>1F3U_1|Chains A, C, E, G|TRANSCRIPTION INITIATION FACTOR IIF, BETA SUBUNIT|Homo sapiens (9606) AERGELDLTGAKQNTGVWLVKVPKYLSQQWAKASGRGEVGKLRIAKTQGRTEVSFTLNEDLANIHDIGGKPASVSAPREHPFVLQSVGGQTLTVFTESSSDKLSLEGIVVQRAECRPA >1F3U_2|Chains B, D, F, H|TRANSCRIPTION INITIATION FACTOR IIF, ALPHA SUBUNIT|Homo sapiens (9606) AALGPSSQNVTEYVVRVPKNTTKKYNIMAFNAADKVNFATWNQARLERDLSNKKIYQEEEMPESGAGSEFNRKLREEARRKKYGIVLKEFRPEDQPWLLRVNGKSGRKFKGIKKGGVTENTSYYIFTQCPDGAFEAFPVHNWYNFTPLARHRTLTAEEAEEEWERRNKVLN