>7TH4_1|Chains A, B|Methylenetetrahydrofolate reductase|Thermus thermophilus HB8 (300852) MKIRDLLKARRGPLFSFEFFPPKDPEGEEALFRTLEELKAFRPAFVSITYGAMGSTRERSVAWAQRIQSLGLNPLAHLTVAGQSRKEVAEVLHRFVESGVENLLALRGDPPRGERVFRPHPEGFRYAAELVALIRERYGDRVSVGGAAYPEGHPESESLEADLRHFKAKVEAGLDFAITQLFFNNAHYFGFLERARRAGIGIPILPGIMPVTSYRQLRRFTEVCGASIPGPLLAKLERHQDDPKAVLEIGVEHAVRQVAELLEAGVEGVHFYTLNKSPATRMVLERLGLRPASGQP