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