Chains and heterogens:
PDB Chain Sequences:
>1ulaA (A:) mengytyedykntaewllshtkhrpqvaiicgsglggltdkltqaqifdyseipnfprst vpghagrlvfgflngracvmmqgrfhmyegyplwkvtfpvrvfhllgvdtlvvtnaaggl npkfevgdimlirdhinlpgfsgqnplrgpnderfgdrfpamsdaydrtmrqralstwkq mgeqrelqegtyvmvagpsfetvaecrvlqklgadavgmstvpevivarhcglrvfgfsl itnkvimdyeslekanheevlaagkqaaqkleqfvsilmasiplpdkas