>3APY_1|Chains A, B, C, D, E, F, G, H|Methylenetetrahydrofolate reductase|Thermus thermophilus (300852) MKIRDLLKARRGPLFSFEFFPPKDPEGEEALFRTLEELKAFRPAFVSITYGAMGSTRERSVAWAQRIQSLGLNPLAHLTVAGQSRKEVAEVLHRFVESGVENLLALRGDPPRGERVFRPHPEGFRYAAELVALIRERYGDRVSVGGAAYPEGHPESESLEADLRHFKAKVEAGLDFAITQLFFNNAHYFGFLERARRAGIGIPILPGIMPVTSYRQLRRFTEVCGASIPGPLLAKLERHQDDPKAVLEIGVEHAVRQVAELLEAGVEGVHFYTLNKSPATRMVLERLGLRPASGQPAKLAAALEHHHHHH