Chains and heterogens:
PDB Chain Sequences:
>1qpgA (A:) slssklsvqdldlkdkrvfirvdfnvpldgkkitsnqrivaalptikyvlehhpryvvla shlgqpngernekyslapvakelqsllgkdvtflndcvgpeveaavkasapgsvillenl ryhieeegsrkvdgqkvkaskedvqkfrhelssladvyindafgtahrahssmvgfdlpq raagfllekelkyfgkalenptrpflailggakvadkiqlidnlldkvdsiiigggmaft fkkvlenteigdsifdkagaeivpklmekakakgvevvlpvdfiiadafsadantktvtd kegipagwqgldngpesrklfaatvakaktivwngppgvfefekfaagtkalldevvkss aagntviigggdtatvakkygvtdkishvstgggaslellegkelpgvaflsekk