis GN=frhB MVLGTYKEIVSARSTDREIQKLAQDGGIVTGLLAYALDEGIIEGAVVAGPGEEFWKPQPM VAMSSDELKAAAGTKYTFSPNVMMLKKAVRQYGIEKLGTVAIPCQTMGIRKMQTYPFGVR FLADKIKLLVGIYCMENFPYTSLQTFICEKLGVSMELVEKMDIGKGKFWVYTQDDVLTLP LKETHGYEQAGCKICKDYVAELADVSTGSVGSPDGWSTVITRTDAGDSIFKQAVEAGLFE TKPIEEVKPGLGLLEKLAAQKKEKAEKNIAARKEMGLPTPF